Hi Captain Joe! I am sorry but I am going to have to ask you to stop making these videos. Now I want to build an entire boat and my wife is not happy with me! Seriously though your content is some of the best anywhere on the Internet! Thank you yet again for sharing your extensive experience with all of us! Take care and all the best from California! 💛
Haha, you had me going there! Sorry to get you in trouble with the wife, maybe you can build her something with your new skills, maybe soften her up a little bit! You for sure need to name the boat after her if you build one! Thanks for watching from beautiful California!
I started watching your channel to learn about gel coat for my RV. I’m staying because I’m learning a ton that I feel like will actually be beneficial in my RV. Good channel.
This channel is the best site for practical, all on one site information I know of. I have worked with fiberglass for decades, but still learn some new stuff here. Good information, and well presented.
I am doing the exact same thing.. I own a rv repair company.. I started watching this to learn better water proofing ideas.. and have found so much technology to use here it is hard to go away..
next month i'll start a project where I have to remove the old foam and put another one new, into a small boat, and the timing of this video couldn't be more perfect, it saved me so much time of research on the internet. huge THX!!!
Thank you for the very thorough lesson on foam! Now I need a project to foam! As always…. Thank you for sharing your time and many talents Captain Joe. All the best. Chuck
Hi Joe ! I noticed that the foam appears to be 2 lb. density. You can lower the density by adding a small amount of water to the mix. It will do it by making the internal bubbles a little larger. It will increase the volume of the mix. It's worth experimenting with. Just a tip. 😎
Cool video. I’ve been rehabbing a boat floor and gunnels. I’ve been using a cubic inch calculator to figure out the void size. I divide that number by 25. I place the 2 jugs in very warm water the prior to the pour to get the temperature up. I use a heat gun in the space to warm it up a bit. In the tight spaces where I can’t tip a cup, I put the 2 parts in a zip lock bag, mix it by squishing the stuff around, then I cut the tip of a corner of the bag and drain mix the hole in floor.
Perfect timing, just finishing installing stringers after removing close to 300lbs of waterlogged foam and rotten plywood from a 16' boat. Watched a half dozen of your fiberglass videos and am ready to install the floor and foam soon. Still trying to decide between peanut butter and marine adhesive for securing the deck. Its all polyester resin layed over plywood, marine adhesive and stainless screws seems to be the easier diy route with only one person.
Awesome, glad you enjoyed the video! I have personally always had good success with 3m 5200 and stainless screws for deck installations. That is what we did when installing the deck on our 29. I have some videos in that series showing the process and will be putting a new floor in our Blazer project boat soon. I hope this helps, and I appreciate you watching and commenting!
Good work, Captain Joe, my dad was a sculptor and he always used that stuff. It was fun to put it in a paper Coca-Cola glass and put a straw in it as a fake fresh pour of fountain Coke. Not to drink, just to look at.
Capt Joe fish bump family your timing is right on putting in my floor this video answered many questions I had about this product would like to see you guys fiberglassing over these products soon and thanks again your time Fish bump family appreciate y'all!
Awesome! I'm glad the video was helpful and came at a good time! I might do a video on fiberglassing over polyurethane foam for you all soon. I will also be pouring and glassing foam on our upcoming project boat, so stay tuned and thanks for watching!
@@FishBumpTV Capt Joe really excited about the project boat coming I'm sure this will help so much with the 5 projects boat I intend to repair and restore!
Finally restoring my 1988 Shoalwater Flats 18. Your videos are concise and to the point. Sharing your experience without a lot of extra dialogue. You truly value the time of your subscribers in my opinion. Looking forward to seeing you replace the deck in the project boat. Perhaps demonstrating a paint system over epoxy?
Thanks for sharing. I once knew a guy who build 12-16 foot foam RC trawlers and containeships (lower structure). I did not see the process. But I know he made a wooden "skeleton". Probably wraped it in cellofan and filled it up. So yes its foam that can create Magic...
A coworker friend of mine builds professional Soap box derby cars, He uses a large amount of foam and shapes it to the desired size of a soap box derby car and them lazy carbon fiber over the foam and when the carbon fiber is done , He uses acetone and shrinks the foam down to a baseball size. It's one of the coolest things I have ever seen ✌️
Thanks for this upload Joe, I have a 1983 formula F20 project & foaming is my next step. Though i did lay my floor first & am doing 2” relief holes to pour into. I think i am over mixing the product, i had an issue with is kicking off inconsistently… i really think that is my issue. It may have a bit a little hot and humid as i live in Florida but have seen success several times. Anyways, thanks again. If i ever have the funds one day & you’re making boats man, I’d love to own one 🤣🤘🏻
I love my full face respirator, with spectictal inserts (occupational lenses ( trifocal at arms length both top and bottom magnifying) with a papr for sanding, cartridges when using chemicals. The best advice is not just get good PPE, but do a thorough decon with the dusts. Many a NOOB wore his PPE well then got crap in his eyes and lungs when removing the gear. Be safe, have fun.
I agree,the full face respirators are great! It's funny you mention that because I will be posting a safety and ppe video this afternoon and will be featuring a 3m full face respirator. Hope you enjoy it, and thanks for watching!
Joe, if you get a chance can you do a follow op on shaving the excess off? Also is 2 lb ok for all of it or should I use 6 in the floor around the stringers? Thanks!
Sure! I will try to touch on that topic for you all.6 pound foam is rarely used in that application,it would be very strong, but it would add more weight to the boat, and would not yield as much reserve buoyancy. I hope this helps and I appreciate you watching and commenting!
this stuff has some SERIOUS power under pressure. i once saw a overly confident man try to overcome the foam after lock failure having just poured 30 or so gallons into a custom build fiberglass / steel mold, he just pressed on the lock with all he had. his efforts were worse than uneffective, as his entire body was rapidly encased in foam. you're in a real jamb when you're only option is to absolutely douse the man in acetone to dissolve the foam from his face or hell suffocate. ive seen it blow molds apart like they were made of plywood. calculating volumes is so important. great tips on venting and tilting the hull. just out of curiosity why tip stern up and not bow?
Yes, it's crazy how powerful it can be! Like an explosion in slow motion is what I tell people! Thanks for sharing your experiences with everyone. This kind of feedback is helpful and entertaining at the same time. It always just seems easier to lift or block from the stern when we are building a boat. But I suppose if the boat is on a trailer, you could tip the bow up. It really just comes down to what position is easier to achieve, I guess. Hope this helps and thanks for watching!
Your technical videos impress me and this one hit that sweet spot where interesting and timely meet. I’m about to build the fridge/freezer for our boat and have been vacillating between board foam and pour foam. What you showed here is appealing. Keep the videos coming, subscribed 🤓.
Good tips. Thanks. One thing I found is that it will shrink 20-30 % over months, if left exposed to air. I made blocks of it to mount under the deck on a small runabout I built - big fail. It needs to be sealed off.
Yes, but it's much better to have airtight chambers and bulkheads than to not have them. The Titanic would have gone down much faster than it did if it didn't have them, resulting in an even greater tragedy.The differences in small and light composite boats, verses, ocean liners, and cruise ships are vast and could be an interesting topic of discussion for sure! Thanks for watching and commenting!
Thanks! It's hard to say for sure as every repair is different, but I suppose it could be used to help reinforce the backside of a repair. You might want to do some additional research and testing on that one. I hope this lps and thanks for watching!
Fiberglass will usually bond just fine to an unsanded foam surface, but it doesn't hurt to sand it lightly, just to give it some additional bite. I hope this helps and thanks for watching!
Great video as always. I’m rebuilding a boat and have bounced back and forth on the foam thing. When pulling the boat apart I found no foam. Now I am in Canada so we may have different rules here on 18’ boats but I was wondering if you had absorption rates on these type of products? Keep the videos coming, they keep me motivated!
Interesting! I'm not sure about Canadian standards, but if it wasn't built with foam under the floor, then you shouldn't be under any requirement to replace it. Of course you could add it if you thought it would be beneficial. Sorry, I don't currently have any water absorption rates for flotation foam. Hope this helps, and thanks for watching!
I have a 1970’s 18’ StarCraft Holiday and need to replace the floor. Should I pour foam under the floor? Is it advisable to pour foam directly to the aluminum hull or is it better to lay down a vapour barrier (plastic roll) to prevent contact to the aluminum hull to avoid possible degradation to the hull?
Dear Joe, thank you for another fantastic video! I have a question if you have time: I have to fill in foam under my deck in buoyancy chambers that are attached under the deck. My boat is a flooding hull rib (searider 5.4m) and the chambers are attached to the deck, and are filled with foam (there is empty space that fills with water under them). After glassing the chambers with the deck, I plan to open a hole to the deck to poor in the foam. my question: should I be worried that the expanding foam may damage the deck if I make a (serious) mistake in the quantity needed? Or the excess foam will come out of the hole that is open (about 50mm - 2 inches diameter) during the expanding phase? It is not clear to me how much the foam pushes when it is becoming solid vs flows out of the hole all excess. That is, it might be that first flows out, and then solidifies, or that the foam both expands and solidifies at the same time, and the excess foam cannot get out of the hole. Thank you for your time and the amazing videos and knowledge sharing. Much appreciated.
I'm glad you are enjoying the videos! Each boat and each foam pour is uniquely different. It is very hard for me to say for sure what could work with each application. I can tell you that 2 part foam can be incredibly powerful!! I would recommend doing plenty of research and maybe buy some foam and do some testing and experimenting before you try to pour it into your boat. I wish I had a definite answer for you, but maybe this helps. Thanks for watching!
I have a 23 foot catamaran and there seems to be a little bit of foam in the sponsons, presumably from the factory. I know it's hard to say without seeing it, but do you think it would be beneficial to add more foam to fill in the dead space in the sponsons or more trouble than it's worth?
You mentioned that you can fibreglass over the foam once it is shaped. Which is the best resin type to use, polyester or epoxy? This foam opens up a lot of molding and fibreglassing ideas. Thanks, once again, excellent content.
I have poured some walk in coolers. Form them up pretty much like for concrete. But we filled it with 12 inch (expanded) deep pours, let it set, and pour again. Pour much more, and it will blow out the side of the form. Have you ever used Great Stuff foam for minor hole backing on a polyester patch?
Interesting! Yes, the pour foam has many possible applications for sure! No, I haven't used great stuff as a filler or backer on a boat repair, but the thought has crossed my mind. I would want to test compatability with the foam and resins first, but I think it could work. Maybe I should do a test video with great stuff and see how well it works. Thanks for watching and commenting!
Commercial freezer buildings are where polyurethane foam got its start as an insulation material. One thing to remember in this application is that the vapor drive will be from the outside towards the inside of the structure (hot to cold) and without an exterior vapor barrier there will be some moisture accumulation in the foam over time.
@@torstenhansen4308 On break-bulk freight ships, we use foam to seal the hatches for sea. We put the hatches in position, and just before we drop them, we lay a generous line of one part foam from a pressure canister, then drop the hatches into position, and dog them. The expanding foam fills all the cracks and crevices and keeps out water, even with occasional waves breaking over the hatches.
Joe quick question, I have a deep blue all the way around my boat it is about 2 2and a half foot gel coat, what do I need to buy from fiberglass warehouse to match the deep blue gel coat, I am brand new to this but cant seem to find a deep blue pigments can you help me and there is more than likely others who need different colours. it is a 19Ft Fairline Vixen and an old girl but I want her to look as good as she did when she came out of the mold.
If you can go to Sherwin Williams paints and find the closest match to your gelcoat, fiberglass warehouse can match it. They just need the Sherwin Williams code. Hope this helps and thanks for watching!
G,day Captain Joe from Sydney Australia. Great product. I have had panel bulging issues in the past with spray foam. I like white polystyrene block foam as buoyancy. Would it be approved by the U.S Coast guard? 🌏🇦🇺
Yes, panel bulging can be a problem in some foam applications. I can't say for absolute sure, but I think polystyrene block foam is fine just as long as you have plenty of volume. I hope this helps and I appreciate you watching all of the way from Australia 🇦🇺!!
How might this stuff react to any electrical wires? I guess I'm asking in the event someone did not have their wires piped in a way to shield them, would this foam irritate or cause the rubber structure to fail due to the chemicals involved? Don't ask who'd do this... lol, I'd ask you before I ever did it but this is really a cool process to see. Thanks for showing us. peace
Polyurethane foam is used routinely to insulate buildings and modern wiring does not present a problem, you can foam right over it. However, the old knob-and-tube style electrical systems should not be foamed.
Ohh, alright, I thought this might be a different form of polyurethane since it's a boat grade & required like he mentioned but I've seen a fair amount of the insulation sprayed into metal buildings but I never saw if it was sprayed on electrical wires but I suppose it could be w/o much problem. I think the old style Knob/tube style systems are about gone except for Century Homes & Buildings but I digress, is this a special grade only for boating or can you use any of it for either purpose? Thanks for sharing that, peace
I'm glad you enjoyed the video! It is hard to know how it might react with every possible kind of wire coating or other plastics, but I am inclined to think it is not going to be a problem. I have seen wire covered in foam in older boats before,and it seemed ok. Foaming in the wires will make it very difficult if not impossible to remove or replace wires, though, and I recommend running wires through a conduit if possible. I hope this helps, and I appreciate you watching!
@@diggy-d8w I ran a foam insulation business for about 15 years and what you see in the video is similar to what you have seen sprayed on metal: a 2-pound density, closed cell PUR foam. The catalyst is different in the pour foam but once cured the two are functionally the same. As for wiring on a boat, you should run everything in conduit and observe the ABYC guidelines for how many conductors you can have. This is not because the foam will damage the wire but because it will prevent heat dissipation. The ampacity rating of a conductor depends on its environment and an insulated wire can carry less current safely.
Yeah, I have seen the foam sprayed on metal buildings but I didn't pay too much attention to the wiring, whether or not it was run in conduit or a house type sheath. I was most asking if the heat generated might cause any breakdown of the rubber coating on wires? I assume it's fine or he wouldn't have done it in plastic containers? 2lb density. And I'm guessing that you might be able to mix it so it's a denser product or more full of air? I don't have any plans for this as of now but I like to know about things just in case it comes up. Thank you for adding more to this thread & to our Boat maker Host, Mr Fish Bump TV. peace
It is a 2 pound density polyurethane closed cell foam that we used in the video.I hear what you are saying and I understand people having concerns about pour foam, as many people have had bad experiences with it. I am pretty sure that many of those problems are from the use of poor quality foam and poor application of the foam. Modern foam formulas are much better than some of the early foams, in my opinion. In some cases we are required to use it here in the states by law, so I thought it would be a good topic to cover here on the channel for those that are possibly interested in using it on one project or another. Our 21 ft project boat will need foam flotation under the floor, so hopefully, I can share some more tips with you all on a full-size foam pour, with quality results. As always I appreciate you watching and commenting!
Questions sir: Would the foam make a boat more quiet? In other words, would a boat at anchor with waves slapping against the hull be more quiet inside than a hull without foam? Of course, as I watched your video I realized that the weight of the foam must be calculated in the buoyancy / weight capacity of the boat
Yes, in my experience, a foam filled boat is going to be quieter that a non foam filled boat. That is a plus in my opinion, especially for a fishing boat! I hope this helps and I appreciate you watching!
Careful going in reverse with that mixer. You might unmix the stuff.... lol Anyway..... Used this stuff yesterday under the floor of my restoration project for the first time. Then this video shows up.... I slightly overfilled it, but I cut the excess off with a normal hand wood saw, easy as.
It is a high-quality closed cell polyurethane foam that is supposed to have a very low moisture absorption rate. But almost all foams will absorb some water with long-term exposure. I hope this helps and thanks for watching!
Hi Joe, now it´s past Helene and Wednesday morning before Milton. My thoughts with You, God bless, Stay Safe. Hope to see You back well when this nightmare is over. I would miss Your videos. THXs, the Gel Coat lessons were excellent.
Thanks for checking in with us! Yes, what a crazy storm season. It looks like we are going to be well outside of the affected area, but our thoughts and prayers go out to the poor folks that are in the storms path.
Thanks for another great video, and I love it when you do things real time so please don’t start to do any of these quick-cut-with-music kind of videos. Is this regular PU-foam and are you able to lay fiberglass with polyester resin over that? And in the end gelcoat it.
Glad you are enjoying our editing style! Yes, it is regular 2 part polyurethane foam. Polyester, vinyl ester and epoxy resins can all work with this kind of foam with no problem. I hope this helps and thanks for watching!
Hi Captain Joe!
I am sorry but I am going to have to ask you to stop making these videos. Now I want to build an entire boat and my wife is not happy with me!
Seriously though your content is some of the best anywhere on the Internet! Thank you yet again for sharing your extensive experience with all of us!
Take care and all the best from California! 💛
Haha, you had me going there! Sorry to get you in trouble with the wife, maybe you can build her something with your new skills, maybe soften her up a little bit! You for sure need to name the boat after her if you build one! Thanks for watching from beautiful California!
I started watching your channel to learn about gel coat for my RV. I’m staying because I’m learning a ton that I feel like will actually be beneficial in my RV. Good channel.
This channel is the best site for practical, all on one site information I know of. I have worked with fiberglass for decades, but still learn some new stuff here. Good information, and well presented.
That's fantastic! Welcome to the channel, and thanks for watching!
Welcome to the channel, and thanks for watching and commenting!
I am doing the exact same thing.. I own a rv repair company.. I started watching this to learn better water proofing ideas.. and have found so much technology to use here it is hard to go away..
@Ic9us Glad you are finding some good helpful info here on the channel! Thanks for watching
Your son is a really good camera operator.
Thank you! I am very proud of his work, and I will be sure that he sees your comment!
I am digging this out of my 1986 Larson Cuddy right now. BRUTAL! Thanks for another great video!!
Right on! Glad to help! Thanks for watching
next month i'll start a project where I have to remove the old foam and put another one new, into a small boat, and the timing of this video couldn't be more perfect, it saved me so much time of research on the internet.
huge THX!!!
That's awesome! Glad to help!
Thank you for the very thorough lesson on foam! Now I need a project to foam! As always…. Thank you for sharing your time and many talents Captain Joe. All the best. Chuck
Haha, I hear ya! Glad you enjoyed the video, and as always, thanks so much for watching!
Thank you for these videos they are brilliant .. I can't wait to use alot of these techniques as I rebuild a couple of my own project boats
Wow, thanks so much! I wish you all the best with your projects!
Thanks Capt. Joe. I am about to build a keel for my sail boat and your videos have been soooo helpful.
Glad to help! Thanks for watching!
Hi Joe ! I noticed that the foam appears to be 2 lb. density. You can lower the density by adding a small amount of water to the mix. It will do it by making the internal bubbles a little larger. It will increase the volume of the mix. It's worth experimenting with. Just a tip. 😎
Cool video. I’ve been rehabbing a boat floor and gunnels. I’ve been using a cubic inch calculator to figure out the void size. I divide that number by 25. I place the 2 jugs in very warm water the prior to the pour to get the temperature up. I use a heat gun in the space to warm it up a bit. In the tight spaces where I can’t tip a cup, I put the 2 parts in a zip lock bag, mix it by squishing the stuff around, then I cut the tip of a corner of the bag and drain mix the hole in floor.
Perfect timing, just finishing installing stringers after removing close to 300lbs of waterlogged foam and rotten plywood from a 16' boat. Watched a half dozen of your fiberglass videos and am ready to install the floor and foam soon. Still trying to decide between peanut butter and marine adhesive for securing the deck. Its all polyester resin layed over plywood, marine adhesive and stainless screws seems to be the easier diy route with only one person.
Awesome, glad you enjoyed the video! I have personally always had good success with 3m 5200 and stainless screws for deck installations. That is what we did when installing the deck on our 29. I have some videos in that series showing the process and will be putting a new floor in our Blazer project boat soon. I hope this helps, and I appreciate you watching and commenting!
Good work, Captain Joe, my dad was a sculptor and he always used that stuff. It was fun to put it in a paper Coca-Cola glass and put a straw in it as a fake fresh pour of fountain Coke. Not to drink, just to look at.
Thanks! Appreciate you sharing and watching!
Foam is so powerful it can also be used to easily re-level sidewalks / slabs of concrete, good stuff here!
Capt Joe fish bump family your timing is right on putting in my floor this video answered many questions I had about this product would like to see you guys fiberglassing over these products soon and thanks again your time Fish bump family appreciate y'all!
Awesome! I'm glad the video was helpful and came at a good time! I might do a video on fiberglassing over polyurethane foam for you all soon. I will also be pouring and glassing foam on our upcoming project boat, so stay tuned and thanks for watching!
@@FishBumpTV Capt Joe really excited about the project boat coming I'm sure this will help so much with the 5 projects boat I intend to repair and restore!
Finally restoring my 1988 Shoalwater Flats 18. Your videos are concise and to the point. Sharing your experience without a lot of extra dialogue. You truly value the time of your subscribers in my opinion. Looking forward to seeing you replace the deck in the project boat. Perhaps demonstrating a paint system over epoxy?
Thanks for sharing. I once knew a guy who build 12-16 foot foam RC trawlers and containeships (lower structure). I did not see the process. But I know he made a wooden "skeleton". Probably wraped it in cellofan and filled it up. So yes its foam that can create Magic...
Interesting! Thanks for sharing and for watching!
A coworker friend of mine builds professional Soap box derby cars, He uses a large amount of foam and shapes it to the desired size of a soap box derby car and them lazy carbon fiber over the foam and when the carbon fiber is done , He uses acetone and shrinks the foam down to a baseball size. It's one of the coolest things I have ever seen ✌️
Very cool! Thanks for sharing and watching!
I really appreciate your effort. Learning a lot from your explanations. You sure reduce my fear of attempting these projects.
I'm glad to hear that! Thanks for watching and commenting!
Awesome video Joe!! Cutting out some foam to replace the rigging tunnel and plywood strips in my 63 whaler. I am pretty nervous but this helped a lot.
Thanks! Glad to help!
I’m really glad you did this one I got to pour some in my boat
Thanks. I hope the video was helpful! I will be doing quite a bit of foam pouring on our project boat, so stay tuned!
I hope this episode makes your channel blow up in a good way. Thanks again for your knowledge and sharing once again
Haha, I hope so too!!
Thanks a lot. Enjoyed the experiment 😃👌I wish I could build one non sinkable boat for fishing 🚤🎣 from this materials one day😊
Thanks for this upload Joe, I have a 1983 formula F20 project & foaming is my next step. Though i did lay my floor first & am doing 2” relief holes to pour into.
I think i am over mixing the product, i had an issue with is kicking off inconsistently… i really think that is my issue. It may have a bit a little hot and humid as i live in Florida but have seen success several times.
Anyways, thanks again.
If i ever have the funds one day & you’re making boats man, I’d love to own one 🤣🤘🏻
Glad to help! Thanks for watching and I wish you the very best with your project boat!
I love my full face respirator, with spectictal inserts (occupational lenses ( trifocal at arms length both top and bottom magnifying) with a papr for sanding, cartridges when using chemicals. The best advice is not just get good PPE, but do a thorough decon with the dusts. Many a NOOB wore his PPE well then got crap in his eyes and lungs when removing the gear.
Be safe, have fun.
I agree,the full face respirators are great! It's funny you mention that because I will be posting a safety and ppe video this afternoon and will be featuring a 3m full face respirator. Hope you enjoy it, and thanks for watching!
Joe, if you get a chance can you do a follow op on shaving the excess off? Also is 2 lb ok for all of it or should I use 6 in the floor around the stringers? Thanks!
Sure! I will try to touch on that topic for you all.6 pound foam is rarely used in that application,it would be very strong, but it would add more weight to the boat, and would not yield as much reserve buoyancy. I hope this helps and I appreciate you watching and commenting!
Thanks again, Captain Joe ,another fantastic video.
You are very welcome! Thanks for watching and commenting!
this stuff has some SERIOUS power under pressure. i once saw a overly confident man try to overcome the foam after lock failure having just poured 30 or so gallons into a custom build fiberglass / steel mold, he just pressed on the lock with all he had. his efforts were worse than uneffective, as his entire body was rapidly encased in foam. you're in a real jamb when you're only option is to absolutely douse the man in acetone to dissolve the foam from his face or hell suffocate. ive seen it blow molds apart like they were made of plywood. calculating volumes is so important. great tips on venting and tilting the hull. just out of curiosity why tip stern up and not bow?
Yes, it's crazy how powerful it can be! Like an explosion in slow motion is what I tell people! Thanks for sharing your experiences with everyone. This kind of feedback is helpful and entertaining at the same time. It always just seems easier to lift or block from the stern when we are building a boat. But I suppose if the boat is on a trailer, you could tip the bow up. It really just comes down to what position is easier to achieve, I guess. Hope this helps and thanks for watching!
Your technical videos impress me and this one hit that sweet spot where interesting and timely meet. I’m about to build the fridge/freezer for our boat and have been vacillating between board foam and pour foam. What you showed here is appealing. Keep the videos coming, subscribed 🤓.
Wow, thanks! Welcome to the channel and I wish you the very best with your project!
Good tips. Thanks. One thing I found is that it will shrink 20-30 % over months, if left exposed to air. I made blocks of it to mount under the deck on a small runabout I built - big fail. It needs to be sealed off.
these are great videos 👍👍👍👍
Wow, thanks!
Lol. The Titanic had airtight chambers too.
Love your videos
Yes, but it's much better to have airtight chambers and bulkheads than to not have them. The Titanic would have gone down much faster than it did if it didn't have them, resulting in an even greater tragedy.The differences in small and light composite boats, verses, ocean liners, and cruise ships are vast and could be an interesting topic of discussion for sure! Thanks for watching and commenting!
Very informative, first rate content! Thank you!
Glad it was helpful! Appreciate you watching!
execellant job cameraman !!!!!!!
Thanks! I will be sure to tell him!
Another GREAT Video. Thanks!
Thanks! Glad you enjoyed it!
Very Very Well Done! Thank you!😀 Your son does a great job.🙂 Subscribed
Thank you very much, and welcome to the channel!
Cool stuff 😊
Thanks!
Great info, thanks.
Glad it was helpful! Thanks for watching!
Excellent video. Could this be used to repair a hole in a boat where you cannot get to do a 2 sided repair?
Thanks! It's hard to say for sure as every repair is different, but I suppose it could be used to help reinforce the backside of a repair. You might want to do some additional research and testing on that one. I hope this lps and thanks for watching!
great videos.
Glad you like them! Thanks for watching
Great video and excellent camera work👍
Thank you very much! I will be sure to tell my Son that you said so!
Great video ! ❤
Thank you!!
Thanks joe a question for you sir , if you glassed poured foam would you sand it first, or would polyester stick to the shine of the outer layer?
Fiberglass will usually bond just fine to an unsanded foam surface, but it doesn't hurt to sand it lightly, just to give it some additional bite. I hope this helps and thanks for watching!
Great video as always. I’m rebuilding a boat and have bounced back and forth on the foam thing. When pulling the boat apart I found no foam. Now I am in Canada so we may have different rules here on 18’ boats but I was wondering if you had absorption rates on these type of products? Keep the videos coming, they keep me motivated!
Interesting! I'm not sure about Canadian standards, but if it wasn't built with foam under the floor, then you shouldn't be under any requirement to replace it. Of course you could add it if you thought it would be beneficial. Sorry, I don't currently have any water absorption rates for flotation foam. Hope this helps, and thanks for watching!
Thank you Love your videos
You are so welcome! Thanks for watching!
really useful
Glad it was helpful! Thanks for watching!
When adding foam under the floors and seats of a 12 ft sailboat, would you recommend the 2,4,or 6 lb foam?
2 lb is the standard for flotation foam. I hope this helps, and thanks for watching!
If you don't use enough foam can you pour more on top?
Yes you can. Polyurethane foam adheres well to itself (and to everything else)
Sure, that will work with no problem. I will be pouring foam on a full scale on our project boat soon, so stay tuned, and thanks for watching!
I have a 1970’s 18’ StarCraft Holiday and need to replace the floor. Should I pour foam under the floor? Is it advisable to pour foam directly to the aluminum hull or is it better to lay down a vapour barrier (plastic roll) to prevent contact to the aluminum hull to avoid possible degradation to the hull?
Dear Joe, thank you for another fantastic video! I have a question if you have time: I have to fill in foam under my deck in buoyancy chambers that are attached under the deck. My boat is a flooding hull rib (searider 5.4m) and the chambers are attached to the deck, and are filled with foam (there is empty space that fills with water under them). After glassing the chambers with the deck, I plan to open a hole to the deck to poor in the foam.
my question: should I be worried that the expanding foam may damage the deck if I make a (serious) mistake in the quantity needed? Or the excess foam will come out of the hole that is open (about 50mm - 2 inches diameter) during the expanding phase? It is not clear to me how much the foam pushes when it is becoming solid vs flows out of the hole all excess. That is, it might be that first flows out, and then solidifies, or that the foam both expands and solidifies at the same time, and the excess foam cannot get out of the hole.
Thank you for your time and the amazing videos and knowledge sharing. Much appreciated.
I'm glad you are enjoying the videos! Each boat and each foam pour is uniquely different. It is very hard for me to say for sure what could work with each application. I can tell you that 2 part foam can be incredibly powerful!! I would recommend doing plenty of research and maybe buy some foam and do some testing and experimenting before you try to pour it into your boat. I wish I had a definite answer for you, but maybe this helps. Thanks for watching!
@@FishBumpTV thank you very much, yes it does help a lot! Greetings from Australia
Thanks Capt Joe. Keeping the fantastic content coming!
You got it! Thanks for watching!
I have a 23 foot catamaran and there seems to be a little bit of foam in the sponsons, presumably from the factory. I know it's hard to say without seeing it, but do you think it would be beneficial to add more foam to fill in the dead space in the sponsons or more trouble than it's worth?
You mentioned that you can fibreglass over the foam once it is shaped. Which is the best resin type to use, polyester or epoxy? This foam opens up a lot of molding and fibreglassing ideas. Thanks, once again, excellent content.
Either resin can be used. It is compatible with polyester, vinyl ester and epoxy.
Yes, you can use polyester, vinyl ester, or epoxy resin when using polyurethane pour foam. Hope this helps and thanks for watching!
Hi, Can you fiberglass over the cured foam ? Thanks !!
Yes you can. I have seen some pretty cool stuff made by shaping the foam then fiberglassing over it.
Sure, and it's compatible with polyester, vinyl ester and epoxy. Hope this helps and thanks for watching!
I’ve owned a couple of fiberglass drift boats. I think they are the only boats under 21’ that aren’t required to have foam flotation.
I have poured some walk in coolers. Form them up pretty much like for concrete. But we filled it with 12 inch (expanded) deep pours, let it set, and pour again. Pour much more, and it will blow out the side of the form.
Have you ever used Great Stuff foam for minor hole backing on a polyester patch?
Interesting! Yes, the pour foam has many possible applications for sure! No, I haven't used great stuff as a filler or backer on a boat repair, but the thought has crossed my mind. I would want to test compatability with the foam and resins first, but I think it could work. Maybe I should do a test video with great stuff and see how well it works. Thanks for watching and commenting!
Commercial freezer buildings are where polyurethane foam got its start as an insulation material. One thing to remember in this application is that the vapor drive will be from the outside towards the inside of the structure (hot to cold) and without an exterior vapor barrier there will be some moisture accumulation in the foam over time.
@@torstenhansen4308 On break-bulk freight ships, we use foam to seal the hatches for sea. We put the hatches in position, and just before we drop them, we lay a generous line of one part foam from a pressure canister, then drop the hatches into position, and dog them. The expanding foam fills all the cracks and crevices and keeps out water, even with occasional waves breaking over the hatches.
Joe quick question, I have a deep blue all the way around my boat it is about 2 2and a half foot gel coat, what do I need to buy from fiberglass warehouse to match the deep blue gel coat, I am brand new to this but cant seem to find a deep blue pigments can you help me and there is more than likely others who need different colours. it is a 19Ft Fairline Vixen and an old girl but I want her to look as good as she did when she came out of the mold.
If you can go to Sherwin Williams paints and find the closest match to your gelcoat, fiberglass warehouse can match it. They just need the Sherwin Williams code. Hope this helps and thanks for watching!
@@FishBumpTV Thank you Joe that was very helpful.
G,day Captain Joe from Sydney Australia. Great product. I have had panel bulging issues in the past with spray foam. I like white polystyrene block foam as buoyancy. Would it be approved by the U.S Coast guard?
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Yes, panel bulging can be a problem in some foam applications. I can't say for absolute sure, but I think polystyrene block foam is fine just as long as you have plenty of volume. I hope this helps and I appreciate you watching all of the way from Australia 🇦🇺!!
How might this stuff react to any electrical wires? I guess I'm asking in the event someone did not have their wires piped in
a way to shield them, would this foam irritate or cause the rubber structure to fail due to the chemicals involved? Don't ask
who'd do this... lol, I'd ask you before I ever did it but this is really a cool process to see. Thanks for showing us. peace
Polyurethane foam is used routinely to insulate buildings and modern wiring does not present a problem, you can foam right over it. However, the old knob-and-tube style electrical systems should not be foamed.
Ohh, alright, I thought this might be a different form of polyurethane since it's a boat grade & required like he mentioned
but I've seen a fair amount of the insulation sprayed into metal buildings but I never saw if it was sprayed on electrical
wires but I suppose it could be w/o much problem. I think the old style Knob/tube style systems are about gone
except for Century Homes & Buildings but I digress, is this a special grade only for boating or can you use any of
it for either purpose? Thanks for sharing that, peace
I'm glad you enjoyed the video! It is hard to know how it might react with every possible kind of wire coating or other plastics, but I am inclined to think it is not going to be a problem. I have seen wire covered in foam in older boats before,and it seemed ok. Foaming in the wires will make it very difficult if not impossible to remove or replace wires, though, and I recommend running wires through a conduit if possible. I hope this helps, and I appreciate you watching!
@@diggy-d8w I ran a foam insulation business for about 15 years and what you see in the video is similar to what you have seen sprayed on metal: a 2-pound density, closed cell PUR foam. The catalyst is different in the pour foam but once cured the two are functionally the same. As for wiring on a boat, you should run everything in conduit and observe the ABYC guidelines for how many conductors you can have. This is not because the foam will damage the wire but because it will prevent heat dissipation. The ampacity rating of a conductor depends on its environment and an insulated wire can carry less current safely.
Yeah, I have seen the foam sprayed on metal buildings but I didn't pay too much attention to the wiring, whether or not
it was run in conduit or a house type sheath. I was most asking if the heat generated might cause any breakdown of
the rubber coating on wires? I assume it's fine or he wouldn't have done it in plastic containers? 2lb density. And I'm
guessing that you might be able to mix it so it's a denser product or more full of air? I don't have any plans for this as
of now but I like to know about things just in case it comes up. Thank you for adding more to this thread & to our
Boat maker Host, Mr Fish Bump TV. peace
Wondering what type of foam it is urethane? I don't use it. I want closed bulkhead storage floatation.
It is a 2 pound density polyurethane closed cell foam that we used in the video.I hear what you are saying and I understand people having concerns about pour foam, as many people have had bad experiences with it. I am pretty sure that many of those problems are from the use of poor quality foam and poor application of the foam. Modern foam formulas are much better than some of the early foams, in my opinion. In some cases we are required to use it here in the states by law, so I thought it would be a good topic to cover here on the channel for those that are possibly interested in using it on one project or another. Our 21 ft project boat will need foam flotation under the floor, so hopefully, I can share some more tips with you all on a full-size foam pour, with quality results. As always I appreciate you watching and commenting!
What about floatation for a wooden boat?
Questions sir: Would the foam make a boat more quiet? In other words, would a boat at anchor with waves slapping against the hull be more quiet inside than a hull without foam? Of course, as I watched your video I realized that the weight of the foam must be calculated in the buoyancy / weight capacity of the boat
Yes, in my experience, a foam filled boat is going to be quieter that a non foam filled boat. That is a plus in my opinion, especially for a fishing boat! I hope this helps and I appreciate you watching!
Careful going in reverse with that mixer. You might unmix the stuff.... lol
Anyway..... Used this stuff yesterday under the floor of my restoration project for the first time. Then this video shows up....
I slightly overfilled it, but I cut the excess off with a normal hand wood saw, easy as.
Haha, yep!! Hope your project goes well for you!
Is this foam obsorve water
It is a high-quality closed cell polyurethane foam that is supposed to have a very low moisture absorption rate. But almost all foams will absorb some water with long-term exposure. I hope this helps and thanks for watching!
I hope this has never been used as a torture/execution technique in a war.... :O
Yikes! That would not be good!
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Thanks!
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Appreciate you watching!
I use one mixcup and use a scale and calculator to measure out the 2 or 3 parts together. Must use your brain more but less waste in the end.
Joe you are a mater at this you need to start building again
Wow, thanks! I am sure we will build some more boats, just not sure when or how big. Appreciate you watching!
Hi Joe, now it´s past Helene and Wednesday morning before Milton. My thoughts with You, God bless, Stay Safe. Hope to see You back well when this nightmare is over. I would miss Your videos. THXs, the Gel Coat lessons were excellent.
Thanks for checking in with us! Yes, what a crazy storm season. It looks like we are going to be well outside of the affected area, but our thoughts and prayers go out to the poor folks that are in the storms path.
Thanks only the boxes were s poiled, not boats)
Yep, no boats were harmed in the making of this video! Thanks for watching and commenting!
Thanks for another great video, and I love it when you do things real time so please don’t start to do any of these quick-cut-with-music kind of videos. Is this regular PU-foam and are you able to lay fiberglass with polyester resin over that? And in the end gelcoat it.
Glad you are enjoying our editing style! Yes, it is regular 2 part polyurethane foam. Polyester, vinyl ester and epoxy resins can all work with this kind of foam with no problem. I hope this helps and thanks for watching!
Is it sticky? 🤔 maybe I should wear some gloves 🤔 😬
Haha! Yes, and yes! Thanks for watching!
@FishBumpTV cool, I'm glad you saw I was kidding with you and not being a rude person. Cheers 🍻