How to Undercoat Your Car (RUST PREVENTION)
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- เผยแพร่เมื่อ 8 มิ.ย. 2024
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In this video, I clean and protect the undercarriage of my little bro’s Golf; Julia. I used a few products to get it clean, and I’ve even showed you before how to do it.
How to Degrease Your Wheel Wells ▶︎ • How to Degrease Your W...
We further the procedure after degreasing the underside of the car, by following it up with some 3M rubberized undercoat. We picked up a 6 pack to do each of the wheel wells, and the undercarriage of the car.
The entire frame was essentially coated, and the main parts we didn’t want to undercoat is any rotating part, the engine, the transmission, the exhaust, the brakes, the wheels, and anything that would get excessively hot.
By doing this, we can further the life of the car, by preventing the vehicle from rusting. Ideally, we would want the mechanical parts of the car to die on us, before the body does, hence this rust prevention.
Products Used 🛠
3M Rubberized Undercoat ▶︎ amzn.to/2gBuAfU
Meguairs Super Degreaser ▶︎ amzn.to/2gBx1iN
Hog Hair Brush ▶︎ amzn.to/2gzLVtx
Tape and Drape ▶︎ amzn.to/2gcrxhD
Olfa Stainless Steel Scissors ▶︎ amzn.to/2gBq0yq
3M Automotive Grade Tape ▶︎ amzn.to/2gcxQRY
If you have any questions regarding the video, you know what to do. Thanks for watching!! :)
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Never put rubberized undercoats, especially in multiple layers. Rust will occur underneath and it will very difficult to repair afterwards
O GS only if you haven’t treated the rust and ensured it’s 100% dry. We had a 1971 Triumph GT6 in for restoration years ago and it had been waxoyled since new (every year) the chassis was immaculate.
i think youre wrong... if the surface is rust free and painted over before applying rubber coating it should not rust... the rubber coating is there to protect the paint from chipping or cracking which would make the surface rust... however obviously if you already have rust underneath then putting anything on it at that point is useless
@@e36fanatics Why any sane man would throw rubberized at clean metal in time of epoxy primers.
@@e36fanatics I think he makes a good point. There was a problem with polymer coated rebar in construction. The problem wasn't actually that everything would rust, but that rust would be focused in one place and literally cut the metal in half on one spot while everything else looks fine.
I'm not sure whether to do this to my car or not, but his WV seemed to already have a nice protective layer from the factory. I have Škoda with probably the same coating from the factory, and after 15 years of salty waters and harsh winters nothing happened to it. So I'm not sure if this is really necessary.
Wrong... If you spray this over rust or bare metal then yes it will rust, obviously. You need to sand and prep the area to be coated first. If you have any bare areas you need to prime them before applying this rubber coating. The problem is lazy dumbass people that think they can just spray this over existing rust and bare metal.
This exactly product was added to my truck when it was new and it doesn't stop rust. If any area is open from the coating (such as the top of the frame since you can't reach that with the body on) then it will get moisture and crap behind the coating and it will speed up rusting. Eventually the rust started to bleed through my coating so I removed it all and found a lot of rust formed behind it. Afterwards I Por15'ed it to get rid of the rust.
Yeah. I saw another video similar issue. These rubberized coating are not really a good idea.
What would you guys recommend?
Did the POr 15 seem to hold up?
POR 15 is the only way to go. Rubberized coatings trap moisture . Its the worst thing you can do.
Works very well for basement concrete leaks to stop water from coming in
Is it just me or is the sound of the spray can super satisfying
Nice work. With spraying mostly everything it seems to be the prep work that makes the job.
your videos are clear and practical and I think they are great.
This video is very informative. Was wondering if the exhaust pipe line should be coated too. You answered my question! Thanks! Liked your video man!
Thank you for making this video!
This way a big help. Thank you
Haven't seen a video as informative and helpful as this one in a long time. You just got yourself another subscriber. Really great job on this video! Thank you so much
You are being sarcastic, right?? There are literally thousands of more informative and helpful videos out there, even hundreds that actually show how to do it correctly.... This is just a quick coverup, a makeup if you will, before putting up the car for sale.....
keep em coming man !!!
thxs man for taking out your time...how would you advice doing the the actual under car, by yourself at home?
Works very well for concrete basement leaks and asphalt sealant
This was posted in Nov. 2016, did you post an update to this video? Can you provide a link?
Car is in the bone yard rusting
Great job mate
I've been here since 10,000 subs its great to see you come so far Milan 👌🏼keep it up bro
I've been here since 100
ive been here since 10
Joe Schembri been here since -10
i pulled him out of the womb
For my Volvo 240, the gas tank cover area had all the rubberized undercoating chipped off so I used permatex rubberized undercoating to re undercoat it. It’s held up very well
Nice video but in my opinion rubberized undercoating allows salt water to enter behind a rock chip and rust the panel from behind you won't be able to notice until it starts to bubble, I think it's better to use an oil based undercoating 2 times during the winter months like NH oil and fluid film and wash off in the summer. Por 15 and the winter oil based undercoatings work really well together. None of our family vehicles have any rust before I knew about por 15 or fluid film or nh oil our vehicles were simply undercoated with used engine oil 2 times a year during the winter months I do live in Vancouver BC and it doesn't snow too much here however this year we beat Edmonton it doesn't hurt to protect your vehicle regardless of how much snow you get where you live
gurjinder singh which brand do you recommend?
Nice Job!
The rubber traps moisture, go with honey goo or some chassis saver paint (spray it)
THanks for this!
hey man I just started watching your videos they are really good. I have a idea for a video which will help a lot of us with golf's, how to restore your door cards, would love to see how you do it. your videos have helped me a lot thank you, just stayed up until 1:15 watching all the golf videos
next time remove the black plastic inner fender
Bjarni Seerup, Inner wheel arch you mean lol bloody yanks.
Already done in previous episode !
there's some car love right here...it's a beautiful thing.
Good job
Thanks for informative video
Muneer from Pakistan
PRO TIP!! Dawn dish washing soap works just as well if not better than most degreasers.
Living in Denmark where rustproofing cars is very common it is normal to clean up the whole underside of the car with a high pressure cleaner, after that you apply a layer of rustproofing paint, I think this has oil and additives in it as well. After that you spray it with Tectyl or Dinotrol, which ever brand you like. Brand is not that important, doing it properly and making sure that the factory coat can work with the product is more important. Almost all brands sold in Northern Europe is either oil or wax based and will last about two years. When the first layer of rustproofing has been applies you dont really need to worry about how many layers of the black coat you apply afterwards, two coats are standard to protect against rocks and dirt and also sound proofs the car. To finish you drill holes in certain places and get a cap attached to a hose for the spray can and apply a product for the insides of the doors, the hood, etc. Then you apply rubber caps in the holes you just drilled and filled. At least here in the north it is essential to have your car protected and most cars dont have rust problems even though 3/4 of the years is cold and rainy. 1/4 of the year a lot of salt is on the road, and I mean LOTS. Mainly Japanese cars will rust due to being cheaper and not well suited for the climate, however I would say after owning to Toyotas that they are much more reliable and after protection there seems to be no issues. Good luck with your rust protection and remember to wear a mask :)
I love your video, my question is that does washing my car remove the undercoat
love the video thanks for idea
Great video!
Cheers buddy :)
This is a superficial treatment because the rust happens on the interior of doors, the frame, and fenders. The best treatment is an oil/wax based product that never hardens but stays flexible and wet. Undercoatings tend to dry, crack and then trap salt and moisture under the coating and actually accurate the damage
Thanks for Idea 👍.
I've used Dinitrol wax based products including behind the arch liners. Not a big fan of rubberised coatings as they hold moisture if the covering gets compromised for some reason and can rust the steel away behind without you knowing until it's too late.
Nice video:)
Easy to watch/take in/and apply/ enjoyed watching and learning...keep up the good work Milan....all the best from Bonnie Scotland....!
Thank you for this video, should I remove rust br=efore spraying ? Like with Ospho stuff, This is my first video from you :-)) I was just prep to spray stuff on my travel trailer and also noticed some spots that are rusting under my new truck,
I've got little rust on flor on my mk3 Golf, i will cut it and weld new metal. So will this work as a protection? (We dont have a lot of snow where I live, once in every 5-6years).
Fabulous Just FABULOUS.
Good to be so thorough on cleaning. Throw some tape on bolts, nuts, brake fittings so they're easier to work with and it'll look clean when you're done and unmasked too :)
I'd rather take the few minutes of prep work beforehand, to get very nice results later :)
Thanks bro ive been looking for the name of this spray forever
No problem brother!! 👊👊👊
Really need to do this on my explorer. 17 years of winters has rusted everything on it :/ Ill need like 10 cans at least probably to do it tho
The real test for any rust prevention or treatment is how it performs over the long term. We need to see the vehicle before treatment, then after say a year , then two years & five years etc.
Also, how does it react with rubber seals ? What about applying rust converter first?
I'm so glad to see smart people maming comments against this stuff. He doesn't know what he's doing but he'll learn later on down the road!
Where do I find your video on undercoating the fenders? Did you post a video for that?
I see mixed reviews in the comment section. I just bought a 2019 AWD Rav4. I live in NNY on the border of Canada. We have very rough winters and a ton of lake effect snow from Lake Ontario. What would a solid recommendation be for undercoating my vehicle?
how about using a salt remover and rust converter before the 3m? couldn't the 3M hide it rusting underneath then Rot out without warning?
This is something I've always wanted to do to all of my vehicles but never got around to it. It's gunna happen in my current car though, that's for sure. Big plans.
Living in Maine, I wanted to protect a van that I purchased last fall. It seemed to do a pretty good job until snow started to melt, and then it simply did a poor job. Now I was careful to clean, sand or anything else that needed to be done BEFORE applying this. Areas of the van that had no rust before, now have rust, it started to flake in spots... and now I'm looking to do it again. I spent a fortune on 3M last fall, but now need to do it again and looking for perhaps another brand. Has anyone else had this issue?
Good idea
you think using dulpi color bed armour would work for under coating the bottom of then car or what product would u reccomend
What is the advantage of using this product as opposed to getting a Ziebart Rhino Lining?
So its been a few years since this video and coating.. how is that rubberized coating holding up? Any rust????
but rust is natural weight reduction
Pavlo95 actually surface rust adds weight
Pavlo95 he was being facetious.. like stickers add 50 whp
Pavlo95 same as a short throw dipstick.
rust is lighter then carbon fibre
Judokus Quark just have a hole get 100 hp
why not remove wheel arch liners where the water will sit?
Cool
I thought that aswell when I do it I'm remove liner and spray all
He went over it in the video.. He already did the inside of it with an undercoat...
For those who think that rubberized undercoats isin't good....
If you have rust crawling under the undercoating, the factory coating was already broken, and likely already rusting when you coated it. If the undercoating was not there, the rust would be crawling under the paint instead. If the undercoating was applied to an unbroken, uncorroded, and painted or E-coated (as in the frame) surface, the undercoating can do no harm, it will only help. Cheap crap may just fall off and become useless, but it won't cause harm in the process.
Stopping rust before it starts. Seriously, no common road debris will penetrate the factory underbody coatings. This is the stuff that is applied to the underbody and lower body (that texture on the rocker panels, etc.) that I'm talking about here. It takes a pretty serious scrape, nick, gouge, or impact to penetrate it. At that point, sure - corrosion will start, but this is preferable to every stone that hits the vehicle starting hundreds of small rust spots. Look at cars in a parking lot some time. Look at the front bumpers and hoods and see how blasted they are. Then look at the rockers or any place where you see texture under the paint. My friend has a 1985 MR2 that was undercoated very early in its life, and the underbody is flawless. If you know these cars (and any pre-1990 Toyota) you know they're rust magnets.
I would get a rust Inhibitor rubberized spray I know Eastwood sells some sounds like best of both worlds just incase if moisture gets back there
does this act like a soundproof for the wheel wells too?
I live in Denver so I don't have to really worry all that much about rust but for my Grandmother in the Northeast USA I make sure she uses Krown. Oil beats this stuff everyday.
Muy bueno el spray
hey chris long time subscriber to both channels , just a quick question ... when doing the wheel walls is it okay to spray the break or fuel lines ? I really cant see there being a problem doing it but when I look it up its recommended to tape it off.
what do you suggest ? thanks love from Australia !
As long as you clean it and prep it prior to spraying, you can spray nearly anything with this rubberized undercoating. You can coat the wheel wells, rocker panels, floor pans, backside of body panels, brake lines, fuel lines, etc. As long as it doesn't rotate and doesn't get hot, you're good :)
Will the truck bed liner from rustoleum work as an under coat as well?
Tell ya the truth, I think it should. I put truck bedliner coating on the underside of my two fenders I had to replace on my 02 Dodge Dakota regular cab 4 wheel drive truck. Funny thing though about Chrysler Corporation cars and trucks, seems their bodies just don't at all hold up for some strange reason, seems they disintegrate really fast. Their engines run forever, just the bodies don't hold up very well.
I like the original blue color it was very good looking.
Young man, can you apply it to the entire side of your own bottom? You see my bottom has lots of brown spots from my granny sprays and spraying liquid from my neighbor Bob's hose doesn't release it! Is it true that you can use the 3M Rubberized instead of a rubber? Please respond.
Muito bom, pena que no Brasil a 3M não disponibiliza!
Nem um esforço para traduzir em inglês??
Nice, I use Por-15
Hello I do not find in Italy the 3m, can I use plasti dip or what ? Thanks
You painted the brake lines here in ireland we have a thing called nct where your car goes in for inspection every 3 years if it's new when you bought it then every 2 years after that then every year when it's over 10 years old and that would fail it they would make you fit all new brake pipes and bring it in for a re test ( it's a government thing u have to do it or you get fined) its €56 for the test and €28 for a re test if it fails and they make it fail most of the time by Hammering a screwdriver into the wheel arches happened to me 2 weeks ago.
That sounds awful, if our government ever gets that invasive idk what I’d do
Hi, first time car owner here (Kia Picanto 2017) and hoping to maintain it with the best of my abilities. When I'm about to clean the wheel wells, I saw holes on both sides in the front maybe 2 inches in diameter beside the car suspension. What are these holes? It appears to be unused holes where wires should pass through. Do I need to cover them when washing and avoid water to get in the engine area maybe? Thank you so much for your help.
no need to cover those holes. I liked this video but oil works better than undercoat. I would still use undercoat to control noise though.
Take out the wheel liners!!!
How you gonna tell someone after they upload idiot 😂😂
@@bobbylee2988 🤣🤣🤣🤣🤣🤣🤣
@@bobbylee2988 how could he tell him before? Hop in a delorean 🤣😂
I'm just here enjoying the nice weather in southern Cali ☕🐸
jesse garcia same in Oceanside lol
same, san diego here.. what is weather?
I am enjoying lower taxes and a realistic housing cost.
how will you prevent the coilovers from rusting?
Nice fitting panels
Did you notice any sound deadning effect, after doing this? Some companies mention that their (similar) products help prevent rust, but also help sound deadning.
An answer on that would be great!!!
Nice!!!
Thanks!
Not only are you preventing rust, but it's aesthetically pleasing since it looks like your car has been painted a different color than factory. You'll also potentially get a little bit of sound deadening from the rubber loading those panels. Great vid!
I'm with you 100%. I love the fresh, clean, uniform black look under the entire car. Especially if you have a few rusty parts that you want to cover up.
milanmastracci I need your help I found a 2001 golf gti with a bad ecu they said it needs a new ecu and if I want to buy the car I am have to buy it as is what do u think
I used the rustoleum one.
Wheel wells
What about wire harness? Does it matter if You paint them ?
Where did you buy thoughts jack stands?.
Milan your bumper doesen't align properly. Can you make a video about fixing that. I also have that small problem. Keep it up!
Ion Bobes that's a replica .:R bumper so it's naturally not going to align properly. if you have the OEM vw front bumper, you can take it off and try to remount it with the help of some friends to try to keep it even before screwing it together. if that doesn't work, the tracks/guides on the bumper/fender might be broken and need to be replaced
Wonder if it's his quarter panel that's off cause he said he replaced that
Nice video bro, i just did this to my car to. The besy way to prevent rust is to do this every year. Keep up the good work like to watching your video's.
I Always spray on a layer of rocker guard before i spray on the rubberized under coating.... If you do it fast they weld together and when the rubber wears off atleast there wont be any exposed metal... You can go a step further and spray on some zimc galvanizing paint before those steps
Now that the wheels are off, do you have any idea what my issue could be:
When I turn my right wheel all the way left/right, it makes a "clonk" sound every time the wheel makes a rotation.
any idea?
Could be the shock bushings or any from control arms ball joint
How do you safely lift your car on to 4 stands? I have a 2012 beetle but when I lift it up I do not have space for a jack stand at the same point.
Michael DiPasquale just buy a heavy duty 3ton jack and u should be good , also jack from subframe , if it's a unibody lift from 2-3 inches away from where you want to put the jack stands , do one side at a time if that helps you.
Nice video! Too bad here in Thailand we don't have the 3M stuff. We have to make do with threebond :)
nice bro
Great video again Milan.
Cheers
What air compressor do you have ?
Any follow up video? How'd it go?
Make a video demonstrating how to install a chrome trim to the golf
please post link on rust removal
The water would never wash it away after some time?
Dont forget to clean out behind the fender liners they hold dirt and In the front whatever comes down through the rain tray etc will get caught there and rust out ur fenders etc
How many cans do you think it would take to cover the underside and wheel wells of a average sized suv
TutorialSurplus I'd assume maybe one more but I'd buy 8 just to make sure you have enough. And hey if you run out just buy some more
I want to do this on a Sunday driver. Will this last me a life time? Never will see rain in it's life. Only will drive on a nice day.
good idea to remove the inderfender/plastic and also spray behind it
At 12:25 you say you will give an update about how this held up. Where is that update?
Nice
What camera and mic do you use?
How often do you do that?