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- เผยแพร่เมื่อ 15 ต.ค. 2024
- The hulls of most personal watercraft, like this Yamaha WaveRunner, are constructed from SMC, or Sheet Molding Compound. This rigid, glass-reinforced material is tough and strong, but it can break, as in this case when a teenager rammed it into a dock.
Sheet Molding Compound is like a mass-manufactured form of fiberglass. It is a thermoset material made of a heat-setting polyester resin with glass fiber reinforcement. It’s a very rigid material that is smooth on both sides. You can identify it because the substrate is white and has glass fibers in the damaged area. This video will show you the repair process for SMC personal watercraft hulls.
View this video on our website for products used and more information: www.polyvance....
⚠️ Important ⚠️
Always wear proper safety gear while working!
The length of this video is in no way representative of the actual time required to perform a complete repair and therefore should not be used for estimating purposes.
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That is a ton of work. No one gonna use my ski. If it gets wrecked gonna be me
Now you know how to repair it if it breaks :)
with those big cracks that have gone right through, this is an inadequate repair, and will just crack again. This needs to be cut out with a shallow v, and rebuilt back up with glass matt and epoxy.
If this was a stressed area, you would be correct, but its not. 2020 is surprisingly strong and unless this area is hit again, it should be fine....of course, if its hit again all bets are off anyway.
@@scottb7600where can I reach you? Wanted to talk to you about some repairs and a possible partnership.
@@scottb7600is this better than panel adhesive/filler for SMC ? I've been using it to customize my C4 Corvette with mixed results 😢
Can I use this for bottom of the hull too? Is strong enough from the impact of the water
It is epoxy based and will have no problems with adhesion, but for the bottom of the hull I would embed some fiberglass into the repair to make it more impact resistant. Same basic process though.
@@scottb7600 the
I thought SMC panels do not contain fibers the way normal fiberglass does 🤔
I know my old C4 Corvette doesn't have fibers where damaged
SMC is sheet molded compound, which has fibers. Your corvette panels may also be polyurethane, GTX or other plastic without fibers. GTX feels hard like SMC, as does polycarbonate, but I don't know enough about Corvettes to tell you for sure if they were ever used in its construction. I know SMC (with fibers) and polyurethane were used extensively.
@@scottb7600 do you know if this product is engineered to no show ghosting or mapping of the edges of the original crack/hole? This has been an issue for me
Hi, I have a 2006 seadoo that needs some bottom repair. I thought you couldn't use epoxy over polyester material, gelcoat. Is it possible to use this product and can you spray gelcoat to finish?
Polyester resin and Epoxy don't have any significant bond issues as long as its prepped properly. And yes, you could GelCoat over epoxy, although it would be far more expensive to do that than to use an epoxy paint or other 2k product.
@@scottb7600 I didn't realize I could use an epoxy paint on the bottom of a jetski. Do they have a good match for Seadoo black? Thank you very much for replying, I really appreciate the information.
How much does one of these repairs cost? I got the same problem with my ski and they’re charging me $800
If that includes paint, they are not trying to gouge you. It would take several hours for the repair and several more for the paint, plus the cost of materials.
@@scottb7600 Thank you Scott, insurance will be helping me as well. Hope everything is well. Stay healthy!
I have a 99 gp1200 and the keel is worn through the top coat from it being beached over 20 years is it just paint on top of epoxy to fix it? Its not gel coat is it?
Its probably gel coat, which typically cures harder than paint and is applied during the manufacturing process of the hull. Its more durable than paint. They make gel coat repair kits for reapplying it to the hull, but it takes a bit of effort to get it to look perfect. I applied it to a sailboat I own and just masked the area and followed the hull contour so when I peeled off the tape, the tape line followed the hull shape. It wasn't as nice as not having the gel coat feathered in, but it sure was a whole lot easier and nobody really notices but me.
@@scottb7600 cool thanks yeah I don't mind if its a bit ugly its right on the point of the keel function over form 👍 im sure there's a bunch of brands out there suggest any? I have some jb marine weld probably not the correct stuff though
@@darinmorgante7200 for the glass repair to get the contour right, that should be fine. Polyvance makes a great epoxy based hardset filler that works great on the gouges. (2020-T) www.polyvance.com/Hardset-Filler-1/2020-T/ I can't remember the brand I used for the gelcoat. I think I bought it from West Marine or other boating supply store. As far as I know, most GelCoat is pretty much the same. Its designed to be sprayed into the mold when making the hull, but can also be applied after, as long as there is a good sanding scratch. You will need to sand and polish the gelcoat after it cures if you want that super high gloss.
hey guys maybe one can help, I have this same exact ski in the video, on the bottom I have a bunch of gouges from beaching the ski so its all scratched up, I want to use this SMC repair for the bottom but, Is the bottom just paint or gelcoat onto of it?
It should be a gelcoat...which is basically a tinted epoxy paint sprayed into the mold before the glass is applied to the mold.
Would this be good fix for a 4" inch crack in the middle of a panel on a Jeep Hardtop?
As long as its SMC, then yes.
@@scottb7600 okay, thank for the info. I know it is SMC, the reason I ask is it is fairly thin and flexible in the part that cracked, so I wonder if this material has the flex to not crack again.
@@Matt-nq4du yes, as long as you feather it all in correctly and create a nice gradual transition between the repair and the original material, you should have no worries.
What colour of black to you use
We used our 3043 Black Jack Primer and a black urethane single-stage paint. The shade of paint is up to you; whatever matches best.
okayish
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