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Started By
Message
Fill Old Holes in Gel Coat
Posted on 7/21/18 at 12:20 pm
Posted on 7/21/18 at 12:20 pm
Have some old holes in gel coat from old bracket on trolling motor. Gel coat is white. What can I use to fill in the holes to match gel coat? I realize you will be able to tell hole was filled in, just looking for something that makes it look better than seeing old hole.
5
Posted on 7/21/18 at 12:22 pm to WPBTiger
Marine Tex
Posted on 7/21/18 at 12:43 pm to WPBTiger
I've used Jb water weld successfully also
Posted on 7/21/18 at 1:35 pm to BeerThirty
Actually gel coat is the correct way to do it but 3M 5200 is a good quick fix that will last forever. Just use masking tape around the hole. The stuff is bad arse and will get everywhere! Believe me I know from experience.
Posted on 7/21/18 at 1:36 pm to BeerThirty
Spectra gelcoat makes color match kits for a lot of makes and models to where it won’t be so obvious. If they don’t have it, I’ve used the thickened gelcoat paste from evercoat and mixed it with their white color additive and I like it. If you need something to actually fill the hole with I like the sixten epoxy from west system, you don’t have to mix it, it has a mixing nozzle and just uses a caulk gun. You’ll have to rough it up a bit befor you put gelcoat on top of the epoxy.
Posted on 7/21/18 at 1:48 pm to MotorBoater
True that. Just bought a tube to finish building my wading stringers. Already broke out the rubber gloves.
Posted on 7/21/18 at 2:14 pm to BeerThirty
Go to this site and enter your boat info. They sell gelcoat paste to match most boats. I have used it and its more of a paste than a liquid. It will make the hole disappear
LINK
LINK
Posted on 7/21/18 at 2:41 pm to Hank R Hill
At $260 it will make your money disappear too. I used marine tex when I filled in the holes from the old trolling motor mounts. I backed the holes with duct tape, taped off the area around the hole and then filled. Once dry, i sanded the excess off with 220 grit paper until the sand paper began to bite into the tape. From there I used progressively finer sand paper 600, 1000, 2000 and finally 3000. Blended in very well with the white gel-coat. It has yellowed over time, but when I applied it 9 years ago, you could barely tell. Marine Tex
Posted on 7/21/18 at 5:18 pm to Hank R Hill
quote:
Go to this site and enter your boat info.
They do not have Blue Wave
Posted on 7/21/18 at 7:25 pm to PoppinCork
The gel paste is $30 for 2 oz which will do several holes. I guess OP will have to go generic or 5200 since they dont have his boat. Or you could do the Carolina Skiff white or any other white which looks close to yours. 5200 will run you close to $20 a tube
This post was edited on 7/21/18 at 7:27 pm
Posted on 7/21/18 at 8:03 pm to Hank R Hill
You could also call blue wave, my boat is so old i didn’t have an option
Posted on 7/22/18 at 6:40 am to bigbuckdj
You can buy gelcoat paste. Clean the holes out good. Tape the under side. Tape around the hole on the top side. Mix paste and apply a bit more then what is need. Before doing all this, buy one of those clear plastic book report folders. Cut a piece 5x the size of the hole. Once you apply the gelcoat, apply the plastic over it and flatting it out. Let it dry and come back with some 120 grit wet sand paper. Sand it down with water. Wax out, all is good. 
Posted on 7/22/18 at 6:51 am to WPBTiger
Pettit EZ-Fair 7050 Epoxy Fairing Compound
youtube link
Basically mask off several inches around area (up to) with wide clear plastic package tape. It's key to go 3 or 4 inches around, so you can squeegee across top and drag excess onto package tape. Mix, dab on with cheap chip paint brush, cover with single side of plastic baggie (freezer bag best), and flatten with plastic squeegee. Done such as this for over thirty years as an old whitewater paddler (and sometimes boat builder) we'd fix'em-up and beat-em-up. Recently used this one on a 40' sailboat and this stuff was real easy to use. Def can use other stuff but this is real easy to use, mixes easy, stores easy, sands easy, is already white, cleans up well with denatured alcohol (as most stuff does), and has a long pot life. Go ahead have 3-4-5 paper towels torn off and alcohol ready, they'll be used to clean up tube, it's cover (to keep unused portion from cross contamination), any drops, on gloves to keep other stuff clean (like tube), as well as keeping rest of roll clean. If done properly you won't need to do much sanding, just lightly out feathering edges, if any at all.
youtube link
Basically mask off several inches around area (up to) with wide clear plastic package tape. It's key to go 3 or 4 inches around, so you can squeegee across top and drag excess onto package tape. Mix, dab on with cheap chip paint brush, cover with single side of plastic baggie (freezer bag best), and flatten with plastic squeegee. Done such as this for over thirty years as an old whitewater paddler (and sometimes boat builder) we'd fix'em-up and beat-em-up. Recently used this one on a 40' sailboat and this stuff was real easy to use. Def can use other stuff but this is real easy to use, mixes easy, stores easy, sands easy, is already white, cleans up well with denatured alcohol (as most stuff does), and has a long pot life. Go ahead have 3-4-5 paper towels torn off and alcohol ready, they'll be used to clean up tube, it's cover (to keep unused portion from cross contamination), any drops, on gloves to keep other stuff clean (like tube), as well as keeping rest of roll clean. If done properly you won't need to do much sanding, just lightly out feathering edges, if any at all.
This post was edited on 7/22/18 at 7:01 am
Posted on 7/22/18 at 6:51 am to WPBTiger
Consider using Bondo, videos on YouTube educational.
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