bottom repair

[tootoot]

Friend has a 19' with outboard and it has been painted with reg. boat paint. It has blisters into the hull not deep though. He is sanding them out (50-100 of them) and repairing them with epoxy and is removing all the bottom paint. The resulting surface will be a combination of old gelcoat(30 yrs old) and the epoxy patches. We are curious what he should use to reseal the exterior of the hull.(Water line and below) I have rebuilt several boats and always just regelcoated. He doesnt have the skill to do that. I mentioned two part epoxy or two part urethane. Any suggestions?

 

[tootoot]

Re: bottom repair

sorry, forgot to add that the boat is trailered and is stored out of the water. He also would like it red if possible.

 

[tootoot]

Re: bottom repair

Any Body know the answer or have advise. Ive checked the search and didnt really come up with an answer.

 

[andy6374]

Re: bottom repair

Bisters are caused by moisture that builds up in voids in the laminate. There is not many options, all you can do is grind and feather away the blister. Then fill with an epoxy filler, fair and barrier coat

 

[G DANE]

Re: bottom repair

There are epoxy primers made exactly for that porpose. I tried it once on an old boat I had, applied 6 layers, and had the boat for years after, it never came back. International has one.

 

[tootoot]

Re: bottom repair

Once sealed with epoxy, what would be a good finish paint? urethane? epoxy? one part? two part? need advise. Its not a high dollar boat but dont want to have to do it again.

 

[Chris1956]

Re: bottom repair

tootoot, After painting with the epoxy barrier coat, you should use a two-part polyurethane, which is made for below waterline. If he is only going to trailer the boat, he could get away with a one-part polyurethane paint. You can roll and tip or spray these.

 

[tootoot]

Re: bottom repair

Great, thanks for the info.

 

[imported_bjs]

Re: bottom repair

expoy primers are better for your place but very $$$$$.urethane will work.single stage paint will work and is real durable.i would find some boat paint i dont remember the name may have to look old post

 

[tootoot]

Re: bottom repair

Tx. I found a company Clark Craft in NY they have a primer and one part urethane and to do the boat (one coat epox and two urethane) around 2 hundred bucks. Couldnt find much else on the web.