Blister repair .

[bryant99]

So I will be getting the bottom half of my boat redone due to blisters , but the earliest I can get it done will be Aug 7th. In the mean time I am going to repair a small one or 2. What products would you guys recommend?

 

[Grub54891]

Have you checked the inside stringers and transom For rot?

 

[airshot]

Have to agree...that was always a sign there were bigger issues down under...

 

[bryant99]

Have you checked the inside stringers and transom For rot?

It's a 100% fiberglass boat . I don't see any issues with the fiberglass. Though I might not know what to look for . I do think the black.flakes that I find In my engin bay come from the pipe that drains Into there

 

[Grub54891]

Boats have wood structure under the glass. You can test it by drilling small holes in the stringer about a 5/16" drill bit will work. Go in about 1/2" and see if the wood shavings are black and mushy, if so, the wood is rotted. If the shavings come out dry and clean, its good. Seal the holes with epoxy when done to prevent water from entering the holes. The transom id the same deal, drill in deep enough to check the shavings but don't go through the outer skin. Check low in the transom and work your way up. Seal those holes with epoxy also.
Edit, What type of boat and year?

 

[bryant99]

There is no wood on bryant boats .
But I will look for some epoxy to use to fill in the hole , thank you

 

[flashback]

If the blisters are localized you stand a chance of stopping them by grinding the gel off, tent the hull with a dehumidifier, then fair and coat with barrier paint once the laminate is dry..

 

[tpenfield]

Grind the blisters open . . .but then you should really let them dry out for a while. (weeks) You can then fill them with epoxy.

 

[Scott Danforth]

blisters are uncured resin reacting with water

happens to moored boats without a barrier coat or bottom paint

as stated above, grind them out, dry it out, should only need VE fairing compound, barrier coat and bottom paint.

 

[airshot]

It's a 100% fiberglass boat . I don't see any issues with the fiberglass. Though I might not know what to look for . I do think the black.flakes that I find In my engin bay come from the pipe that drains Into there

That is a rare all glass boat....I know newer boats have gone all glass but did not realize there were older ones. This will make those blisters much easier to repair, replacing wood structure really sucks !!!

 

[tpenfield]

Yup, I recall Bryant boats being no wood.

 

[Scott Danforth]

they still have foam

foam still gets water-logged

plexus joints last about 15 years

 

[Grub54891]

Ah, didn’t know that it was all glass. Good to know. Yeah the blisters will be an easier fix, but as suggested, bottom paint is a good idea.

 

[flashback]

Yes bottom paint is good but you really need about 7 or 8 coats of epoxy barrier paint first..