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Old 01-12-2017, 05:14 PM   #1
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Name: Ronald
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Patchwork!

I have been told that polyester fibreglass is not so great for spider cracks and repair work. I uses long strand molecules that don't grip and bond that well. Epoxy is what I was told? Any thoughts, folks??
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Old 01-12-2017, 06:35 PM   #2
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Name: Gerry
Trailer: 1979 Boler 1300 / 1991 Casita Freedom Deluxe
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The cracks I think your talking about is in the gel-coat of the fiberglass I assume.
I worked just with epoxy/resin fiberglass while building canoes and know for a fact, if the area is clean of oils and wax this stuff will stick.
I used what is known as a fillet with is ground glass fibers mixed with the epoxy/resin mixture and filled and smoothed out many of little imperfections.
Spilled a dime size dollop on the cement basement floor and 25 years later it is still there in a high trafic area
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Old 01-12-2017, 08:32 PM   #3
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Fiberglass

So I think I have it... Premium epoxy (eg. West Marine) and micro-balloons. I was originally going to use marine gelled resin, so it would not creep down while curing. Must get my ducks in a row when I pick it up from the widow in April. Should fit in my garage without resorting to temp 8" wheels. Unit has original style 13" tires. New sizes are higher profile, I believe...Cheers!
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Old 01-12-2017, 08:49 PM   #4
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Quote:
Originally Posted by Butsky View Post
So I think I have it... Premium epoxy (eg. West Marine) and micro-balloons. I was originally going to use marine gelled resin, so it would not creep down while curing. Must get my ducks in a row when I pick it up from the widow in April. Should fit in my garage without resorting to temp 8" wheels. Unit has original style 13" tires. New sizes are higher profile, I believe...Cheers!
if it's just spider crack in the gel-coat and not a structural repair use bondo. You don't say if you are going to repaint. If you are not, that is a different fix.

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Old 01-13-2017, 10:23 AM   #5
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Spider cracks and all

I plan to repaint both upper and lower shell pieces, esp. the bottom.
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