Thread: fiberglass problems
02-13-2006, 09:58 PM #1
I think it was too cold for me to fiberglass my hull. I have 2 thin layers (put em on with a foam brush) of glass over my repairs, trying to smooth it out, fill in some pinholes, and build it up a little bit. Anywho the last layer is still soft and sticky, even after almost a week (the other thin layer and the heavy repairs were fine). I have to remove that layer before I can put any more on right? I'm not going to fiberglass any more until I can maintain 70 degrees in my garage (IE not till spring). If I try to sand it off it just clogs the paper. Will acetone take it off? Will acetone take the properly (I hope) cured glass or gelcoat off my hull?
02-13-2006, 11:17 PM #2
02-14-2006, 07:47 AM #3
You didn't mix enough activator with it.
Grind it all back off and start over.
02-14-2006, 04:12 PM #4
- Join Date
- Oct 2005
02-14-2006, 07:19 PM #5
thats what I get for following the damn directions. I was just winging it for the first layers (I was actually using almost twice as much activator as I supposedly should have), I decided to do it right and used a tablespoon to measure out exact proportions.
Grinding it out is going to be a problem as i "painted" over the gelcoat I scuffed up while repairing the holes to build it back up. Im gonna have to sand the whole bow down....
02-14-2006, 07:47 PM #6
I use wax paper over the resin/glass, doing this will let you get a very smooth finish with a flexable spreader. This also help the cure process.
02-14-2006, 08:12 PM #7
you could try putting some spotlights on it.
or one of those halogen worklights.
resin is ussually "light activated" if you read the can it probbly says something like that right on it.
anyway next time use alot more hardner in the cold weather.
02-14-2006, 09:03 PM #8
02-14-2006, 11:01 PM #9
try what rapid suggested first. I've had gel coat that didn't cure when it was cool, put a halogen work light on it and got it hot and it cured properly a couple days after it should have.
02-15-2006, 03:10 PM #10
- Join Date
- Feb 2006
Hey everybody, my name is Papoloko and I'm from Southern California. Here goes my first post and I hope it will help out some.
Sound like you didn't put enough drying additive or something got contaminated somewhere while mixing the resin. Is the repair soft or just tacky?
I have never worked in a really cold weather but a week is definitely too long and if it isn't drying up you will have to take it out. Scrape it out and then clean with acetone. I done glass work up to a quarter of an inch thick in some areas but it has never taken that long, 2 day at most to be hard and maybe a little longer on the tacky part. I know that with the drying process of gelcoat if you cut the oxygen to the painted surface then it will dry faster, smother and shinier. Resin has the same properties than gelcoat. Good luck.
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