Fun With Fiber Glass

[Tinkerman]

Afternoon, been a real long time since I worked with fiber glass. I had to do some repair work on the rear valance mill board. I was concerned with the curve so I put some fiber glass on the outside of the curve. No problem.
At sometime in its life someone applied the handy mans rule to it. You know the one I mean. "Measure twice, cut once,pound it in with a hammer!" Both corners were messed up, I cut the bad spots off and I am rebuilding the corners. Got the first one done, ready for a first application of fiber glass. Mixed it up and applied it three hours ago. Not hardened yet. YES I did put hardner in it but perhaps not enough.
My question is: Do I wait it out and hope it hardens or do I put another application of resin on with more hardner in it?

Your thoughts as always greatly appreciated.
Tinkerman

 

[alfa33047]

Remove the fiberglass if it is not getting hard. If it hardens on top but not on the bottom (next to your part), it was not mixed throughly and will take a long time to dry but may ruin your part. Bad hardner can also cause it not to harden, resin and hardner not throughly mixed may not harden, too cold or damp climate slow the drying process.
I was in the fiberglass business for several years, got concerns about the health affect on my body and sold out. Good Luck, Bill C. Mesa, Az.

 

[ekamm]

I did some thing very similar with some jb as the resin. I will tell you this if I could place it in the car to let it setup I would. After covering mine I found it nearly impossible to get it all to fit withe the capping and all. There is very little leeway with everything in place.

 

[Tinkerman]

Bill, I removed what I could. Some of it did finally harden, operator error in the mixing department, I would think. I cut out another smaller patch of FG and re-did it with plenty of hardner and lotsa mixing. It is hardening up nicely.

Eric, thanks for the heads up. I probably would have followed Murphy's law. The one that says "if it can get screwed up, it will".
Anyhow I think I'm back on the right track now.

Thanks, Tinkerman