Building Tips and technical articles. > Paint and finishing
ZAP FINISHING RESIN NOT HARDENING
bob whitney:
has anyone had Zap finishing resin not harden about half way through the tubes ..??could it be too old?? was working fine then the next batch turned to rubber???
Avaiojet:
Where and how is it applied?
Smooth, thin over a large area?
Mike Alimov:
I don't use Zap, but I've had EZ-lam go bad after 5-7 years of storage. The best catalyst for epoxy is heat. Try heating up the area with a hair dryer set on High, or a Monokote gun from a sufficient distance (so that hot air doesn't burn hand near surface). If after heating the area for 20-30 minutes your don't feel any improvement, I'm afraid it's game over.
Avaiojet:
--- Quote from: Mike Alimov on April 24, 2021, 03:29:23 PM ---I don't use Zap, but I've had EZ-lam go bad after 5-7 years of storage. The best catalyst for epoxy is heat. Try heating up the area with a hair dryer set on High, or a Monokote gun from a sufficient distance (so that hot air doesn't burn hand near surface). If after heating the area for 20-30 minutes your don't feel any improvement, I'm afraid it's game over.
--- End quote ---
Heat makes Epoxy liquid again.
Brett Buck:
--- Quote from: bob whitney on April 24, 2021, 01:54:48 PM ---has anyone had Zap finishing resin not harden about half way through the tubes ..??could it be too old?? was working fine then the next batch turned to rubber???
--- End quote ---
Epoxy or polyester? "Finishing Resin" is normally polyester. If it is epoxy, then, that is unusual and many a bad proportions or mixing. Polyester, however, is notorious for that sort of thing, and it hats any sort of surface contamination.
Brett
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