Quote:
Originally Posted by HuggerCST
I have a related question- I have used featherfill sprayable filler one time, and had a problem with it. Maybe someone can tell me what I did wrong- I sprayed 2 coats of Martin Senour epoxy primer, waited about an hour, then sprayed two coats of featherfill. After a couple of days, I block sanded the featherfill. It sanded great, but in the areas where I sanded through the featherfill to the epoxy, it was gummy enough that I could scrape the epoxy off with my fingernails to the bare metal. I've never had this problem with the epoxy before. Should I have let the epoxy cure longer?
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Epoxy by nature is a slow curing product. Most tech sheets say to wait overnight to apply body filler over epoxy when 2 coats is used.
Willing to bet the poly primer sealed the epoxy off from curing and the solvents couldn't escape from the epoxy keeping it gummy.
Most definitively let the epoxy cure for 24 hrs before applying filler or poly primer...Eric