Here is what I did. The shop was heated to 70* for a day before applying the first application of epoxy. Sunday, sprayed epoxy. Tuesday applied body filler in a couple spots and sanded the filler and had some sand throughs. Wednesday sprayed epoxy over the body filler and over the unsanded epoxy that was sprayed on Sunday. This application of epoxy was sprayed very heavy and had a couple runs, but not in the area of the problem. I put a standard 500watt shop light on it to heat it up to 95 for a couple hours, to help cure the heavy epoxy a little quicker. Friday sanded the runs out and sprayed poly. Saturday sanded the poly and in a spot sanded through to Wednesday’s epoxy. I noticed it was soft. I was able to scrape Wednesday’s epoxy off down to Sunday’s layer of epoxy with my finger nail The shop temperature was between 70 and 73 the whole time. I checked the soft epoxy on Sunday and it is no longer able to be scraped off with my finger nail.
Is it normal for epoxy to be soft even after waiting 2 days before applying poly primer? The layer of epoxy just under the poly is getting harder now that 4 days has passed since spraying the last application of epoxy.
Should I have waited longer before sanding the poly, knowing I will have sand throughs to the epoxy?
Is it normal for epoxy to be soft even after waiting 2 days before applying poly primer? The layer of epoxy just under the poly is getting harder now that 4 days has passed since spraying the last application of epoxy.
Should I have waited longer before sanding the poly, knowing I will have sand throughs to the epoxy?
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