Help...polycrylic finish is crackling!
Yesterday I applied my first coat of minwax semi-gloss polycrylic over 2 coats of Ace cabinet,door and trim paint on several cabinet doors. This afternoon I went to lightly sand and then apply the second coat and was shocked to find that the poly finish was completely "crackled." I have used the polycrilic over the same paint on all of my baseboards, window & door trim, built-ins, etc and have never had this problem. Any suggestions on what went wrong? I applied the poly in my barn and the temp outside was cool (in the 60's) with moderate humidity. The can of poly was not "brand new"--I had used about 1/3 of the can last week when coating some builtins and didn't have any problems. The olny thing different was that I applied the poly in the barn and not inside the house. I just finished sanding one cabinet door and applied a third coat of Ace paint and am waiting for that to dry until tomorrow. Should I get a new can of poly? I would greatly appreciate any suggestions!