bobbyc Posted July 13, 2010 Share Posted July 13, 2010 (edited) i've been reading online for a couple hours now...i'm going to be painting some polyurethane pieces...some people have said to prime, other to use an adhesion promoter, and others to just scuff and paint. the paint line up i have has a flex agent already mixed in. these are new bumpers out of the mold with nothing on them. the bumpers now seem to have nothing on them but paint...they aren't flaking and it seems adhesion was good. thanks! Edited July 14, 2010 by bobbyc Quote Link to comment Share on other sites More sharing options...
Rimal310 Posted July 14, 2010 Share Posted July 14, 2010 i primed my polyurethane pieces and the primer showed signs of cracking after just a little flexing. i was a noob at painting so i guess i should have added some flew agent to the primer or just painted with the flex agent. Quote Link to comment Share on other sites More sharing options...
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