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Fordestes · 11-13-2019, 08:40 AM

What kind of prep is needed for water based paint? is it ok to shoot water base on blasted (wet) metal after cleaning without creating adhesion problems? would prepping with Methyl Ethel Ketone solve any moisture entrapment issues? it seemed to me that M.E.K may be somewhat water soluble and dries quickly .
what about using flex agents for frames? I had problems with a frame primed with an etching primer when put into service the top coat began to crack and peel. the PPG rep said I should have used a flex agent. I never heard of such till this happened . are there paints formulated for frame/metal flex without using such additives?

11-13-2019, 08:40 AM	#18
Fordestes Senior Member Join Date: May 2010 Posts: 886	Re: Painting Over Water !!!!!!!!!!! What kind of prep is needed for water based paint? is it ok to shoot water base on blasted (wet) metal after cleaning without creating adhesion problems? would prepping with Methyl Ethel Ketone solve any moisture entrapment issues? it seemed to me that M.E.K may be somewhat water soluble and dries quickly . what about using flex agents for frames? I had problems with a frame primed with an etching primer when put into service the top coat began to crack and peel. the PPG rep said I should have used a flex agent. I never heard of such till this happened . are there paints formulated for frame/metal flex without using such additives?