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Posted by chrisnj [68.39.48.179] on Wednesday, March 30, 2011 at 21:09:40 :
In Reply to: NO....STOP posted by Paul (in NY) [12.64.126.96] on Tuesday, March 29, 2011 at 18:48:05 :
No paint/primer under filler...just not meant to be. Body fillers are meant for bare substrate, ground with a minimum 80 grit, preferably a 40 grit disk, to give the filler a bite. makes it stay put forever. The only exception is a glazing material, that can be used over paint/primer in small spot repairs.