Reply to "1905 Photos"

That your opinion ... but the manufacturers recommendations all say apply it over bare metal. I'm not sure which filler your using that washes off with soap and water ???

Up here in NY where there is extreme 100 degree days and -5 degree days I would say would be the best test. I have never had Filler Crack unless the metal seem was not welded properly and never had rust form under filler.

I have to say if we are talking about professional body work or home repairs. Body shops are heated and temperature controled to some degree. The metal was preped with metal conditioner and sanded some where between 36 and 120 grit, apply bondo over the most stable base .. is metal ?

If we are talking home repairs ?? there is a variety of things like not preped metal, filler mixed wrong, porrly welded seem, brazed seems,...

And I dont use epoxy or etching primer. I use red oxide primer over bare metal, then fill and sand primer then paint.

we can go one for days ... to each is own.

Ron