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For what it's worth, If you use All Metal or Alumaled Type fillers on a seamed area, I highly advize you first protect the metal with a good epoxy primer. The aluminum content in the fillers eventually will react with the steel and
seperate due to corrosion. I worked in a shop that used nothing but All Metal filler for a couple years until many jobs came back with rust under the filler.
I use the Epoxy, Fiberfill,Lightweight fill, Epoxy, polyestersanding primer, and Topcoat system in that order. I have work running around,20 yrs + using this procedure. Don't buy cheap stuff.
 
A reputable body man told me I should prime the weld seam first then use a waterproof filler over the primer. I don't know what to think about that. He does do nice work and with about 50 years experience. I wasn't going to question him. Can metal-2-metal be used over primer?

Don
 
A reputable body man told me I should prime the weld seam first then use a waterproof filler over the primer. I don't know what to think about that. He does do nice work and with about 50 years experience. I wasn't going to question him. Can metal-2-metal be used over primer?

Don
Apply fillers over Epoxy Primer, especially in a seamed area, is what I was describing in my previous post. I have 43 years in.
 
A reputable body man told me I should prime the weld seam first then use a waterproof filler over the primer. I don't know what to think about that. He does do nice work and with about 50 years experience. I wasn't going to question him. Can metal-2-metal be used over primer?

Don
Don....like any filler, even over primer make sure you rough-up the area before apply the filler (esp. Metal2metal). It don't stick well to a slick surface.
 
Good point Mike...
Thanx
btw
This body man also told me the primer can be "brushed" into the seam. The most important thing is to get it into all the nooks and crannies.

Don
 
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