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Old 11-05-2005, 09:19 PM
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Scratches in the primer filler after blocking

I need some suggestions!

I sprayed the roof of my Mustang with DuPonts URO 1107 Filler Primer. After blocking the roof with 400 for four hours all I was able to do is knock most of the texture off of it. I then switched down to 240 and back up to 320 to 400. I know have scratches from the 240. Other wise the surface is nice and smooth. Should I use a putty to get rid of the scratches, spray the URO as a sealer and re-hit it with 400 and higher or maybe something else? The URO can be used as a filler or a sealer I think if I shoot more filler on there that I will end up with the same thing again.

I used the 1104 in the past with a conventional gun, which is a medium gray and it sands fairly easily. Now I switched to the 1107, which is a dark gray, and I applied it with a HVLP gun. The darker stuff seems harder than the lighter colored stuff to sand. I switched to the darker color because I plan on using a dark base coat.
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