SmithBarney
Well-Known Member
...then on a lot of Astro vans. There was no sanding. The fenders and hoods came into the assembly plant primed and ready to paint. Sanding would have meant re-priming and I never saw anyone priming.
Problem with the Astro Vans were all the body panels were galvanized steel, but the roof and hood were not, not sure if the rest of GMs line is made the same way. I think the paint formulas didn't work well with different steels.
My 92 AstroRS in 2007 had no rust except on the roof(and top of windshield typical GM water trap up there) Damn I miss that truck.
Edit: And it's still kicking around the internet...

http://i68.photobucket.com/albums/i22/boxdin/Astro 1991/Astro2-1.jpg