In a message dated 97-08-05 17:21:39 EDT, firstname.lastname@example.org (David M. Hall)
> Has anyone sprayed undercoating over paint, and did they have any problems
> with chemical interactions? I'm planning on using rustoleum rusty metal
> primer, and rustoleum flat black over that.
Well Dave, i wouldn't call it "chemical" but here goes. I did the same thing
on the floor of my '77 to quiet it down a bit. Thinking that it was
rubberized and semi-permanent, I sprayed it on before some other work that
needed done. Whenever i put my feet or anything else on it, the stuff
smeared, leaving your paint bare in that spot. I re-sprayed it before I
refitted the carpets, and at last glance, it looked OK. Moral of the story:
spray this stuff on right before you put in the carpets!
P.S. It did help to quiet the car down a bit!