as mentioned in another post i have been wondering for a while what the
original volkswagen factory undercoating and seam sealer was made from?
when i refer to under coating i'm not talking about the black tary
substance that i think was put on as a dealer option but rather the very
thick "rubbery" like substance that one finds in the wheel wells.  i know
that 3M and other body shop supply type companies have various products
for this application but i still wonder what the factory used.

jonathan