[rscupper]

Ronin, I have no clue what the factory would use.

I'm guessing they would spray thin for weight purposes, maybe keep it as non-flammable as possible, and maybe non-toxic when burned. I doubt if they would be too concerned about durability. Probably spray it once then touch up throughout the season as needed. The car will likely be completely rebuilt between seasons or scrapped/retired for the newest model.

Anybody know?