I used it to paint the floor under the carpet and it worked well. But the surface needs to be cleaned well, I brushed off the rest in the engine compartment because the paint no longer set.
Warning, that stuff is just expensive toxic waste. According to the manufacturer (on request), the application thickness must be at least 1mm (it is not mentioned anywhere on the packaging). Which is totally unrealistic on a vertical plane. If too thin the stuff won't harden! A little too much hardener (on request) does not harden it either! In my case, the stuff stayed liquid and I had to remove it completely. A big mess! time and money for nothing.