Is the other 10% water? That's pretty inert and would raise the flash point from that of pure acetone (but so would many other additives).
Acetone is a very good solvent for rubber and plastic. I would be hesitant to put it in my car, but such a small amount might be OK.
Since water is immiscible in water it won't affect the flash point; the water would just boil away. My point was that the claim of RxP being acetone doesn't "hold water." (Pun intended)
Boy, when I screw up, I do it big time:
Since water is immiscible in acetone it won't affect the flash point; the water would just boil away. My point was that the claim of RxP being acetone doesn't "hold water." (Pun intended)