Yes you can, providing it is MonoKote. It doesn't work with Ultracote. There is actually a better product than Acetone called "No Heat" available at Hobby shops. It is not as aggressive as acetone, but it costs more.

Acetone is found in Nail Polish Remover and also can be purchased at Home Improvement and Hardware stores. But just a word of caution: Acetone is extremely flammable and it really stinks (Like Nail Polish Remover)