Hi Sergey - 30-odd years ago, someone gave my 5-year-old a toy make-up kit, which included nail polish - The real thing, I realized, when she opened the bottles. So I read up on acetone, and decided that, at a minimum, it's probably a good idea to avoid regular exposure... YMMV. Jack --=20 Whom the gods would destroy, they first make mad... --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .