Hello!
I bought some "tar and glue remover" - http://www.waxamomo.co.uk/productcart/pc/viewPrd.asp?idproduct=284&idcategory=0
Doesn't look hard; don't drink it, wash your eyes in it, or feed it to your pets, but "for professional use"?
James
Never understood why things have these types of 'professional' use information on them. It's most likely to think your buying a superior product. If you saw 2 of the exact same bottles and one said nothing and the other said professional use, I bet anyone would pick up the professional one. It's a marketing strategy i suppose. I'd follow the instructions and it will be fine.