AURO 191 is an all purpose citrus thinner, for AURO 126, AURO 129 and other oil based AURO products.  Also a cleaner for brushes and other utensils as well as for removing spots and stains following the use of oily AURO products. It can also be used around the house to remove stubborn stains like adhesive left from stickers etc. Do not use on fabrics or polished surfaces, this is a powerful solvent.