Thick gel clings to vertical porous and non-porous surfaces - will not run. Emulsifiable - wipe off with cloth or rinse off with water. Removes pen & marker. -Also printing & stencil ink, spray paints, adhesives & tar -Use on brick, Formica®, steel, glass, chrome, porcelain, etc -Shake before using. Spray 8" - 12" from surface. -12 cans/case. THIS ITEM CANNOT BE SHIPPED VIA FEDEX OR USPS.