Just about everything! Fiberglass, Steel, Aluminum, Plastic, vinyl, Wood, Concrete (not good for floors, (do not walk on GatorGlide products). I tried UHMW myself, It will not stick long. Any oily substrate is not a good place to try to get anything to stick to. If someone says they have something that will stick to uhmw or like kind, be very careful! They may have a bridge to sell. GatorGlide is on Dump truck beds, Game feeders, Lawn mower decks, undercarriages of heavy equipment, Trucks, ATV’s, UTV’s, Snow removal equipment, Factory assembly table where adhesive are used, Irrigation, water treatment plants, Snowboards, Wakeboards, Paddleboards and just about every kind of boat you can think of. (The fouling release is NOT meant for boats that stay in the saltwater year round). I’m sure I left off lots of things. GatorGlide customers are smart and innovative, let me know what you come up with.