Cotol-240 Cleaner & Cure Accelerator is a urethane cure accelerator and pre-cleaner to be used in conjunction with Aquaseal. The solvent cleans and prepares the surface, readying it for Aquaseal, speeding the tack time to 15 minutes and the full cure time to less than two hours. Cotol-240 is also ideal for removing tar, sap, glue, and other resins from various surfaces including glass, plastic and metal.