TPA 301R is a cost effective, flexible, powdered adhesive for wall and floor applications. Suitable to use over concrete, cement render, screeds, fibrous cement sheeting, plasterboard and suitable WPA waterproofing membranes†. It is suitable for most internal and external applications including bathrooms, toilets, laundries, kitchens, decks and verandas. TPA 301R is suitable for most types of moisture stable tiles in domestic and general tiling applications. TPA 301R is classified as a C1S1 adhesive.