Tenax’s Fixtop Epoxy Adhesive is a true, 100%, two-part epoxy glue, which isn’t water-based. Perfect for use with tile, super strong and very easy to mix and spread, Fixtop is suitable for gluing and bonding ceramic, porcelain, natural stone, as well as hardwood, cement board, laminate and plywood. It works best when applied in a thin layer and will not dissolve or break down in water, making it ideal for shower applications. Applicable both indoors and outdoors, there are no issues with expansion or contraction.