T1000 Primer is a bonding agent for use with T1000 Stampable Overlay, a cementitious overlay for the resurfacing of interior or exterior concrete. As an option, it may also be used with T1000™ Fine Overlay. It is a concentrated ethyl vinyl acetate (EVA) copolymer liquid, that when properly mixed and applied, enhances the adhesion, workability and curing of cementitious overlays. It is a white liquid that dries to a clear film. For interior or exterior and horizontal or vertical use.