WPA 460 is a two part water based epoxy primer used to seal concrete and masonry surfaces. WPA 460 cures to a water resistant coating with excellent adhesion to most common building substrates. WPA 460 is water based, user friendly, Convenient mixing ratio, 1:1 by volume, environmentally friendly, provides excellent water resistance, has excellent adhesion to building substrates including concrete, fibre cement, all masonry surfaces and Scyon sheeting.