Zinsser 1 Gallon Block Filler Primer (Case of 2) is a high-build acrylic primer designed for Interior and Exterior residential, commercial and industrial use. With twice the thickness of other primers it fills pinholes and seal voids in surfaces providing a smoother and more uniform topcoat. Block Filler 2X high hiding formula seals semi-porous surfaces to provide better topcoat coverage and consistent sheen without pin holing.
White, 1 GAL
For Use On Concrete, Stucco, Mortar and Other Cementitious Surfaces
Ideal for residential, commercial and industrial applications
Fills pinholes and seals voids in concrete block and masonry