Hydrosealer Exterior Primer

Revolutionary bonding primer for exterior smooth masonry and wood surfaces.

Hydrosealer Exterior Primer is a revolutionary acrylic bonding primer designed to provide excellent adhesion to smooth masonry surfaces. Hydrosealer Exterior Primer also binds chalky and worn surfaces, and resists checking and cracking over bare exterior masonry and wood. Hydrosealer Exterior Primer is moisture and mildew resistant, dries fast, with excellent hide and leveling. Highly alkali resistant and may be applied at temperatures as low as 35°F, to extend the painting day.