GAF 5 Gal. White Acrylex 400 Primer Roof Coating

Acrylex 400 Primer is a premium-quality acrylic primer for rusty metal. In addition to excellent corrosion resistance over metal substrates, Acrylex 400 Primer also has alkali resistance over concrete/masonry and tannin resistance over wood surfaces. It is relatively fast drying, blister resistant, flexible and highly durable. Acrylex 400 Primer is a water-based, medium viscosity material and conforms to most all local, state and federal environmental and VOC requirements. Acrylex 400 Primer is a single component, off-white, ready-to-use material.