ZINSSER WATERTITE flexible primer and finish is a high build, moisture and mildew-resistant, low VOC coating designed with elastomeric qualities to expand and contract to fill hairline cracks (1/16 in or less) in vertical concrete and masonry surfaces. These products are suitable ...ZINSSER WATERTITE flexible primer and finish is a high build, moisture and mildew-resistant, low VOC coating designed with elastomeric qualities to expand and contract to fill hairline cracks (1/16 in or less) in vertical concrete and masonry surfaces. These products are suitable for stucco, brick, tilt-up walls, pre-cast or poured-in-place concrete as well as CMU and cement block.
Flexible primer and finish provides excellent resistance to high alkali surfaces (pH levels up to 13.8).