A waterbased, acrylic application designed to protect above ground vertical concrete and masonry surfaces against moisture penetration. The sealer penetrates deep into the pores of concrete, binding sand and cement particles to form a tough, flexible yet breathable film. It is excellent for binding chalky surfaces to improve paint adhesion on either painted or unpainted substrates. Seal-Krete strengthens mortar joints, reduces efflorescence on brick, and acts as a color rejuvenator on older painted or colored surfaces (such as aged vinyl siding and stucco). Use Seal-Krete original bonding sealer on vertical surfaces including concrete block, brick, stucco, synthetic stucco, plaster, masonite, drywall, galvanized metal, aluminum siding, adobe, wood fencing, stone, and more. Ideal for vertical surfaces, apply with low pressure (garden) sprayer, airless sprayer, brush, or roller. Covers 80 to 300 Sq. Ft. per Gal., depending on surface porosity. Paintable in 2 to 4 hours. Can be mixed with latex paint/tintable. Soap and water clean up. Can be used as a primer under floor coatings. See package for details. 100 gm per liter.