Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.
Research from major concrete authorities, including the American Concrete Institute, Portland Cement Association, and the National Ready Mixed Concrete Association confirm that most concrete damage is attributable to surface moisture intrusion.The most pervasive form of concrete damage is surface scaling from freeze/thaw.Other forms of damage include alkali-silica reaction (ASR), chemical intrusion, and corrosion of steel reinforcements.
