Reactive Penetrating Sealers

Shane, I'm not sure how CARB and SCAQMD rules line up. I'd want to check that the VOC content falls under the applicable SCAQMD limit.

May I suggest: Under Rule 1113; Architectural Coatings: (60) WATERPROOFING SEALERS are coatings which are formulated for the primary purpose of preventing penetration of porous substrates by water. (61) WATERPROOFING CONCRETE/MASONRY SEALERS are clear or pigmented sealers that are formulated for sealing concrete and masonry to provide resistance against water, alkalis, acids, ultraviolet light, and staining.

Hmmmmmm, So according to SCAQMD 1113: (I post this for others as you have obviously found this): REACTIVE PENETRATING SEALERS are clear or pigmented coatings labeled and formulated for application to above-ground concrete and masonry substrates to provide protection from water and waterborne contaminants, including, but not limited to, alkalis, acids, and salts. Reactive Penetrating Sealers must meet the following criteria: -Used only for reinforced concrete bridge structures for transportation projects within 5 miles of the coast or above 4,000 feet elevation or for restoration and/or preservation projects on registered historical buildings that are under the purview of a restoration architect. -Penetrate into concrete and masonry substrates and chemically react to form covalent bonds with naturally occurring minerals in the substrate. -Line the pores of concrete and masonry substrates with a hydrophobic coating, but do not form a surface film. -Improve water repellency at least 80 percent after application on a concrete or masonry substrate. This performance must be verified on standardized test specimens, in accordance with one or more of the following standards: ASTM C67, or ASTM C97, or ASTM C140. -Not reduce the water vapor transmission rate by more than 2 percent after application on a concrete or masonry substrate. This performance must be verified on standardized test specimens, in accordance with ASTM E96/E96M. -Meet the performance criteria listed in the National Cooperative Highway Research Report 244 (1981), surface chloride screening applications, for products labeled and formulated for vehicular traffic. As far as I can find, the LEED Reference guides do not refer to this criteria - therefore I think that point 4 "Improve water repellency... after application on a concrete or masonry substrate" I would apply this to the WATERPROOFING CONCRETE/MASONRY SEALERS category.