CR™ Sealant (Chemical Resistant Sealant) is a 100% solids, two-component, moisture tolerant, penetrating epoxy primer which is specifically formulated to provide excellent adhesion with the Polyguard Chemical Resistant Waterproofing Membranes. CR™ Sealant is an integral part of the Polyguard Chemical Resistant Waterproofing System and will be an amber color in appearance.