CHEM-HARD sealer is a proprietary blend of siliconate polymers which penetrates concrete surfaces providing an increase in abrasion resistance and a reduction in the surface absorption of liquids. The product reacts with elements in the concrete surface resulting in a low sheen which enhances the appearance of the concrete surface. CHEM-HARD is water based and V.O.C. compliant. It generally dries tack free in 2 to 4 hours at 21°C @ 50% RH


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