INDUSTRIAL GRADE - Waterbase clear penetrating concrete sealer, preservative and concrete paint sealer. Non-yellowing clear sealer that effectively protects against efflorescence, chalking, erosion & cracking. For uncoated or previously coated/stained surfaces. Excellent adhesion with abrasion, chemical, U.V., and hot tire pick up resistance. Check for compatibility on previously coated surfaces. Easy application and water clean up.