Clear Guard First Seal is a water-based reactive water repellent sealer for use on unsealed concrete and unsealed concrete overlays as early as 48 hours after the concrete is poured. Scientifically formulated to allow for the high PH of new concrete, Clear Guard First Seal will react with the concrete and create a water resistant surface and a hydrophobic interior, thus reducing water and chemical absorption and the damaging effects caused by freeze-thaw and de-icing salts.
In addition to being a water repellent, Clear Guard First Seal provides excellent adhesion benefits when it is applied and allowed to dry prior to the application of Butterfield Color Clear Guard Cure and Seal or Clear Guard PRO 350 Cure and Seal.
Applying the Clear Guard First Seal at 48 hours prior to the application of the solvent-based acrylic sealer greatly reduced the damage caused by de-icing salts and after extensive freeze-thaw cycles.
