Stone Impregnator by Harvard Chemical is an aqueous fluoro-chemical dispersion that does not contain any silicone or wax components It is a water-based, penetrating, low VOC sealer that provides an invisible, durable barrier against water, oil and stains on all porous masonry surfaces It has a natural look that does not affect the appearance of the substrate Excellent for grout joints and Seals the substrate from the inside
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