Aqua Mix Grout Sealer Dual Protection - Penetrates and Coats 24 oz Spray Aqua Mix Grout Sealer is a water-based sealer that resists common contaminants Repels oil-based and acid-based contaminants, and inhibits mildew and bacteria Formula lasts up to 5 years and outperforms silicone sealers Ideal as a routine cleaner against food stains, grease, oil, and more Recommended for cementitious sanded and un-sanded porous grout joints