CLEANERS

This Old Grout & Stone's Easy Etch is a tile and grout cleaner designed to removes grout and mortar smears, mineral deposits and rust stains. This industrial...See more » This Old Grout & Stone's Easy Etch is a tile and grout cleaner designed to removes grout and mortar smears, mineral deposits and rust stains. This industrial strength concentrated acid based tile and grout cleaner is specially formulated to etch grout to bond with This Old Grout’s Stain Sealer. Use on acid-resistant tile, stone or masonry surfaces. This product is not for use on natural flagstone, marble travertine, limestone or any other acid sensitive surface. A pre-test for resistance should be performed prior to use. Coverage depend on porosity of substrate: 1000-10000 sq.ft./gallon.See less »