A concentrated translucent stain designed to change the color and enhance the natural texture of porous adobe clay tile. Aqua Stain for Saltillo is available in five designer colors: Adobe Red, Fresco Peach, Piso Blanco, Spanish Oak and Terra Cotta. May also be used as a pre-grout coating to protect porous adobe tile from grout staining when used a minimum of 2 hours before grouting. Allows moisture vapor transmission. Suitable Tile Types Sanded, unsanded and epoxy grout joints. Effective for interior and exterior applications. Limitations Grout Colorant is not recommended for use underwater in pools, ponds, or on areas subject to hydrostatic pressure Do not use solvent-based cleaners on recolored grout joints Previously applied sealers, with the exception of Aqua Mix® Penetrating Sealer, Aqua Mix® Grout Sealer, Aqua Mix® Pro-Solv, Aqua Mix® Ultra-Solv® or Aqua Mix® Sealer's Choice® Gold, must be removed to provide a bondable surface. Aqua Mix® Sealer & Coating Remover is recommended for this procedure Porous tile may require sealing to ensure colorant is not absorbed into the tile