A thin mortar bed for use as an underlayment providing a sound, stable surface for bonding ceramic tile over Exterior Grade Plywood. Wood surfaces must be interior only and protected from moisture.

• Provides a thin, stable surface for setting ceramic tile
• Mix with water only
• Suitable Tile Types : Ceramic tile, pavers, brick, stone, terrazzo, carpet, wood, parquet, VCT, sheet vinyl flooring and laminated flooring
• Suitable Substrates : concrete, WonderBoard Lite, cement backerboards, RedGard Waterproofing and crack prevention membrane, exterior grade plywood (interior applications), ceramic tile, pavers, brick, stone, concrete terrazzo, sheet vinyl, VCT and cutback adhesive (non-water soluble)