Custom RedGard® Waterproofing & Crack Prevention Membrane is a ready-to-use, elastomeric liquid membrane designed to create a seamless, durable barrier for tile, stone, and masonry substrates. Formulated to bridge hairline cracks and resist mold and mildew growth, it delivers professional-grade protection for wet and dry installations alike.

Ideal for showers, countertops, floors, and walls, this 1-gallon membrane applies easily by roller, trowel, or sprayer. Once cured, it forms a flexible, water-tight layer that meets ANSI A118.10 standards and helps safeguard your waterproofing system from leaks and structural movement.

Key Features

• Seamless waterproofing and crack prevention barrier
• Ready-to-use, no mixing required
• Elastomeric membrane bridges cracks up to 1/8″ (3 mm)
• Easy application by roller, trowel, or sprayer
• Meets ANSI A118.10 and IPC/UPC shower pan liner requirements
• Mold* and mildew-resistant formulation
• Ideal for tile, stone, and masonry substrates

⚠️ WARNING: This product can expose you to Silica, crystalline known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.