Composeal Gold Crack Isolation Waterproof Membrane 40 Mil 5 Ft Wide - Cut to Order

Composeal Gold Crack Isolation Waterproof Membrane 40 Mil 5 Ft Wide - Cut to Order

5 Ft Wide | 40 Mil Thick

Sold in 5 sq. ft. increments (roll is 5 ft. wide). Please add the total square footage needed to your cart.

Sold by linear foot and priced by square foot. Each linear foot provides approximately 5 square feet of coverage.

Waterproofing membrane with heat-fused multi-layer construction and superior crack isolation protection.

Select the total square footage needed and your order will be cut from the master roll to the nearest linear run required.

Composeal Gold Crack Isolation Waterproof Membrane is a flexible waterproof sheet membrane designed for direct bonding of ceramic tile, porcelain tile, marble, granite, brick, and natural stone using thin-set mortar installation methods. Engineered for both residential and commercial construction, Composeal Gold provides waterproofing protection while helping isolate common shrinkage and stress cracks that can damage finished tile installations.

The heat-fused membrane construction provides long-term durability, excellent bonding strength, and protection against water intrusion and moisture migration beneath tile and stone surfaces.

Specifications

• Thickness: 40 Mil
• Roll Width: 5 Ft.
• Sold Cut to Order
• Coverage: 5 sq. ft. per linear foot
• Application: Waterproofing and crack isolation
• Installation Method: Thin-set mortar direct bond system
• Made in the U.S.A.

Benefits

Composeal Gold combines waterproofing and crack isolation into a single membrane system. The heat-fused construction helps prevent moisture migration while protecting tile and stone installations from substrate movement and common shrinkage cracks found in residential and commercial construction.

The unique membrane construction allows direct bonding of both the substrate below and the finished tile installation above, eliminating concerns associated with delamination while providing long-term waterproof performance.

Key Features and Benefits

• Heat-fused multi-layer waterproof membrane construction
• Provides waterproofing and crack isolation in a single system
• Helps protect tile and stone from common shrinkage cracks
• Excellent bonding strength for thin-set installations
• Significant labor savings through efficient seam installation
• Superior chemical, mildew, and fungus resistance
• Suitable for interior and exterior applications
• Direct bond tile and stone installation capability
• Professional-grade waterproofing performance
• Made in the U.S.A.

Ideal Applications

• Ceramic tile installations
• Porcelain tile flooring systems
• Marble and granite installations
• Natural stone flooring and wall applications
• Bathrooms and shower waterproofing
• Commercial flooring systems
• Balconies and exterior decks
• Wet rooms and moisture-prone environments
• Kitchen and laundry room tile installations
• Residential remodeling and renovation projects

Compatible Substrates

• Concrete slabs
• Cementitious backer units
• Exterior-grade plywood protected by sloped mortar beds
• Mortar setting beds
• Interior and exterior flooring systems
• Wall and deck installations

Crack Isolation Performance

Independent laboratory testing supervised by the Ceramic Tile Institute of Los Angeles and conducted using the Robinson Floor Tester confirmed Composeal Gold's ability to help protect properly installed thin-set tile systems from common substrate cracks and movement found in residential and commercial construction.

Direct Bond Capability

The outer layers of non-woven polyester are heat-fused to the waterproof membrane core, allowing direct bonding to both the substrate and finished tile installation. The heat-fusion manufacturing process helps prevent separation of the membrane layers while providing exceptional long-term performance.

Waterproofing Capability

The waterproof membrane core is based on proven Composeal shower pan liner technology and provides dependable moisture protection beneath tile and stone installations. This waterproof barrier helps prevent water migration and protects surrounding building materials from moisture-related damage.

Warranty Information

Composeal 30 and 40 mil membranes are warranted against material failure. In the event of a membrane defect, replacement material will be supplied at no charge. Warranty coverage applies only to the membrane itself and does not extend to installation methods, consequential damages, or conditions beyond the manufacturer's control. Under normal conditions, Composeal membranes are designed to last for the life of the building.

Made in the U.S.A.

Helpful Resources

• Composeal Gold Installation Guide
• Composeal Gold and Radiant Heat Flooring Systems
• Composeal Waterproofing Videos
• Solution for Types of Concrete Cracks

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