Composeal Gold 40 Mil PE Waterproofing & Crack Isolation Membrane Cut to Order

Composeal Gold 40 Mil PE Waterproofing & Crack Isolation Membrane Cut to Order

Premium 40 mil waterproofing and crack isolation membrane sold cut to order from a 5-foot-wide master roll.

Composeal Gold 40 Mil PE is a professional-grade 3-ply waterproofing and crack isolation membrane designed to protect tile and stone installations from moisture migration, substrate movement, and shrinkage cracks. This high-performance polyethylene membrane combines waterproofing, crack suppression, and uncoupling properties into a single system for residential and commercial applications.

Sold by the square foot and cut to order from a 5-foot-wide master roll.

Enter the total square footage required for your project and the quantity will automatically adjust to the nearest available increment based on the 5-foot roll width.

For example, if your project requires 22 square feet, the quantity will automatically adjust to 25 square feet and will be supplied as a single 5 ft x 5 ft section cut from a master roll.

This ensures you receive sufficient material for your installation while maintaining continuous roll lengths whenever possible.

Composeal Gold PE is ideal for custom shower projects, bathroom remodeling, wet rooms, tile floors, balconies, terraces, and other applications where a full roll is not required.

Specifications

• Material: 3-Ply Polyethylene Waterproofing Membrane
• Thickness: 40 Mil
• Roll Width: 5 Ft.
• Color: Yellow / Black
• Top Layer: Polypropylene Non-Woven
• Core: Polyethylene Waterproof Membrane
• Bottom Layer: Polypropylene Non-Woven
• Sold Cut to Order from a Master Roll
• Made in U.S.A.

Key Features

• Professional-grade waterproofing and crack isolation membrane
• Buy only the quantity needed for your project
• Protects tile and stone installations from substrate movement
• Helps prevent moisture migration beneath tile assemblies
• Provides waterproofing, crack isolation, and uncoupling performance
• Installs using modified thinset mortar
• No solvent cement required
• Suitable for residential and commercial applications
• Compatible with ceramic tile, porcelain tile, marble, granite, natural stone, and brick
• Can be used on floors and walls

Common Applications

• Custom shower waterproofing
• Bathroom remodeling projects
• Wet rooms
• Tile floor installations
• Stone flooring installations
• Balconies and terraces
• Laundry rooms
• Commercial flooring projects
• Kitchen floor waterproofing
• Crack isolation beneath tile and stone surfaces

Installation Information

Prepare the substrate by removing dust, debris, and contaminants. Apply modified or multi-purpose thinset mortar using a 1/4 in. x 1/4 in. square-notched trowel. Install the membrane edge-to-edge while smoothing toward the outer edges to eliminate trapped air and ensure full contact with the substrate.

For waterproofing installations, use 6-inch PE seam tape at all seams, transitions, and corners. Seam tape is installed using thinset mortar and does not require adhesive backing.

Why Choose Cut-to-Order?

Many waterproofing projects require only a small portion of a full roll. Purchasing Composeal Gold PE cut to order allows contractors, remodelers, and homeowners to buy only the material needed for the project while still receiving the same professional-grade waterproofing and crack isolation membrane used in larger commercial installations.

Warranty

Composeal Gold 40 Mil PE is backed by a 5-year manufacturer warranty covering guaranteed product quality.

Helpful Resources

• Composeal Gold PE Installation Guide
• Composeal Gold 40 Mil PE Specifications & Technical Data
• Composeal Waterproofing Videos

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