Shower Waterproofing Membrane Roll, 5 in x 50 Ft, 21 Sq Ft, 20 Mil | Blue HDPE roll for shower membrane seams, corners and wall-to-floor joints; bonds with thin-set mortar for a secure install
Shower Waterproofing Membrane Roll, 5 in x 50 Ft, 21 Sq Ft, 20 Mil | Blue HDPE roll for shower membrane seams, corners and wall-to-floor joints; bonds with thin-set mortar for a secure install
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About This
- WATERPROOF MEMBRANE STRIP FOR SHOWER SEAM SEALING & JOINT WATERPROOFING – 5 In x 50 FT roll, 21 Sq Ft, 20 Mil (0.5mm) thick. Compact HDPE waterproofing strip sized for single shower installations, small bathroom tile projects, and targeted seam repair work. Provides moisture barrier protection at floor-to-wall transitions, drain perimeters, inside corners, curb edges, and pipe penetrations.
- BONDS TO THIN-SET MORTAR ON ALL STANDARD TILE SUBSTRATES – Dual fleece-faced surface bonds to unmodified thin-set mortar without primers or specialty adhesives. Suitable for concrete, cement board, plywood, marble, ceramic, porcelain, and natural stone. For shower walls and floors, bathroom tile underlayment, kitchen floors, sauna rooms, steam rooms, and laundry areas — indoor and outdoor, residential and commercial applications.
- COMPACT ROLL FOR SINGLE SHOWER PROJECTS & REPAIR WORK – 21 Sq Ft provides sufficient coverage for a complete set of floor-to-wall seams in a standard shower installation, a targeted bathroom repair, or small wet area joint sealing. Cuts with scissors or utility knife. Folds cleanly around corners, drain edges, and curbs without tearing. No excess material waste for smaller projects.
- 20 MIL DURABLE HDPE FOR MOISTURE RESISTANCE AT SEAMS & JOINTS – Polyethylene core resists water vapor transmission at joints and transitions in shower enclosures, steam rooms, saunas, and continuously wet areas. Helps maintain structural integrity and acts as a physical moisture barrier against subfloor water exposure at treated seam locations. Suitable for freeze-thaw environments and standard wet area conditions.
- FOR DIY BATHROOM TILE PROJECTS & PROFESSIONAL REPAIR APPLICATIONS – Suitable for DIY homeowners completing first bathroom tile installations or targeted shower repairs. Also used by professional tile installers for compact repair jobs and on-hand stock for seam work on larger projects. Each roll is inspected before shipping. Contact our customer support team for product or installation questions.

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