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GURU G-FLEX Uncoupling Membrane for Tile Underlayment & Waterproofing

GURU G-FLEX Uncoupling Membrane is designed for reliable crack isolation and waterproofing on residential and commercial tile installations. Its durable polyethylene construction with geotextile backing prevents substrate movement from damaging tiles while providing long-lasting moisture protection. Lightweight, easy to install, and ANSI-certified, it ensures professional results and superior tile performance in high-traffic and demanding environments.

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Availability:
15 in stock!
Availability:
8 in stock!
SKU GURU-G-FLEX-MEMBRNE-150-ILU5100
Save $94.74 Save $46.64
Original price $310.92
Original price $44.97 - Original price $631.59
Original price $310.92
Current price $264.28
$38.21 - $536.85
Current price $264.28
Size: 150 sq ft (3'3" x 45'9")

Description

GURU G-FLEX Uncoupling Membrane is a high-performance tile underlayment designed for tile installers and contractors seeking reliable crack isolation and waterproofing solutions. Engineered with a durable polyethylene membrane featuring a raised circular pattern backed by geotextile fiber, G-FLEX excels as an uncoupling membrane to prevent tile cracking caused by substrate movement while also serving as an effective waterproofing membrane. Its robust design meets and exceeds ANSI standards, making it ideal for demanding commercial and residential tile installations.

Key Features of the GURU G-FLEX Uncoupling Membrane

  • Uncoupling Membrane: Prevents cracks from substrate movement, protecting tile integrity.
  • Waterproofing Membrane: Acts as a vapor barrier, managing moisture and vapor pressure from substrates.
  • Durable Construction: Made of 0.5 mm high-density polyethylene (HDPE) with thermo-bonded polypropylene fiber backing.
  • ANSI Certified: Complies with ANSI A118.10 and ANSI A118.12 standards (IAPMO FILE 9205 and 9990).
  • Versatile Applications: Suitable for food plants, dairies, breweries, airports, kitchens, and more.
  • Heavy-Duty Thickness: 1/8” membrane thickness ensures extra durability for high-traffic areas.

Specifications

Specification Details
Material Thickness 0.02”
Membrane Thickness 1/8” (3 mm)
Core Material High-Density Polyethylene (HDPE)
Backing Material Thermo-bonded Polypropylene Fiber
Color Red
Temperature Range -22°F to +176°F

Usage Tips for Optimal Performance

For best results, install the GURU G-FLEX membrane over clean, dry substrates. Use appropriate thin-set mortar compatible with uncoupling membranes to secure the membrane before tiling. This tile underlayment provides effective crack isolation and waterproofing when properly installed, extending the life of tile installations in both residential and commercial settings.

Choose the GURU G-FLEX Uncoupling Membrane for superior tile protection with reliable crack isolation and waterproofing. Order today to provide your tile projects with the industry-leading membrane trusted by professionals.

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Frequently Asked Questions

What is the GURU G-FLEX Uncoupling Membrane used for?
The GURU G-FLEX Uncoupling Membrane is used as a tile underlayment to prevent cracking caused by substrate movement. It also provides waterproofing protection, making it ideal for both residential and commercial tile installations.
How does the GURU G-FLEX Membrane protect tiles?
The GURU G-FLEX Uncoupling Membrane absorbs movement from substrates, isolating cracks and protecting tiles from damage. Its durable polyethylene core with fiber backing ensures long-lasting performance under heavy foot traffic and dynamic surfaces.
Can the GURU G-FLEX Membrane be installed on wet surfaces?
No, the GURU G-FLEX Uncoupling Membrane should be installed over clean, dry substrates. Proper installation with compatible thin-set mortar ensures optimal crack isolation and waterproofing performance.
Where can the GURU G-FLEX Membrane be used?
The GURU G-FLEX Uncoupling Membrane is suitable for demanding environments such as kitchens, bathrooms, commercial spaces, and high-traffic areas. It provides reliable crack isolation and waterproofing across a wide range of residential and commercial tile projects.
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