Waterproofing Membrane Tile Underlayment for Bathroom Shower Flooring Wall 20mil

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Product Description

  • Product Description

    • Our waterproof membrane is a flexible sheet membrane with a modified polyethylene core and non-woven polypropylene on both sides. The outer structure features continuous filament fibers, which enhance the membrane’s mechanical strength and toughness. It provides reliable protection for shower walls and other tiled areas exposed to moisture, giving you complete peace of mind.
    • With an ideal thickness, it can be freely cut and folded into any perfect size and shape. It can be fixed with ordinary thin mortar and saves the use of corner accessories.
    • This waterproof floor liner is widely applicable to shower rooms, bathrooms, steam rooms, kitchens, laundry rooms, bathtub bases, enclosed balconies, living rooms and dining rooms.
    • Compatible with tiles, ceramics, wall tiles, wooden boards and more. It effectively prevents damage caused by water accumulation and steam.
    • Adopting a 3-layer structure: modified polyethylene core, non-woven polyethylene on both sides and continuous filling fibers, ensuring long service life for years of use.


    Product Overview

    This is a high-performance flexible waterproof roll. It is thermally compounded with an LLDPE (Linear Low-Density Polyethylene) core layer and double-sided polypropylene non-woven reinforcement layers. It combines the excellent waterproof and chemical corrosion resistance of polyethylene with the superior friction coefficient and cement adhesion performance of polypropylene non-woven fabric. It is a reliable, cost-effective and eco-friendly solution for building waterproofing projects.
    • Product Name: Polyethylene Waterproof Membrane
    • Color: Light Blue
    • Material: Thermally compounded LLDPE core layer + double-sided polypropylene non-woven fabric reinforcement
    • Size: 3.3x32.8ft /3.3x98.5ft 
    • Thickness: Approx. 0.65mm
    • Weight: Approx. 300g/m²
    • Supply Form: Roll
    • Package: Carton Box

    Main Application Fields

    • Building roof waterproofing (flat roof & sloped roof)
    • Underground structure waterproofing (basement, tunnel, foundation)
    • Indoor waterproofing (bathroom, kitchen, swimming pool)
    • Water conservancy projects (reservoir, canal)
    • Compound waterproof system combined with other waterproof materials

    2. Installation Instruction

    • Base Requirement

    The base surface (such as concrete slab) must be firm, flat, dry and clean, free of oil stains, dust, sanding and hollow areas.
    Internal and external corners shall be made into circular arcs with a radius ≥ 50mm.
    The moisture content of the base surface is recommended not to exceed 9%.

    • Weather Condition

    Construction ambient temperature: +5°C ~ +35°C.
    Do not construct in rainy, snowy, windy weather or when condensation appears on the base.

    • Materials & Tools Preparation

    Waterproof membrane
    Adhesive (Not Included): Cement-based polymer adhesive complying with DIN EN 12002 standard is recommended.

    Auxiliary Tools: Mixer, mixing bucket, bristle brush / rubber scraper, chalk line, tape measure, cutting knife, compression roller.


    Package List

    1 × Waterproof Membrane 

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