S518
3 mm Tile Uncoupling Membrane, Waterproof & Crack-Relief Underlayment with Mesh Reinforcement, 1 m × 10 m

Suitable Substrates

  • Concrete
  • Cementitious screeds
  • Anhydrite screeds
  • Existing ceramic tile floors
  • Resin flooring
  • Timber floors
  • Plywood or OSB wood-based panels

Note: Proper surface preparation, priming, and suitable fixing products are required for optimal performance.

For horizontal floor applications only

Product Description

The S518 3 mm Tile Uncoupling Membrane is designed to help protect tiled and stone floors from stress caused by substrate movement. It provides effective uncoupling between the substrate and tile layer, helping reduce stress transfer and improve the long-term stability of tile installations.

Manufactured from durable polyethylene (PE) with a structured surface and reinforced mesh layer, the membrane provides reliable mechanical anchoring, load distribution, and waterproof protection. It is suitable for ceramic tiles, porcelain tiles, and natural stone in residential and light commercial floor applications.


Key Benefits

  • Uncoupling & Stress Relief
    Separates the tile layer from the substrate, helping accommodate minor substrate movement and reduce the risk of cracking and delamination.
  • Waterproof Protection
    Provides a waterproof barrier beneath the tile installation and helps protect the substrate from moisture penetration.
  • Mesh-Reinforced Structure
    The reinforced mesh layer helps improve tensile strength and bonding performance with suitable tile adhesives.
  • Load Distribution
    Helps distribute loads across the tile installation for improved stability and durability.
  • Easy Installation
    Lightweight and flexible, the membrane is easy to cut, handle, and install.

Material

  • Polyethylene (PE) with mesh reinforcement
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