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CERESIT CL 69 ULTRA-TIGHT MEMBRANE

  • Waterproof / vapour - retarding
  • Chemical resistant
  • No drying time, rapid work progress

Features and benefits

Crack bridging 3-layer film for waterproofing and uncoupling membrane, suitable for permanently wet areas.

Properties

Description

CERESIT® CL 69 ULTRA-TIGHT is crack-bridging, 3-layered waterproofing and uncoupling membrane. It is a trouble-free alternative to liquid-applied waterproofing products for the composite waterproofing of balconies and terraces and wet rooms. It ensures rapid work progress. Due to its uncoupling effect, CL 69 is suitable for the installation of ceramic tiles and slabs on critical substrates as well as for the removal of tile coverings. Available size: 30 x 1 m roll

Documents and downloads

How to use

CERESIT Tiling CE60 LP Instructions Illustration Step 1

AFTER APPLYING CERESIT CL 69

After installing the membrane on wall areas, ceramic tiles and slabs can be fixed directly without any waiting time or further priming coat.

CERESIT Tiling CE60 LP Instructions Illustration Step 2

SUBSTRATE PREPARATION FOR APPLICATION OF CERESIT CL 69

The substrate must be solid, dry, clean and free of substances that may impair adhesion. A few isolated cracks in the screed do not cause a problem as long as the crack edges are level. Before applying the CL 69 membrane, pipe penetrations as well as wall and floor connections (gullies etc.) should be waterproofed with the pre-fabricated CERESIT system components. 

CERESIT Tiling CE60 LP Instructions Illustration Step 3

APPLICATION OF CERESIT CL 69

Place the CERESIT CL 69 membrane on the floor and cut it to size using a cutting knife and scissors. Comb a certified CERESIT tile adhesive onto the prepared substrate using a notched trowel (notch size 4 mm). Place the membrane into the adhesive bed within the open time of the adhesive. 

Related how to guides

  • Premium Tiling System
    Providing Tiling Solutions
  • Laying Large Tiles
    Laying Large Tiles
  •  Preparation – testing the substrate
    Preparation – Testing The Substrate
  • Terraces, balconies and patios
    Terraces, Balconies And Patios
  • Bathrooms & Kitchens
    Bathrooms & Kitchens
  • Swimming & Wellness
    Swimming & Wellness
  • Tiling In Industrial Buildings
    Tiling In Industrial Buildings
  • Solutions For Special Formats & Substrates
    Solutions For Special Formats & Substrates
  • Heated floor systems
    Heated Floor Systems
  • Sound-reduction / Decoupling System
    Sound-reduction / Decoupling System

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Frequently asked questions