DITRA - Polyethylene membrane with a grid structure - 30m2.

Schluter Ditra is a waterproofing polyethylene membrane with a grid structure
  • Schluter - DITRA is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configuration and an anchoring fleece laminated to its underside. Designed for tile and natural stone installations, Schlüter - DITRA serves as a waterproofing membrane, a vapour pressure equalisation layer to accommodate moisture occurring at the underside of the substrate and an uncoupling layer for problematic substrates.
  • The substrate must be even and load bearing. To bond Schluter - DITRA, use a bonding adhesive that is appropriate for the substrate. Apply the adhesive using a 3 x 3mm or 4 x 4mm notched trowel. The anchoring fleece on the underside of Schluter - DITRA must be fully engaged in the adhesive to provide a mechanical bond to the substrate. Please observe the open time of the bonding adhesive.
  • Using the thin-bed method and following all applicable industry standards, set the tile or stone covering directly on the Schluter - DITRA in such a way that the tile adhesive becomes mechanically anchored in the square, cut back cavities of the Schluter - DITRA matting.
  • Summary of functions:
  • Uncoupling
  • Schluter - DITRA uncouples the floor covering from the substrate and neutralises the tensions between the substrate and the tile covering that result from the varying deformations of the materials. Likewise, stress cracks in the substrate are bridged and are, therefore, not transferred to the surface covering.
  • Waterproofing
  • Schluter - DITRA is a waterproof polyethylene membrane with a relatively high vapour diffusion density. Provided the joints, floor to wall transitions and connections to building fixtures are properly installed, Schluter - DITRA creates a waterproofing assembly with the tile covering that meets the requirements of the mandatory guideline "Recommendations on Waterproofing in Conjunction with Panelling and Tile and Paver Coverings in Interior and Exterior Applications" published by the German Construction Industry Association (ZDB).
  • Exclusively use system approved thin-bed mortars for areas that require CE conformity or compliance with the general certificate of national technical approval. Please contact us at the address shown in this data sheet for more details.
  • Therefore, Schluter - DITRA protects the substrate against damage due to moisture penetration and aggressive substances.
  • Equalisation of vapour pressure.
  • The interconnected air channels between the cavities on the underside of the Schluter - DITRA matting remain open. This allows moisture in the substrate to evaporate, therefore neutralising vapour pressure.
  • Load distribution (load impact)
  • The bottom of the square cavities in Schluter - DITRA, which are filled with thin-bed adhesive, directly transfer the load impact on the tile covering to the substrate. As a consequence, tile coverings installed on top of Schluter - DITRA are highly load resistant. If high traffic loads are expected (e.g. in industrial locations), the tiles selected for the installation must be of the corresponding thickness and pressure stability. The requirements of the mandatory guideline "Ceramic Floor Coverings With High Impact Resistance" published by the German Construction Industry Association (ZDB) must be followed.
  • In areas with high impact loads, the tiles must be fully embedded in the thin-bed adhesive. The contact surface of Schluter - DITRA amounts to approximately 50% of the total surface. This can reduce the load bearing capacity in case of point loads. For high point loads, select a tile thickness that is capable of distributing the loads. Ceramic tile coverings should not be exposed to the direct impact of hard objects. The tile dimensions should be at least 50 x 50mm.
  • Adhesive properties
  • Due to the bonding of the anchoring fleece into the thin-bed adhesive on the underside and the mechanical anchoring of the adhesive in the cut back cavities, Schluter - DITRA achieves a good adhesion of the tile covering to the substrate (laboratory test values: ~ 0.2N/mm2). Consequently, Schluter - DITRA can be used for wall and floor coverings. Anchor plugs may be used with wall coverings if necessary.

KERDI - Waterproof membrane for substrate protection - 5/30m2.

Schluter Kerdi - waterproof membrane for substrate protection
  • Schluter KERDI is a crack bridging waterproof membrane made of soft polyethylene, which has been covered on both sides with a special fleece webbing to anchor the membrane in suitable tile adhesive.
  • Schluter KERDI has been developed for bonded waterproofing assemblies with coverings of tiles and natural stone. The waterproofing membrane should be bonded to an even, load bearing substrate with an appropriate tile adhesive. The tiles are laid directly on Schluter - KERDI using the thinbed method. Other trowel applied covering materials or plaster may also be used.
  • Schluter KERDI-DS is a waterproofing membrane and vapour barrier bonded to a tile covering, e.g. for use in swimming pools and spa areas, as well as for commercial applications with high humidity levels.
  • Vapour barriers are suggested for moisture sensitive substrates such as wood, plasterboard and gypsum plaster.
  • Accessories for Schluter KERDI include internal and external corners, as well as pipe collars. To seal butt joints or corner joints, Schlüter®-KERDI-KEBA, in widths of 8.5, 12.5, 15, 18.5 and 25cm is available. Schluter KERDI-FLEX, in widths of 12.5cm or 25cm, is used to seal over expansion joints or flexible edge joints.


Schluter Kerdi Keba Band
Schluter Kerdi Flex
Schluter Kerdi KM Pipe Collar
Schluter Kerdi Kereck External
Schluter Kerdi Kereck Internal
Schluter Kerdi Kers
Schluter Kerdi Coll Sealant Adhesive
Schluter Kerdi Fix Elastic Adhesive
Schluter Kerdi Drain
  • Schluter KERDI KEBA
  • Sealing band to seal mat connections and wall to floor connections.
  • Schluter KERDI FLEX
  • Waterproofing band for sealing movement joints
  • Schluter KERDI KM - Collar pipe
  • Completely seam sealed, prefabricated parts to produce internal and external corners, while Schluter KERDI-KM are collars for pipes.
  • Schluter KERDI KERECK - Pre cut internal and external corner.
  • Completely seam sealed, prefabricated parts to produce internal and external corners.
  • Schluter KERDI KERS - Pre fabricated internal and external corner.
  • Schluter KERDI-KERS are seam sealed pre fabricated parts for secure waterproofing of corner areas of Schluter KERDI-SHOWER.
  • Note: Schluter KERDI-KERS 20 products are suitable for showers with side lengths of 80-110cm. Schluter KERDI-KERS 28 products are suitable for showers with side lengths of 110-150cm.
  • Schluter KERDI COLL - Two component sealing adhesive.
  • Two component sealant adhesive based on a solvent free acrylate dispersion and a reactive cementitious powder.
  • Schluter KERDI FIX - Elastic installation adhesive.
  • Elastic installation adhesive made of an MS polymer. It is suitable for creating tight seals at the transition between bonded waterproofing assemblies made with Schluter KERDI and other construction elements such as balcony and terrace doors, window components, metal ducts or Schluter BARA edge profiles.
  • Furthermore, Schluter KERDI-FIX is ideally suited for joining Schluter KERDI-BOARD panels or for adhering them to construction fixtures. Schluter KERDI-FIX can also be used for adhering other materials.
  • Schluter KERDI DRAIN
  • Schluter KERDI-DRAIN is a floor drain system for the easy and reliable connection of drainage systems to bonded waterproofing assemblies.
  • As specified in the information sheet of the German Construction Association (ZDB), these are a generally recognised technical principle.
  • The Schluter KERDI collar is attached to the large, trapezoid perforated and fleece coated adhesive flange of the bonding flange insert as a sealing connection to the bonded waterproofing assembly.
  • Schluter KERDI-DRAIN products have a modular structure and can be individually assembled to match every requirement. A variety of grate designs can be combined with different vertical or horizontal drain bodies with or without odour traps.
  • Schluter KERDI-DRAIN-BASE is an especially low floor drain that is suitable for the installation of conventional floor level shower designs or for combination with Schluter KERDI-SHOWER floor elements.
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