Name: Schluter DITRA PS Self Adhesive Decoupling Matting
Brand: Schluter
Availability: InStock

Description

Schluter DITRA PS Self Adhesive Decoupling Matting is a self adhesive version of the original decoupling membrane, Schluter DITRA Matting. It is a polypropylene mat with EasyCut gridlines as well as square, dovetailed EasyFill recesses and an anchoring fleece and pressure sensitive adhesive laminated to the underside. It is a universal substrate for tile coverings that forms an uncoupling and vapour pressure equalisation layer.

Schluter DITRA PS Self Adhesive Decoupling Matting is available in 25m² rolls or 0.72m² individual mats, which measure 785mm x 980mm per mat.

Schluter DITRA PS Self Adhesive Decoupling Matting is exclusively intended for installation on floors in interior areas. Substrates for installing the product must be level, clean, dust free, dry, smooth, rigid and load bearing, with no deflection. To install, peel the release film off the bottom and place the mat on the substrate. It can be lifted and re-positioned providing no pressure has been applied to it. However, once pressure has been applied, the adhesive sticks the mat firmly to the substrate. Using the thin-bed method, tiles can be installed in accordance with the applicable regulations immediately after adhering the mat.

Summary of functions:

Uncoupling: Schluter DITRA PS Self Adhesive Decoupling Matting uncouples the covering from the substrate and neutralises stresses between the substrate and the tile covering that result from various deformations. It also bridges tension cracks from the substrate and prevents them from affecting the tile covering.
Waterproofing: Schluter DITRA PS Self Adhesive Decoupling Matting is waterproof and suitable for use in wet areas, provided the abutting joints are sealed with Schluter-KERDI-KEBA and Schluter-KERDI-COLL-L. Note: Schluter DITRA PS does not have ETA or abP certification. If ETA or abP certification is required, we recommend using the original Schluter DITRA Matting which is bonded to the substrate with cementitious tile adhesive.
Vapour pressure equalisation: The air channels of Schluter DITRA PS Self Adhesive Decoupling Matting, which remain open on the underside, also enable vapour pressure equalisation in case of moisture impact from below.
Load distribution (load induction): Tiles installed over Schluter DITRA PS in floor areas should have a minimum size of 5 x 5 cm and a thickness of at least 5.5 mm. The tile adhesive-filled, square recesses of Schluter DITRA PS transfer mechanical stresses impacting the tile covering directly to the substrate.
That makes tile coverings installed on Schluter DITRA PS Self Adhesive Decoupling Matting especially durable. The tiles for the corresponding application area must be sufficiently thick and have adequate compressive stability to withstand high traffic loads (e.g. in commercial areas) or large point loads (such as concert pianos, forklifts, or shelf systems). The information and tile thicknesses specified in the ZDB information sheet “Ceramic floor coverings with high mechanical stress resistance”, valid in Germany, must be observed. Tiles in high-load areas must be fully embedded in the tile adhesive. The impact of hard objects must be avoided on ceramic coverings.
Bonded assembly: The special adhesive layer on the underside anchoring fleece of Schluter DITRA PS Self Adhesive Decoupling Matting sticks well to the substrate, while the mechanical anchoring of the tile adhesive in the under-cut square indentations results in an excellent bond with the tile covering.

Material:

Schluter DITRA PS Self Adhesive Decoupling Matting is a polypropylene mat with square dovetailed recesses in EasyFill design and imprinted EasyCut gridlines. The anchoring fleece laminated on the underside features a special thermoplastic adhesive layer that is not water soluble and free of solvents. The material thickness measured across the stud structure is approx. 3.6 mm. Schluter DITRA PS Self Adhesive Decoupling Matting is not UV-stable and must be protected against prolonged exposure to direct sunlight. The product must be stored in a dry location above freezing. It is best to install DITRA PS at ambient temperatures of 5-30 degrees C.

Material properties and areas of application:

Schluter DITRA PS Self Adhesive Decoupling Matting is non-rotting, stretchable and crack-bridging. In addition, it is largely resistant to the effects of aqueous solutions, salts, acids and alkalis, many organic solvents, alcohols and oils. The adhesive layer is not water soluble and permanently attaches to coverings that are free of solvents, plasticisers and oils.
Product resistance to special local conditions must be verified separately based on the anticipated concentration, temperature and length of exposure. The product has a relatively high water vapour diffusion seal. The material is non toxic and physiologically harmless. The polyethylene release film and the packaging material can be fully recycled.
Schluter DITRA PS Self Adhesive Decoupling Matting can be used in a wide variety of application areas. Product suitability must be verified in applications exposed to chemical or mechanical stresses. The information provided below is intended as a general guideline. Depending on the system, stepping on coverings installed over Schluter DITRA PS Self Adhesive Decoupling Matting with hard shoes or tapping them with a hard object may produce a hollow sound. Schluter DITRA PS Self Adhesive Decoupling Matting is exclusively intended for installation on floors in interior areas.

Substrates for Schluter DITRA PS Self Adhesive Decoupling Matting:

Concrete
Cement screeds
Gypsum based screeds
Heated screeds
Screed boards and composite panels
Plywood, chipboard and compressed wood panels
Hardwood floors
Vinyl coverings and coatings

Installation:

The substrate must be free of components that may inhibit bonding, load bearing and levelling. Any necessary levelling work must be completed before installing Schluter DITRA PS Self Adhesive Decoupling Matting.
Thoroughly vacuum the substrate prior to installation to remove all dust.
Note: Although it is not mandatory to apply a primer, a standard primer without coarse components such as quartz sand may be used if the condition of the substrate necessitates it.
Cut the DITRA PS to size and lay it out on the floor. Now remove the release film from the fleece on the underside and press the mat evenly on the substrate, using a float or roller. For efficient installation, precisely align DITRA PS and keep the material tightly stretched with light tension when placing it on the substrate.
To prevent any damage to the installed Schluter DITRA PS Self Adhesive Decoupling Matting or detachment from the substrate, it is recommended to protect it from mechanical stresses, e.g. by setting out running boards (particularly in the centre areas used for material transport).
Immediately after adhering DITRA PS, tiles can be installed in the thin-bed method, using a cementitious tile adhesive that meets the requirements of the respective covering. The notch size of the trowel must match the tile format.
Observe the curing time of the cementitious tile adhesive. All tiles must be solidly embedded in the adhesive. Full contact according to the applicable professional regulations is especially relevant for coverings exposed to high mechanical stresses.
Note: Fill the square indentations using the smooth side of the notched trowel (mortar requirement approx. 2.0 kg/m2) then groove the cementitious tile adhesive with the notched side of the trowel in a single action. Depending on the tile size or the conditions on site, it may be more efficient to first fill the indentation with the tile adhesive to be used for the installation.
Tile installation can begin once the trowelled surface is ready to bear weight. Note that the substrate must be free of dust for the installation. If applicable, vacuum the substrate prior to installation or apply a primer in case of doubt. Review any potential material incompatibilities beforehand. If using covering materials with a side length that exceeds 30 cm, we recommend a quick-setting tile adhesive with crystalline water binding capacity for fast curing and drying of the mortar.
Follow the instructions in this data sheet and other relevant technical regulations to install movement joints for perimeter, edge and connection joints.

Waterproofing with Schluter DITRA PS Self Adhesive Decoupling Matting:

Unless a certified bonded waterproofing assembly is required, Schluter DITRA PS Self Adhesive Decoupling Matting can serve as a waterproofing layer, provided the abutting membrane seams and the connections to installed components and upright building structures are carefully sealed. If national technical approval (abP) or European approval (ETA = European Technical Assessment) is needed, choose the DITRA variants for installation with cementitious tile adhesives that have the corresponding certification.

DITRA-PS protects the substrate from damage caused by permeating moisture and aggressive substances. For waterproofing joints, trowel the sealing adhesive Schluter-KERDI-COLL-L over the abutting joints and embed the sealing band Schluter-KERDI-KEBA in a minimum width of 12.5cm over the joints.

To waterproof floor-wall transitions, adhere KERDI-KEBA over DITRA-PS on the floor and directly on the substrate in wall areas in the corresponding width. The sealing band must have a coverage of at least 5 cm. KERDI-KEBA can also be used to create functional connections to fixed structural components such as door and window frames made of metal, wood or plastic. The first step is to apply Schluter-KERDI-FIX to the adhesive surfaces of the structural elements. The remaining width is then fully adhered to DITRA-PS with KERDI-COLL-L.

The suitability of KERDI-FIX for the respective materials of the structural elements must be verified in advance. Separate DITRA-PS at existing movement joints or structural movement joints and seal the abutting joints with Schluter-KERDI-FLEX. KERDI-FLEX should also be used for flexible finishing edges. As an alternative, a sufficient loop of KERDI-KEBA can also be used.