DITRA is a polyethylene membrane with a grid structure of square, cut-back cavities and an anchoring fleece laminated to its underside. In conjunction with tiled coverings, Schlüter®-DITRA forms an uncoupling, waterproofing, and vapor pressure equalization layer.
Designed for ceramic tile and dimension stone installations, DITRA serves as an uncoupling layer for problematic substrates, a waterproofing membrane, and a vapor pressure equalization layer to accommodate moisture occurring at the underside of the substrate. To bond DITRA, use a bonding mortar that is appropriate for the substrate.
Apply the mortar using a 1/4" x 3/16" (6 mm x 4.5 mm) V-notched trowel. The anchoring fleece on the underside of Schlüter®-DITRA must be fully engaged in the mortar to provide a mechanical bond to the substrate. Using the thin-bed method, set the tile covering directly on the Schlüter®-DITRA in such a way that the tile adhesive becomes mechanically anchored in the square, cut-back cavities of the Schlüter®-DITRA matting. Schlüter®-DITRA is also suited as a support matting for covering materials such as stucco, plaster, or screed.
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