1. The substrate must be clean, even, and load bearing. The thin-set mortar used for bonding Schluter-KERDI must be appropriate for the substrate and must penetrate and engage the KERDI fleece. Generally, an unmodified thin-set mortar is used. Cut Schluter-KERDI to size prior to application.
   
   
2. Apply thin-set mortar to the substrate using a 1/4" x 3/16" (6 mm x 4 mm) V-notched trowel (Note the open time of the mortar). Press Schluter-KERDI fully into the bond coat. Work the KERDI into the mortar by applying pressure to the membrane with the flat side of the trowel (held at an angle) in smooth, diagonal sweeps. Air bubbles must be avoided.
   
   
3. Seams can be constructed by overlapping the edges of the KERDI 2" (5 cm) or by abutting the edges and covering the joint with Schluter-KERDI-BAND, using an unmodified thin-set mortar.
   
   
4. For inside and outside corners, adhere pre-cut Schluter-KERDI-KERECK corners. For floor/wall connections, use the Schluter-KERDI-BAND. For pipes, use the Schluter-KERDI-KM pipe sleeve.
   
   
5. Connections to fixed building elements can be achieved by using Schluter-KERDI, KERDI-BAND, or KERDI-FLEX in conjunction with Schluter-KERDI-FIX, suitable trowel-applied waterproofing materials such as urethane or similar, which require atmospheric moisture to cure, or other suitable sealing compounds.
   
   
6. Schluter-KERDI shall be separated at existing expansion, structural, or flexible edge joints. Cover the joints with Schluter-KERDI-FLEX. To allow for greater movement, the center section of the Schluter-KERDI-FLEX can be tucked into the cavity of the expansion joint prior to bonding.
   
   
7. Once the entire membrane - with seams, corners, and connections - has been completely bonded, and therefore waterproofed, the covering may be applied.
   
   Note: Prior to setting tile, if the assembly is to be water tested, wait 24 hours to allow for final set of the mortar before testing to ensure waterproof performance of the assembly at seams and connections.
   
   
8. For tile installations using the thin-bed method, apply unmodified thin-set mortar directly to the exposed Schluter-KERDI surface and install the tiles, ensuring full coverage. For acidresistant coverings, use an epoxy adhesive to set and grout the tile.

Note: Where Schluter-KERDI-DRAIN is used in shower applications, walls must be waterproofed up to the height of the showerhead.