Schluter®-KERDI-FIX is a single component, waterproof sealing and bonding compound with a silane-modified polymer base. KERDI-FIX can be used to a waterproof pipe and valve protrusions in the Schluter®- Shower System in conjunction with the Schluter®-KERDI membrane and Schluter®- KERDI-BOARD. KERDI-FIX is required to bond the KERDI membrane to the stainless steel Schluter®-KERDI-DRAIN bonding flange and can be used to bond KERDI to building elements such as bathtubs, window elements, and door frames. KERDIBOARD can be adhered with KERDI-FIX in various applications, such as countertops, partitions, and other building elements.