KERDI-BOARD-E PANEL Schluter-KERDI-BOARD-E is an L-shaped panel used to create corners and pipe or column coverings. The panels feature a V-shaped groove and are shipped in a space-saving flat design, which makes them easy to store. The flat panels are also quick to cut to the necessary dimensions. Thin-set mortar, Schluter-KERDI-FIX adhesive, or double-sided adhesive tape is applied to the V-groove. The panels are then folded prior to installation.