The Backer Board PRO External Tanking Corner is made for waterproofing the corners of wet room assemblies.

Can also be used on joints between shower liner and floor decoupling membranes.

Can be fixed in place using a suitable cement based adhesive or rubberised tanking gum such as Mapegum.

Also compatible with tile backer boards and electric heating.

Perfect with Wet Room & Shower Rooms. Completely waterproof, when fixed a flexible tile adhesive.