CERESIT® CL 87 is used for permanently watertight sealing of outer corners in conjunction with waterproof flexible CERESIT waterproofing products under ceramic coverings made of tiles and slabs. For indoor and outdoor use. For floor and wall. Available tape size: 120 mm width
The sealing tape CERESIT CL 87 is placed between the layers of sealing materials. The first layer should be applied, then the tape should be pressed and immersed into the second layer of the sealing material.
Place the CERESIT CL 87 membrane on the floor and cut it to size using a cutting knife and scissors. Comb a certified CERESIT tile adhesive onto the prepared substrate using a notched trowel (notch size 4 mm). Place the membrane into the adhesive bed within the open time of the adhesive.
In case of sealing the expansion gaps CERESIT CL 87 ULTRATAPE should be pressed into the gap and the hollow should be formed to ensure the possibility of deformation. Before mentioned characteristics are based on practical experience and applied testing.
CERESIT CL 87 is a waterproof sealing corner element for expansion joints and deformed joints between ceramic tiles. CL 86 is used for application in kitchens, balconies and terraces as material to be placed between layers of sealing materials.
Tape CERESIT CL 87 is used for reinforcing flexible watertight layers CERESIT CL 50, CL 51, CR 166 and for seal coating CERESIT CR 90 at the places of connection with horizontal edges, expansion gaps etc.
Application of CERESIT CL 87 should be performed in dry conditions with the ambient temperature from +5 to +25°C. Given data was obtained at an ambient and material temperature of +23° C and 50 % relative air humidity. Please note that under other climatic conditions hardening can be accelerated or delayed and that the product itself is subject to local conditions such as amount of water and hardening.