CERESIT CL 51 EXPRESS 1-K

Features and Benefits

Flexible 1-component sealing film for use under tileas and slabs in domestic areas

Properties

Waterproof
Fast drying
Crack-bridging
For indoor use
For wet areas
For wall and floor application

CL 51 1-component sealing film produces seamless and jointless sealing under ceramic coverings in damp and wet areas inside (e.g. in private bathrooms, toilets, kitchens). In the case of floor constructions with insulating layers CL 51 is applied directly onto the load-distribution layer (screed). Also suitable for use on heated screeds.

Documents and Downloads

Download TDS

Step by step

Preparation

Check that the substrate is dry, solid, load-bearing, dimensionally stable and clean, free of substances which can cause separation (e.g. separating agents, loose particles, dust, efflorescence, dirt). If needed, prime them with CT 17, CT 19 or CN 94. Refer to the Technical Data Sheet!

Application - first layer

CL 51 is applied undiluted using a lambskin roll, brush or spreader. To produce a water-proof protective layer at least 2 coats with a total thickness of min. 0.5mm are required (check local regulations for minimum thickness). Expansion and edge joints must be sealed off with CL 152 or CL 82 Sealing Tape, for wall connections and floor drains use Ceresit Wall and Floor Sealing Collars. The sealing tape or collar is placed into the first coat and embedded with the second sealing coat

Application - second layer

After approx.2 hours, the second layer of CL 51 can be applied. About 4 hours after application of the second coat the surface is ready for covering with a certified adhesive mortar, e.g CM 29 or CM 17.