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Wet Areas Systems

Watertite WA 11

Our waterproofing and tiling system, for indoor rigid concrete substrate protection. 

Concrete floors and walls in residential bathrooms, kitchens and showers, classified as rigid surfaces, are subjected to occasional exposure to water splashes. Watertite WA11 is a composite waterproofing membrane and tile finish system, which is designed for the protection of indoor rigid concrete surfaces, exposed to moderate water splashes.

Watertite WA 11,  kitchens, Bathrooms, Showers, antifungal, antibacterial, 20 years warranty, rigid surface


What you will need

Polyflex, Polybit CL 252, Polybit CM 11, Polybit CE 33


The surface must be structurally sound and free of oil, grease, dust and other contaminants which will affect the bonding. Any structural cracks and potholes shall be repaired with a suitable repair mortar from the Polycrete* range of repair mortars. The surface to be treated should be presaturated with water prior to application. However, any standing water shall be removed prior to application.


  1. Mix the powder component to the liquid component slowly and mix continuously with a paddle mixer fitted to a slow speed drill, till a uniform consistency is achieved. Care to be taken to avoid the formation of lumps.
  2. The coating is normally applied in two or more coats. Apply the first coat of Polyflex by a stiff brush on the prepared damp surface. In case the area becomes dry, wet the surface again with water before applying the second coating. The coating is to be applied @ 1.8 kg/m² to achieve a dry film thickness of 1mm.
  3. Recommended to apply in three coats to provide a minimum thickness of 1.5mm. Each coat shall be applied @0.9Kg/m2.
  4. Similarly apply one coat on all the fillets and edges, extending up to 50mm on either side.
  5. After the application of the first coat and whilst the coating is still wet, embed Polybit CL252 fibre mesh at all corners and joints.
  6. After the application of the first coat, apply the second coat at right angles to the first coat and only after the first coat has dried completely.
  7. Curing can be done by wet Hessian cloth or spraying water.
  8. Clean all tools immediately with water after use. Hardened materials can be removed mechanically only.


After the application of the first coat and whilst the coating is still wet, embed Polybit CL252 fibre mesh at all corners and joints.


The surface should be dry, free of any cement laitance, oil, grease, curing compound and any other deleterious materials. New concrete moisture content on the surface should be less than 5%.


  1. Pour Polybit CM 11 into the precisely measured amount of clean water (6L to 6.5L for 25kg bag) and mix with a drill and mixer until a homogenous mass without lumps is reached.
  2. Leave the material for 2 minutes and then mix it again.
  3. Apply the mortar with a suitable notched trowel.
  4. For indoor use, the mortar coverage (wetting) on the tile backside must be at least 65%.
  5. The floating-buttering method shall be used for larger tiles. (i.e. additionally, a thin layer of the mortar should be spread on the tile’s backside, wetting equal or more than 90%).
  6. Place the tiles only during the open time of the adhesive.
  7. Do not lay tiles butt jointed. Fresh excess mortar can be removed with water, hardened material can only be removed.
  8. Grouting on the wall can be done after 8 hours and after 24 hours in floor using Polybit grouts.
  9. Walkability is reached after 24 hours.
  10. Expansion joints, joints at the corners of walls and floor and around sanitary equipment shall be filled with silicone sealant.


The surface and thin-bed mortar, dispersion adhesive or thick-bed mortar must have set sufficiently hard and dry.

Scraped joints must first be wetted. In case of tile coverings with a porous or non-scratchproof surface test suitability of CE 33 for grouting.


  1. Measured quantity of Polybit CE 33 pour into the cold and clean water and mix with an electric mixer until you obtain a homogenous mixture, free of lumps.
  2. L of water are required for 5 kg of Polybit CE 33.Mix again after 3 minutes.
  3. Apply the joint mortars using the slurry technique. Wipe over and clean freshly grouted tiles with a damp sponge.
  4. Remove the dry film later with a soft cloth.
  5. Dampen the freshly grouted joints after 24 hours to prevent surface moisture deficiency.
  6. Floor tiles can be walked on after only 24 hours


Have a question?

We are happy to support you with any questions regarding our products, where to buy, or what is the right solution for your project.