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01387 270252reception@kosteruk.comKoster Aquatecnic Limited
Wet Room Tanking  

Wet Room Tanking

Tanking for tiled wetroom areas, the Aquaproof under tile waterproofing system is guaranteed to be leak free, and will not become brittle with age.

When considering which product to buy to tank (waterproof) your wet room you want to be sure that the product you buy will provide a strong and guaranteed finish which will give you a trouble free showering environment for years to come.

The Aquaproof system is CE approved and has a proven track record having been used in domestic situations and large scale commercial developments. The product has a 10-year manufacturer's guarantee and has been rigorously tested by independent experts.

Aquaproof is the complete answer to under tile wet room waterproofing:

  • Fully waterproof
  • Breathable (water vapour permeable)
  • Flexible system
  • Reinforcing tape at all joints/ pipe entries
  • Simple application
  • Creates a perfect surface for tiling with standard waterproof tile adhesives
  • Compatible with under floor heating
  • User friendly (virtually odour free)

Aquaproof Waterproofing System is suitable for application onto wooden sheeting, MDF, plasterboard and most commonly used construction boards including Wedi. The product is designed to be flexible, resisting normal thermal movement in the room, and does not become brittle with age.

Aquaproof is suitable for use in a wide number of situations being frequently specified for use under traditional shower trays, in bathrooms, kitchens, and toilets, basically anywhere where there is a danger of leakage from wet areas. Many hotels and apartment blocks have used the system to protect the building from leakages onto lower floors.

Aquaproof can be purchased as kits or separate products. We have provided you with a Wetroom Wate​rproofing Material Calculations Guide to help you make sure you are purchasing the correct amount of materials for the size of wet room you are installing.

Aquaproof Wetroom Waterproofing 10 sq.m. Shower Kit

Aquaproof Wetroom Waterproofing 10 sq.m. Shower Kit

Wet Room Waterproofing / Tanking Kit for a wet room. The kit contains CE approved Aquaproof products and contains all the product you need to waterproof a 10sq.m. wet room.


£149.00inc. VAT

Aquaproof Wetroom Waterproofing 10 sq.m. Linear Shower Kit

Aquaproof Wetroom Waterproofing 10 sq.m. Linear Shower Kit

Wetroom Tanking Kit for a linear drain wet room. The kit contains CE approved Aquaproof products and contains all the product you need to waterproof a 10sq.m. wet room.


£155.00inc. VAT

Aquaproof Wetroom Waterproofing Tape

Aquaproof Wetroom Waterproofing Tape

Elastic and strong jointing tape for reinforcing all corners/joints and nail/screw heads after application of Aquaproof Primer and Compound.


from £46.00inc. VAT

Aquaproof Wetroom Waterproofing Small Pipe Sleeves

Aquaproof Wetroom Waterproofing Small Pipe Sleeves

Aquaproof wetroom waterproofing outlet sleeves are supplied pre-made with an elasticated hole to seal around water inlet pipes. 120mm x 120mm.


£4.60inc. VAT

Aquaproof Wetroom Waterproofing Large Outlet Sleeves

Aquaproof Wetroom Waterproofing Large Outlet Sleeves

Aquaproof outlet sleeves are supplied in sheets with fabric border (you cut your hole) for sealing into floor drainage outlet. 350mm x 350mm


£18.50inc. VAT

Aquaproof Wetroom Waterproofing Primer

Aquaproof Wetroom Waterproofing Primer

This special multi-surface Aquaproof Primer carries the CE mark and has been rigorously tested to guarantee its suitability for priming all absorbent substrates.


£10.00inc. VAT

Aquaproof Wetroom Waterproofing Compound

Aquaproof Wetroom Waterproofing Compound

Heavy duty liquid rubber waterproofing compound for waterproofing of wet room areas prior to the application of ceramic tiles or other coverings. 9kg tub covers 10 sq. metres.


£75.00inc. VAT

Aquaproof Wetroom Waterproofing Internal Corner

Aquaproof Wetroom Waterproofing Internal Corner

Pre-formed internal 90-degree corner without seams for use as part of the Aquaproof wet room tanking system.


£5.95inc. VAT

Aquaproof Wetroom Waterproofing External Corner

Aquaproof Wetroom Waterproofing External Corner

Pre-formed external 90-degree corner without seams for use as part of the Aquaproof wet room tanking system.


£5.95inc. VAT