A100 Showerproof 

Bostik A100 Showerproof is a ready-mixed wall tile adhesive designed for fixing ceramic wall tiles to most internal surfaces. Ideal for a wide range of substrates in kitchens, toilets, domestic showers and bathrooms.
 

Suitable for use in kitchen and bathroom areas and for domestic shower walls, when applied by the solid bed method. It is not impervious however, and in such cases the backgrounds must also be water resistant.
 

The adhesive is suitable for most surfaces including plaster, sand and cement rendering, plasterboard, old glazed tiles, and tile backerboards.