Mapei Waterproof Fix & Grout – Various Sizes

Suitable for fixing and grouting ceramic tiles in kitchens, bathrooms, utility rooms and shower areas. 

• For fixing tiles to walls onto substrates including plaster, plasterboard, existing tiled finishes, tilebacker boards, sand:cement render, concrete, WBP or marine grade plywood.

APPLICATION

Ensure the substrate is flush, plumb, firm, dry and free from contamination, eg. paint, polishes, old adhesive residues, grease, laitance and dust. Prime dusty or extremely porous surfaces with Primer G diluted 1:1 with water. New plaster should be left to fully cure for a minimum of 28 days and render for a minimum of 14 days. If the plastered walls have been finished to a shiny glass like finish it is essential to roughen the surface using e.g. a wire brush. Remove all dust created and prime with Primer G diluted 1:1 water. Ensure all substrates are fully dry before commencing tiling or priming. Once priming has taken place tiling can usually commence after 1-2 hours, however wait until the primer has dried. Spread the adhesive over no more than 1 m² before applying. Apply the adhesive with a suitable trowel to ensure at least 65% contact in dry areas, and a more solid layer of adhesive in wetter areas. Generally a larger size notch will be required for larger format tiles. Do not exceed tile size of 300×300 mm. Check the coverage by lifting a tile occasionally and inspecting. Apply an additional layer of adhesive to the rear of larger tiles. Clean any residues from the tile face immediately. If a matt finish or rough textured tile is used please be aware that the Waterproof Fix & Grout will dry in the pores of the tile. It is therefore essential to work carefully and to clean the grout off immediately. It is recommended that a trial.

RECOMMENDATIONS

• Waterproof Fix & Grout is not suitable for use externally, in heavy duty wet areas or in areas of constant water immersion, e.g. communal showers or swimming pools.
• Waterproof Fix & Grout can be used in power showers provided the MAPEI Showers Waterproofing Kit has been installed.
• Waterproof Fix & Grout is for use on interior walls only.
• Do not grout until the adhesive has completely dried, usually within 24-48 hrs depending on the tile size, substrate type and ambient temperature. Low temperatures can lengthen this time period.
• Do not use on metallic surfaces.
• Do not use with natural or agglomerate stone tiles or tiles that exceed 300×300 mm (200×200 mm when porcelain).
• Do not use for bonding non-absorbent materials to non-absorbent surfaces i.e. porcelain tiles must be fixed to an absorbent substrate. At least one of the surfaces must be absorbent.