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Norcros Tile to Gypsum Adhesive 22Kg – Pallet Deals and Buk Buy

Norcros Adhesives

Norcros Tile to Gypsum Adhesive

With Reinforced Polymer Technology

It’s a fibre reinforced anhydrite based thin bed adhesive designed for the internal fixing of fully vitrified porcelain, ceramic and natural stone tiles directly to gyvlon / gypsum / anhydrite / calcium sulphate based screeds and gypsum plaster walls with a Relative Humidity (RH) of up to 85%.

  • Gypsum Based
  • Fixes tiles direct to anhydrite / gypsum based screed
  • Fibre reinforced
  • No sealing required
  • Fast setting and flexible
  • Floors and walls

Norcros are officialy closed from Friday 17th March 2023. Please contact us for an alternative 0333 344 2655 or info@buythepallet.co.uk

Norcros Tile to Gypsum Adhesive extended information

Coverage: 0.9kg/m2/mm bed thickness i.e. 3mm adhesive bed (walls) = 0.9 x 3 = 2.7kg/m2 or a 22kg bag will cover approximately 8m2. 4mm adhesive bed (floors) = 0.9 x 4 = 3.6kg/m2 or a 22kg will cover approximately 6m2.

When using Norcros Tile to Gypsum adhesive, unlike cement-based adhesives, surfaces do not require sealing. However, highly absorbent surfaces should be primed using Norcros Prime Bond diluted 1: 4 with water and allowed to dry before fixing commences. The adhesive has a setting time of 2 hours at 20°C permitting early trafficking of the tiled installation. When cured, the adhesive achieves comparative strengths to a conventional C2 cement-based adhesive. Norcros Tile to Gypsum Adhesive has a significantly lower carbon footprint than traditional cement-based adhesives, due to the use of recycled content from waste plasterboard, this helps to lower the amount of leftover plasterboard sent to landfill.

Anhydrite & Hemihydrite (Gypsum) Screeds

These must be cured to their respective manufacturers directions before tiling can begin. Remove all traces of dust and sand the screed to remove all loose /weak/ friable laitance. Prime with Norcros Bond diluted 1:4 with water to reduce porosity and suppress dust. Allow to dry.

Heated Floors (Dense Construction)

Norcros Tile to Gypsum Adhesive is suitable for use with underfloor and undertile heating systems. After tiling the floors should not be switched on for at least 14 days and then brought up to operating temperature gradually during the initial heating of the floor (Refer to Norcros How to Sheet ‘Commissioning of Underfloor / Undertile Heating Systems’).

Gypsum Plasterboard**

Maximum weight limit is 32kg/m2.

Gypsum Plaster**

Plaster skim and backing coat must be a minimum of 4 weeks old. Plaster skim only, at least 7 days old. Prime with Norcros Prime Bond diluted 1:4 with water. Allow to dry.

**In wet areas or those of intermittent wetting such as shower areas, moisture sensitive backgrounds such as plaster should be waterproofed using Norcros Wet Seal.

Norcros Tile to Gypsum Adhesive MIXING

Into a clean pail add 1 part of cold water and gradually introduce approximately 4 parts of adhesive powder stirring to blend the mixed mortar to a smooth lump free consistency. The properly mixed mortar will be thick enough to hold the adhesive ribs without slumping. Mix only enough material that can be used within the pot life of the product which will be around 30 minutes – this will be extended in cold conditions and reduced in hot weather/ warm temperatures.


Using a suitably notched trowel spread the adhesive onto the fixing surface to form parallel ribs into which the tiles should be applied with a firm twistng acton. Spread only enough material that remains workable and as such fully wets out on the tile backing. Solid-bed void-free fixing is essential. Tiles with deeply keyed back profiles may need to be back buttered. The adhesive is designed for thin bed fixing up to 6mm although in isolated areas it can be bedded out up to 12mm in thickness. Tiles may be grouted as soon as the adhesive bed is set. Under normal conditions this will be around 2 hours after fixing although this will be extended in cold conditions and reduced in hot weather/ warm temperatures. Do not use below 5°C.


Norcros Tile to Gypsum product has a coverage rate of 0.9kg/m2/mm bed thickness i.e. 3mm adhesive bed (walls) = 0.9 x 3 = 2.7kg/m2 or a 22kg bag will cover approximately 8m2. 4mm adhesive bed (floors) = 0.9 x 4 = 3.6kg/m2 or a 22kg will cover approximately 6m2.

Norcros Tile to Gypsum Adhesive STORAGE

Store in dry internal conditions away from direct sunlight between 5°C to 25°C. The product has a 12 month shelf life from date of manufacture.


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