Norcros Standard Set S1 Flexible GREY / WHITE Tile Adhesive 20Kg – Pallet Deals and Bulk Buy

Norcros Standard Set S1 Flexible Tile Adhesive extended information

COVERAGE: On true surfaces with small tiles <200 x 200mm on walls approx. 2.75kg per m2 and on floors approx. 3.3kg per m2. With larger tiles >330 x 330mm on walls approx. 3.3kg per m2 and on floors approx. 4kg per m2.

Norcros Standard Set Flexible S1 is a highly polymer fortified, fibre reinforced adhesive mortar designed with increased flexural strength for fixing all types of tiles including dark natural stone to a variety of building surfaces in internal, external and total immersion locations. The increased polymer level combined with fibres gives reinforced flexural and bond strength in addition to giving the adhesive crack bridging properties up to 3mm. It is ideal for use in heavy duty areas such as swimming pools, commercial showers and locations where thermal variation may occur such as heated floors. A further benefit of the adhesive is its anti-shrinkage properties, making it suitable for a bed thickness up to 10mm. Setting time is 16 to 24 hours at 20oC. When fixing light coloured or translucent stone a white adhesive such as Norcros Standard Set Flexible White S1 should be used to avoid staining.

Norcros Standard Set S1 Flexible Tile Adhesive product summary

Concrete/ Cement:Sand Screed

New concrete floors must be allowed to dry for a minimum of 6 weeks. Residual traces of laitance and curing agents should be mechanically removed before tiling commences. Screeds should be a minimum of 21 days old. These drying times may be reduced to 48 hours if Norcros Permalayer anti-fracture membrane is used.

Cement:Sand Render

Must be at least 14 days old. New render should not be applied to new masonry walls until 6 weeks after the brick or blockwork has been completed. This allows for drying shrinkage to have taken place.
In cold conditions these times will be extended.

Anhydrite & Hemihydrite (Gypsum) Screeds

These must be cured to their respective manufacturers directions before tiling can begin. The surface must be free from laitance and primed using progressively stronger coats of Norcros Prime Bond as follows: Diluted 1:4 parts water. Allow to dry. Diluted 1:3 parts water. Allow to dry. If the screed is still absorbent then a third priming coat diluted 1:2 parts water should be applied. Allow to dry.

Heated Floors (Dense Construction)

Norcros Standard Set Flexible Grey S1 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. Undertile heating cables and mats can be tiled directly or prior to tiling they can be bedded into a screed of either Norcros Pro 30 Fast Track Eco Levelling Compound or Norcros Pro 50 Self Levelling Compound. This method prevents damage to the heating elements during the laying process.

Thermoplastic Floor Tile/ Vinyl Sheet

If well stuck down and in good condition these should be degreased and sealed with neat Norcros Prime Bond.

Asphalt (Internal Only)

Flooring grade asphalt can be tiled directly with Norcros Standard Set Flexible Grey S1 Adhesive providing it is in good condition, clean and able to support the tiling.

Gypsum Plasterboard**

Seal with Norcros Prime Bond prior to tiling.

Gypsum Plaster**

Must be sealed with Norcros Prime Bond before tiling. If finishing plaster is polished, rub down to form a key before priming.

Glazed Surfaces

These must be well fixed and able to support the additional weight of tiling, clean, dry and free from grease. The old glazed surface must be thoroughly degreased and a slurry bonding coat made of 1 part Norcros Prime Bond: 2 parts Norcros Standard Set Flexible Grey S1 Adhesive should be brushed onto the surface and allowed to dry. This will provide a key onto which the adhesive layer can bond.

Plywood Overlay onto Existing Timber Floors**
(BS EN 636-3 WBP/Marine Grade Plywood) Internal Tiling Only
All sheets should be a minimum of 15mm to 18mm thick and be screwed down to existing boards and joists with staggered joints at 300mm centres and 150mm centres along board edges. The sheets must be sealed on the back, face and edges with undiluted Norcros Prime Bond. All timber constructions must be adequately ventilated behind to prevent atmospheric moisture distortion and warpage of the boards themselves.

Beware of some grades of Eastern European and Far Eastern Plywood which may be susceptible to disintegration when wet. Plywood which has been treated/coated may not be suitable to receive a tiled finish as the coating may inhibit adhesion to the board.

** 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.

MIXING

Into a clean pail add 1 part of cold water and gradually introduce approximately 3.5 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. The product has an ease of use pot life of up to 4 hours, however this will be extended in cold conditions and reduced in hot weather/ warm temperatures.

APPLICATION

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 twisting action. Spread only enough material that remains workable and as such fully wets out on the tile backing. Solid bed void free fixing will be necessary on floors and in wet areas. Tiles with deeply keyed back profiles may need to be back buttered. The adhesive is designed for thin bed fixing up to 10mm 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. Do not use below 5oC.

Norcros Standard Set 1 Flexible 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.