Mapei Latex Plus Admixture – Bulk Buy

Mapei Latex Plus Admixture further information

Consumption:

	Latex Plus	Keraquick S1 or Keraquick Maxi S1
Mosaics and small-sized tiles:	0.7-1 kg/m2	2-3 kg/m2
Medium-sized tiles:	1.3-1.7 kg/m2	4-5 kg/m2
Large-sized tiles:	> 2 kg/m2	> 6 kg/m2

WHERE TO USE

• As an admixture for Keraquick S1 and Keraquick Maxi S1 to obtain a high performance, fast setting, highly deformable (class C2F S2 according to EN 12004) adhesive for ceramic tiles and stone material.
• As an admixture for Nivorapid and Planipatch to obtain an ultra-fast cementitious levelling compound with improved deformability and bonding strength.

TECHNICAL CHARACTERISTICS

Mapei Latex Plus is a water dispersion of an extremely flexible polymer with low viscosity to be mixed with Mapei Keraquick S1 and Keraquick Maxi S1, Nivorapid and Planipatch in order to improve their deformability without otherwise changing their application and performance characteristics.

RECOMMENDATIONS

• Mapei Keraquick S1 and Keraquick Maxi S1, Nivorapid and Planipatch mixed with Latex Plus should never be applied at temperatures below +5°C or above +30°C.
• Do not use more than the recommended amount of Latex Plus.
• Do not add Mapei Latex Plus or water to a mix that has already begun to set.
• Do not leave Latex Plus, Nivorapid, Planipatch and Keraquick S1 and Keraquick Maxi S1 exposed to direct sunlight for long periods of time before using.

APPLICATIONS

A) Latex Plus + Keraquick Maxi S1 or Latex Plus + Keraquick S1

Fast setting adhesive with high deformability for interior and exterior installations of ceramic tiles and stone material.

B) Latex Plus + Nivorapid or Planipatch

Fast setting skimming compound with high deformability for interior surfaces.

A) LATEX PLUS + KERAQUICK S1 OR LATEX PLUS + KERAQUICK MAXI S1

WHERE TO USE
Interior and exterior installations of all types of ceramic tiles (double-fired, single-fired, gres, clinker, terracotta, vitreous mosaic, porcelain, etc.), including large format and high thickness stone materials. Particularly recommended for installing all types of thin porcelain tile (both with or without glass fibre reinforcement mesh).

Some application examples

Installation of ceramic and stone material on:

• underfloor heated installations;
• façades, balconies, terraces;
• precast concrete walls;
• existing floors (ceramic tiles, marble, PVC rubber, etc.);
• cement screeds or hot-poured asphalt substrates (provided they are stable and well oxidized);
• deformable surfaces (wood, metal, etc.).

APPLICATION PROCEDURE

Preparing the substrates
Substrates must be flat, mechanically strong, free of loose parts, grease, oil, paint, wax, etc. and sufficiently dry. Damp substrates could slow the setting of Mapei Keraquick S1 + Latex Plus or Keraquick Maxi S1 + Latex Plus. Cementitious substrates must not be subject to shrinkage once the tiles have been installed, therefore in warm weather renders should be cured at least 1 week per centimetre of thickness. Cementitious screeds must have an overall cure of at least 28 days unless they have been made with the special MAPEI binders for screeds such as Mapecem, Mapecem Pronto, Mapei Topcem or Topcem Pronto.

Cool surfaces that are too hot due to exposure to direct sunlight by dampening them with water.
Gypsum substrates and anhydrite screeds must be perfectly dry (maximum residual moisture 0.5% or 0.3% if heated), sufficiently hard and free from dust.

They must be treated with Mapei Primer G or Mapei Eco Prim T. Areas subject to high humidity must be primed with Primer S. In general, refer to the relevant MAPEI technical documentation regarding substrate preparation before repairing cracks in substrates, consolidating rapid- drying screeds and levelling installation surfaces.

Mixing ratios

Mix Mapei Keraquick S1 or Keraquick Maxi S1 with Latex Plus only, without adding water, when maximum deformability is required.

The mixing ratios are as follows:
– 8 to 8.5 kg of Latex Plus for each 25 kg bag of Keraquick S1 or Keraquick Maxi S1 grey;

– 7.5 to 8 kg of Latex Plus for each 23 kg bag of Keraquick S1 or Keraquick Maxi S1 white.

Preparing the mix

Pour the powder into the liquid, mixing with an agitator at low speed until a homogenous, lump-free paste is obtained. Let the mix sit for a few minutes, then mix again briefly, and apply.

Applying the mix

Spread a thin layer of the mix down to a feather edge using the flat face of the trowel, then use a notched trowel to apply enough adhesive to guarantee sufficient wetting of the back of the tiles. Always be careful to stay within the open time of the adhesive. In certain ambient conditions (high temperatures, dry, windy weather) the open time may be shorter than usual.

N.B. For exterior installations of large size tiles, floors to be polished in situ, or those subject to heavy traffic, back-buttering is recommended to ensure total transfer of the adhesive without voids.

GROUTING AND SEALING

Joints can be grouted after 2-3 hours with the special MAPEI cementitious or epoxy grouts, available in different colours.

SET TO LIGHT FOOT TRAFFIC

Floors are set to light foot traffic after 2-3 hours.

READY FOR USE

Surfaces are ready for use after 24 hours. Basins and swimming pools can be filled after 3 days.

RECOMMENDATIONS

• Do not use externally.
• Do not use on substrates subject to rising damp.
• Do not use directly on anhydrite surfaces (treat first with a coat of Primer G or Eco Prim T).
• Do not use Nivorapid or Planipatch mixed with Latex Plus as a skimming compound underneath parquet or glued wood flooring.
• When used for resilients, watch out for imprintability. If possible, use Mapei Latex Plus diluted with water.

STORAGE

Stored normally, in original sealed packaging, Latex Plus is stable for 24 months. Protect from frost.

Cleaning

Tools can be cleaned with plenty of water before the adhesive hardens. Afterwards cleaning is very difficult. Solvents, like mineral spirits, may be helpful.

Mapei Latex Plus Technical Data

Product Identity

Consistency:	liquid
Colour:	white
Density (g/cm3):	1.04
pH:	7
Dry solids content (%):	34
Brookfield viscosity (mPa·s):	20

Application Data

Mixing ratio:	Keraquick S1 or Keraquick Maxi S1 grey 8-8.5 kg Latex Plus for each 25 kg bag	Keraquick S1 or Keraquick Maxi S1 white 7.5-8 kg Latex Plus for each 23 kg bag
Consistency of the mix:	pasty	pasty
Colour:	grey	white
Density of mix (kg/m3):	1550	1550
pH of the mix:	approx. 11
Pot life:	30 minutes (for Latex Plus + Keraquick S1); 45 minutes (for Latex Plus + Keraquick Maxi S1)
Application temperature range:	from +5°C to +30°C
Open time (according to EN 1346):	10-15 minutes
Ready for grouting:	2-3 hours
Set to light foot traffic:	2-3 hours
Ready for use:	24 hours (3 days for basins and swimming pools)

Final Performances

Tensile adhesion strength (according to EN 1348) (N/mm2) a) – initial (after 28 days at +23°C and 50% R.H.) b) – after heat ageing: c) – after immersion in water: d) – after freeze/thaw cycles:	a) 2.5 b) 2.8 c) 1.3 d) 1.4
Resistance to acids:	fair
Resistance to alkalis:	excellent
Resistance to oils:	excellent
Resistance to solvents:	excellent
Temperature when in use:	from -30°C to +90°C
Deformability according to EN 12004:	> 5 mm - S2, highly deformable

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