NCL Marbostik – NCL Adhesives

PRODUCT DESCRIPTION

NCL Marbostik is white cement-based polymer modified, thin bed adhesive for fixing of tiles and stones on levelled walls & floors. It is a high quality factory premixed dry powder with special chemical additives with inorganic fillers. It provides high bonding strength and full coverage to the tile surface, thereby providing full bed, sound and long lasting installation as compared which results in cavities and poor bonding with conventional mortar. Suitable for use on most masonry and concrete surfaces and swimming pools.

ADVANTAGES

Assured Factory Quality - Eliminates variations in batch mixing at site
Eliminates procurement of individual raw materials at site
Single pack system, need to add only water as per recommendation
Suitable for interior, exterior and external cladding applications
Self-curing product
Good tensile adhesion strength
Conforms to IS 15477 - Type 2
Saves considerable time & labour
Good open time
Cost-effective
No VOC (No toxic fumes)

SUITABLE SURFACES

Cementitious screeds
Cement mortar beds
Cement plasters
Concrete substrate

APPLICATION AREAS

The product is suitable to fix ceramic, vitrified tiles, marble, glass mosaic, granite, light coloured stone both in interior, exterior substrates, swimming pools, external cladding and tile on tiles.

TECHNICAL DATA

Sl. No.	Attributes	Standard	NCL Block Conforms
1	Appearance	Mfg. Spec	Dry Powder
2	Color	Mfg. Spec	White
3	Packing	Mfg. Spec	20 kg.
4	Shelf life	Mfg. Spec	12 months
5	Mixing proportion with water	Mfg. Spec	25 to 30%
5	Mixing proportion with water	Mfg. Spec	25 to 30%
6	Pot life	Mfg. Spec	180 Minutes
7	Tools	Mfg. Spec	Notched Trowel& Rubber Trowel
8	Bed thickness	Mfg. Spec	min 3mm (Depends on tile size)
9	Open time at 25°c	Mfg. Spec	> 20 Minutes
10	Coverage	Mfg. Spec	> 3 sft. / kg. for 3mm
11	Time to traffic	Mfg. Spec	24 hours
12	Shear adhesion - 14 dry condition	> 8 KN / 10 KN	> 22 KN
13	Tensile strength -- 14 dry condition	750 N / NA	> 1200 N

SURFACE PREPARATION

The surface should be dry, clean and free from dust, grease, oil and other contaminates. Keep the following tools ready - mixing tools, trowel, hammer, notched trowel, joint spacers, sponge etc.

Cement-based Surfaces: Screeds must be properly cured for 7 days. Cure the concrete for 3 weeks prior to tiling. The surface should be properly levelled for best outcome. Remove curing compounds and any other foreign matter before application which leads to de-bound the tile adhesive.

Painted Surfaces: Already paint / lime etc. coated surface should be removed by wire brush or mechanically and loose peeling paint should be removed completely. Allow the surface to dry after cleaning.

MIXING

Mix the product with water in the ratio of approximately 1:4 in a clean tub. Take 75% of recommended water and gradually add Marbostik tile adhesive to it. Mixing can be done manually or by mechanical slow speed stirrer. Based on the material consistency, adjust the water and mixing to be done, till homogenous lump-free mix is obtained. After proper mixing, leave the paste for 5 minutes for polymeric dispersion before application. The paste should be kept away from direct sunlight, heat and use within 180 minutes of preparation (after mixing with water).

APPLICATION

The backside of tiles to be cleaned with wet cloth to remove all dust particles before fixing it. Apply the mixed dough of adhesive on the substrate and spread it by notch trowel. Fix the tiles /stones and press firmly. Then tap properly with rubber hammer in order to spread the adhesive equally and for a good result. Remove any surplus adhesive on the face of the tiles. The tiles adjustment should be done within 15 minutes and before adhesive starts hardening

The 3 mm spacing is recommended when fixing the tiles. After 24 hours, NCL's Cementitious Grouting can be done.

PRECAUTIONS

Keep out of reach of children
Avoid inhalation of dust
In case of contact with eyes, rinse eyes with plenty of water and consult a doctor immediately.

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