UniStone tile adhesives are manufactured under technical collaboration with WACKER POLYMERS Germany. WACKER is one of the world’s largest and pioneer companies in the field of polymers. WACKER POLYMERS provides full technical support and product testing facilities in their state of the art laboratory in Mumbai to our company, ensuring our products meet the highest International Standards.
Tile adhesives consist of a cement-sand mixture to which special polymers & additives are added to impart the desired properties of high bond strength, flexibility & water retention to ensure permanent tile fixing in difficult situations.
Ordinary tile adhesives without polymer binders: These do not comply with EN 12004 standards, and have low bond strength & poor durability. they can only be used for small, porous clay tiles on porous mineral substrates.
Simple tile adhesives containing a low quantity of polymer binders: These show improved adhesion & correspond generally to class C1 adhesives defined in EN 12004, having tensile adhesion strength >0.5N/mm². They are used for small to medium, porous clay tiles on porous substrates.
Flexible high-quality tile adhesives containing a medium quantity of polymer binders: They correspond to the standards of class C2 adhesives defined in EN 12004, having tensile adhesion strength > 1.0N/mm². They are used for large, non-porous vitrified tiles on nonporous substrates in interior applications. Unistone Vitro corresponds to the technical standards of class C2 tile adhesives.
Highly flexible tile adhesives containing a high quantity of polymer binders: They have very good adhesion to all kinds of substrates, higher flexibility and long-term durability. They exceed the standard of class C2 adhesives defined in EN 12004, having tensile adhesion strength of approximately 3.0N/mm². Unistone Ultimate/Polyfix fall in this category of tile adhesives. They are specially designed to fix all kinds of tiles on exterior facades, tiles in swimming pools, and tiles on difficult substrates.
In certain demanding situations, cement-sand mortar does not provide adequate bonding. Examples are external cladding, swimming pools, tiles on wood or other less porous substrates, vitrified tiles, and and glass mosaics. To meet the demands posed by this combination of background and materials, Unistone adhesives can be used to ensure total success in terms of technical performance.
BONDING
Unistone adhesives have a bond strength of 3-4 times of cement-sand mortar. For tiles with low porosity like vitrified tiles and glass mosaics, cement mortar achieves minimal bonding. For surfaces like wood & board, again cement mortar is not suitable. The bond obtained with unistone adhesives is durable over time, unlike cement-mortar.
FLEXIBILITY
Cement-sand mortar is not flexible. Any movement of the tile surface/substrate caused physically, thermally or through moisture will not be accommodated by cement mortar. Unistone Tile Adhesives are formulated to allow for movement.
BETTER FIXING
Using Unistone Tile Adhesives, tiles can be fixed from top to bottom, tile position can be adjusted, curing is not required, tiles are fixed dry, soaking is not required and the adhesive has good ‘grab’ and non-slip properties. All these properties make them easy to use and achieve better aesthetics in tiles.
How can one ensure permanent fixing in exterior cladding?
Exteriors are subject to thermal expansion & contraction, strong sunlight & rain. Unistone Ultimate tile adhesive/ Unistone Polyfix liquid polymer tile adhesive provides high flexibility with superior bond strength for fixing tiles in exteriors. However, the base plaster should be perfect to ensure that it does not give way. The adhesive ensures that tiles will not separate from the base plaster, but if the base plaster is itself weak, the purpose is defeated. Unistone Ultimate/Polyfix tile adhesive with sound base plaster can ensure perfect bonding in external tile facades.
How to prepare a sound base plaster?
It is recommended to use cement, and coarse sand mixed in the ratio of 1:3. The plaster should be cured properly. It takes 3 weeks for the plaster to mature & gain optimum strength. Therefore tile fixing should start only after three weeks. The practice of using a weak cement-sand mix and application of tiles soon after to save scaffolding costs is bound to meet failure.
What about swimming pools?
This again being a more demanding situation, it is advisable to use Unistone Ultimate / Polyfix tile adhesive.
And vitrified floor tiles in Interiors?
Vitrified tiles have very low porosity (water absorption<0.1%). Thus they do not bond well with cement-sand mortar. For this application, we have Unistone Vitro tile adhesive which is more economical than Unistone Ultimate/Polyfix. Unistone
THE PRODUCT
Unistone Ultimate tile adhesive is a high-performance single-component adhesive specially formulated for exterior tiling applications, where high-strength bonding is required, due to adverse & extreme climate conditions. It is dry-mix-ready for use with the addition of water at the site.
USES
Unistone Ultimate tile adhesive is used to fix ceramic, marble & natural stone on concrete & cement plaster surfaces in exteriors, facades & swimming pools.
ADVANTAGES
PRECAUTIONS
Ensure that the surface is structurally sound, stable & rigid enough to support the ceramic tiles to be fixed on it.
Use conventional mechanical clamping arrangements for external wall cladding applications.
In the case of swimming pools, wait for 2 weeks after fixing the tiles, before filling them with water.
COVERAGE
Depends upon the nature of the surface & thickness of the adhesive-mortar bed. Coverage is 2.8-3.0 sq. ft./kg when applied with a notched trowel in thickness of 3mm.
PACKING
In 5 kg & 20 kg bags.
STORAGE
Store in a cool, dry place.
THE PRODUCT
Unistone Vitro tile adhesive is a superior quality single-component adhesive used in interior tiling applications. It is dry-mix-ready for use with the addition of water at the site.
USES
Unistone Vitro tile adhesive is used to fix non-porous vitrified tiles in interiors, on both walls & floors.
ADVANTAGES
High bond strength plus flexibility.
Has non-slip properties.
No curing is required.
Easy, fast & economical to use.
COVERAGE
Depends upon the nature of the surface & thickness of the adhesive-mortar bed. When applied with a notched trowel in thickness of 3 mm, coverage is 2.5-3.0 sq. ft./kg.
PS.: for tiles of size 1′ X1′ and above, the coverage is 0.5-1.0 sq. ft./kg. due to the higher density & greater thickness of the adhesive-mortar bed.
PACKING
In 5 kg & 20 kg bags.
STORAGE
Store in a cold, dry place.
THE PRODUCT
Unistone Polyfix liquid polymer tile adhesive is added to cement-sand mortar to prepare tile adhesive at the site itself. It imparts the desirable & necessary properties of high bond strength, flexibility non-slip, long open time & ease of use to the cement-sand mortar. Unistone Polyfix is the liquid tile adhesive equivalent of Unistone Ultimate powder adhesive.
USES
The tile adhesive prepared at the site is used for fixing porous clay tiles, non-porous vitrified tiles, marble and stone in both interiors & exteriors. It is more economical than Unistone Ultimate tile adhesive and it uses readily available materials, cement and silica sand at the site.
ADVANTAGES
Tile adhesive prepared has high-performance characteristics.
Uses readily available materials at the site to prepare the tile adhesive.
Economical in cost.
DOSAGE/COVERAGE
FOR EXTERIOR APPLICATION:
1 part of Unistone polyfix liquid polymer adhesive is added to 3 parts of neat cement or it is added to 3 parts of 1:1 mixture of cement & sand mortar. Coverage of Unistone Polyfix tile adhesive is 10-12 sq. ft./kg when applied with a notched trowel in thickness of 3 mm.
FOR INTERIOR APPLICATION:
Unistone Polyfix is first diluted with water in the ratio of 1:1. Use 1 part diluted Polyfix with 3 parts of 1:1 cement : sand mortar. Coverage is 20-25 sq. ft./kg in this case.
PACKING
In 5 kg & 20 kg HDPE cans.
STORAGE
Store in a cool, dry place.
PS: For Interior Application: First dilute Unistone Polyfix with water in a ratio of 1:1. Rest of the procedure is the same as in exterior application.
PROPERTIES | TILE ADHESIVE | REQUIREMENT AS PER EN/ANSI | ||
UNISTONE | UNISTONE | UNISTONE | ||
Tensile adhesion strength | > 2.5 | > 0.5 | > 2.0 | Minimum requirement: |
Water immersion: 7 days s.c. + | > 2.5 | > 0.5 | > 2.0 | |
Open time | > 20 min | > 20 min | > 20 min | >20 minutes as per EN 1346 |
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