Tile Adhesive R3
LAMARC R3 is a high quality polymer modified cement based water resistant mortar with high crack resistance and moisture free, as per ISO – European standards for bonding normal/large sizes of ceramic tiles, suitable for floor and wall, onto concrete/cement plaster surfaces, both internally and externally with quick setting and superior strength. It can be used on ceramic tiles (group 111- BS5385-1:2009) having water absorption (E) more than 10% (E>10%). C500 white is advised to be used on stain prominent tiles.
| Technical Data | |
|---|---|
|
Composition |
Portland cement, fine graded sand and chemical
additives, including powder polymers. |
|
Binder |
Portland cement |
|
Aggregate Size |
0-0.5 mm |
|
Appearance |
Granular powder available in grey colours |
|
Mixing Ratio |
5 Itrs of water per 20 kg bag
Water/Powder ratio = 0.25 |
|
Approx. Yield/Coverage * |
48 -60sft per 20kg bag when toweled At 3mm
Thickness |
|
Density * |
Wet: 1.8 kg/Itr Dry: 1.75 kg/Itr |
|
Compressive Strength * |
10.0 N/mm2 @ 28 days |
|
Flexural Strength * |
2.0 N/mm2 @ 28 days |
|
Bond Strength * |
0.5 N/mm2 @ 28 days |
|
Pack Size |
20 kg bags |
|
Shelf Life |
12 months from date of production when stored
under dry conditions |
|
Working Time |
Approx. 30 minutes |
|
Specification |
BSEN 12004:2007 DIN18156 & ANSIA118.1 |
|
Grade |
C2 |
* Typical results under laboratory condition.
Tools
Waterproof Tile Adhesive R3 grade is suitable for backgrounds such as Portland cement based renders, floor screeds and concrete. It should not be applied onto wood, metal sheets or painted surfaces. The background and tile must be clean, free of dust deposits, sinter skin, formwork oil and other contamination which may affect adhesion. The suction in the background should be neutralized by applying potable water
LAMARC R3 Grade supplied in 20 kg bags has to be mixed with potable water only, in a clean plastic bucket or a clean, non- corrosive uncontaminated metal tub. To ensure a homogeneous and uniform mix, an electric agitator must be used. The amount of water to be added is approximately 5 Itrs per 20 kg bag(i.e. 25% by weight). Add LAMARC R3 grey to water, turn the contents of the bag carefully and stir frequently. Once mixed, allow to stand for 5 minutes and mix again before applying. No further water should be added to the mix. The mixed mortar must be used within 30 minutes. Hard and set mortar should not be re-mixed or used.
LAMARC R3 is rendered in one coat, having a thickness of 2-5 mm. To achieve a uniform thickness, the mortar is leveled with a serrated trowel. The thickness of the adhesive will depend upon the size and type of tile. Do not spread more than 1m2 at a time. Spreading large areas may result in the mortar drying before tiles can be pressed home, causing poor adhesion. Once the mortar has been applied, the working time will vary according to the porosity of the surface and atmospheric conditions. Tiling in wet areas, i.e. shower rooms, swimming pools and in all such instances, ensure solid bedding. There must be no void or air pockets behind the tiles. Do not apply the mortar sparingly. Buttering the mortar onto the back of the tile is not recommended, but if essential it should be spread over the entire back of the tile to an even depth.
Pre-treatment, i.e. wetting of Tiles is essential. However, due to the wide variety of tiles available, it is advisable to consult the tile manufacturer for recommendations.
Ceramic Ales should not be fixed with tight joints. Leave a minimum space of 2 mm around every tile. For normal use, the joints should be filled with LAMARC cementations grout
The possibility of incorporating movement joints in any tile installation should be considered at the design stage and usually they will be located at the following areas:
- Over existing movement joints in the structure
- Where tiling other materials i.e ceiling, floors, skirting, door and window frame etc.
- In large tiled areas at internal vertical corners and at 3-4.5 m centers horizontally and vertically. Movement joints should be at least 6 mm wide and extend completely through tile and adhesive bed. An appropriate sealant, e.g. silicone rubber, should be used for filling the movement joints.
Grouting should not be carried out for at Least 48 hours after completion of the tiling.
LA MARC R3 grey must be stored in a dry place, off the ground and well covered. Hard or lumpy material must be rejected