Description
CMI MULTIFIX 188 is a high quality polymer modified water-resistant cement-based adhesive for use as a key coat (spatter dash) for plastering on smooth concrete surfaces and for use in laying ALC blocks and fixing of ceramic floor & wall tiles. It is suitable for interior and exterior use in thin or medium bed applications ( 3 mm to 6 mm).
Advantages
Technical Data
| Colour/ Binder | Grey/ Portland Cement |
| Filler | Graded silica sand / Limestone |
| Additives | Water soluble polymeric additives for improved open time Workability and bonding strength |
| Tensile Adhesion | > 1 N/mm2 |
| Aggregate Size | 1 mm max |
| Coverage | Approximately 3 kg/ m2 depending on substrate and backface of tile applied |
| Pot Life | 2 hours |
| Open Time | 20 minutes |
| Mixing Ratio | 26% water on dry material |
| Packing | 25 kg |
Application Procedure
The substrate should be sound and free from grease, paint and other contaminants. Mix CMI MULTIFIX 188 into approximately 6.5 liters of clean water until a slump free consistency is attained. Allow mixture to stand for 10 minutes before mixing again.
(i ) Ceramic Tiles
Spread mixture with a notched — trowel onto substrates or by buttering backface of tile. For heavier tiles or tiles with high grooves or ridges, combination of both is recommended. Do not spread adhesive more than 1 m.sq. at a time and ensure that tiles should be fixed immediately or within 10 minutes. The tiles should be firmly pressed onto sub-base and immediately knocked into position. In case of long delay, remove the existing adhesive and comb out a fresh layer. Ensure that backface of the tile is in good contact with the adhesive for best results.
(ii ) Keycoat
Spread mixture with a notched — tooth trowel onto substrate. Ensure that the whole wall substrate is covered and coarse as this is required to act as a mechanical grip for plastering work.
(iii ) ALC Block walls
Apply mixture onto blockjoints with a notched ladle to a thickness of between 3 — 5 mm. Work the adhesive to ensure contact with the block surface (vertical and horizontal ) is achieved. Use a rubber hammer to tap and adjust the blocks firmly on the adhesive bed to ensure proper bond and alignment is achieved. For better results, the blocks should be laid immediately when the adhesive is applied onto the existing block. Allow adhesive bed to set for 24 hours.
*Important : Tiles must not be soaked in water.
Storage
Storage life is approximately 6 months if stored in a cool and dry place
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