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Image: Mosaic Tile System Specification Slice 1

Tiles used : Pre-grout method for glass mosaic and unglazed mosaic : 25x25x4mm, 18x18x4mm, 20x20x4mm, etc.

Location of application : External application / Internal application

Materials to be used :

  • Ordinary Portland Cement.
  • Sand for mortar screed.
  • Hiflex HF-1000 (abbreviated to HF-1000), an EVA synthetic high polymer emulsion for mortar or tile setting packed 18kg per tin can.
  • Meji Cement (Tile Joint Cement), packed in a 25kg paper bag.

Application Procedure

A : Cleaning of Background

Cleaning with brush and water to remove laitance and unsound surface layer and debris.

B : Treatment of Background (Primer)

Apply HF-1000 diluted 3 times (HF-1000 : Water = 1 : 2) by brush or roller or spray.

Usage : HF-1000 ......... 0.05 Kg/M2 (approximate)

C : Setting Mortar (Cement Sand Render)

C/S Render shall be applied within 3 days of applying HF-1000 primer.

Mixing Proportions

Cement
Sand
HIFLEX
1
3
1 solution diluted 10 times

Usage : HF-1000 ............ 0.504 Kg/M2 (for 15mm thick)

Note :

  • Each coat of mortar for the setting bed shall not exceed 10mm in thickness. Apply an additional coat to build up required thickness after the previous coat is sufficiently cured.
  • Cure each C/S rendering with water sprinkling.
  • Cure each layer for 4-7 days before constructing the next layer.

D : Tile Setting Mortar (2-3mm thickness)

Mix Proportion (By Volume)

MEJI Cement
HF-1000
Water
20
1
4

Usage : HF-1000 .................... 0.244 Kg/M2 (approximate)

Usage : MEJI Cement .............. 3.000 Kg/M2 (approximate)

Note :

  • Moisturize and soak the surface of the setting bed with water overnight.
  • Apply mortar on the back of tile onto well prepared wall in about 2-3mm thickness, and set the tile on the prepared wall surface at once (known as the "Buttering Method").
  • Tap and press the tile surface well after tile setting to ensure the tile joint is fully occupied with mortar.
  • Cure the surface for approximately four hours after tile setting and ensure the tiles are initially set before wiping off the excess mortar with a sponge and cleaning the surface of the tile with water.

E : Cleaning Tile Surface

Further mortar smudge should be removed with 3% solution of industrial hydrochloric acid after washing surface with water. This shall be done after the grouting has been cured for seven days.

F : Remark

Pot life of cement mortar mixed HF-1000 is within 1 hour.

Usage rate given above is for guidance only. Actual usage rates may vary upon different climatic and site conditions. Wastage of materials has not been included on the above rates.

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