Product Data Sheet Show all documents

SikaCeram®-268 SAC 28

(former Davco® SAC 28 ECO)

PREMIUM GRADE CEMENT-BASED TILE ADHESIVE

SikaCeram®-268 SAC 28 is a premium grade cementitious tile adhesive that has been specially formulated with approved recycled materials and is approved by the Eco-labelling authority in Singapore as a sustainable building material. Classified as C2S1E when tested to BS EN 12004:2007.

  • Its high bonding performance and deformability make it an extremely versatile product, enabling the bonding of reduced porosity natural stone or tiles to new or old substrates.
  • It is suitable for very large format tiles.
  • High flexibility makes it resistant to thermal shock. 
  • Formulated with recycled material to reduce carbon emission.
Product Data Sheet Show all documents

Usage

It is suitable for the application of most tiles, including natural stones and tiles on concrete, rendered and screeded substrates. Installation can be done on walls and floors, and in interior and exterior areas.   

Advantages

  • Its high bonding performance and deformability make it an extremely versatile product, enabling the bonding of reduced porosity natural stone or tiles to new or old substrates.
  • It is suitable for very large format tiles.
  • High flexibility makes it resistant to thermal shock. 
  • Formulated with recycled material to reduce carbon emission.

Packaging

25 kg/bag

Colour

Grey or White Powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Singapore Green Building Product (Leader) Cert. No. SGBP 4096
Product Information

Shelf Life

12 months from the date of production

Storage Conditions

Store properly in original, unopened and undamaged sealed packaging in dry conditions. Keep away from direct sunlight and frost.
Technical Information

Tensile Adhesion Strength

28 days≥ 1.0 N/mm²
After water immersion≥ 1.0 N/mm²
After heat aging≥ 1.0 N/mm²

Thermal Resistance

-20 °C / + 80 °C

Transverse deformation

2.5 mm (minimum)

(BS EN 12004 -2 : 2007)

 

Application

Application Information

Mixing Ratio

6 - 7 ltr of water

Pot Life

~ 1 hrs

Open Time

30 minutes at 25 °C

Drying Time

24 hrs
Consumption

Consumption

6 mm x 6 mm notched trowel~ 3.5 kg/m²
12 mm x 12 mm notched trowel~ 7.0 kg/m²
20 mm x 20 mm notched trowel~ 11.9 kg/m²
Application steps

SUBSTRATE PREPARATION

Substrate must be clean, sound, dust-free and free of all traces of oil, grease, wax and other contaminants.
Substrate must not be running with water, or frozen.
Newly rendered surfaces must be allowed to sufficiently cure before commencement of tiling. Very porous surfaces should be primed with Sikalastic®-500 Acrylic Primer AP.

MIXING

Mix SikaCeram®-268 SAC 28 to liquid component, mixing continuously until a lump-free, creamy consistency is achieved.

Allow the mix to stand for 5 - 10 minutes and remix prior to use. Mix lasts approximately 1 hour, depend on the temperature.

APPLICATION

  • Spread the adhesive onto the substrate using either a 6 mm x 6 mm to 12 mm x 12 mm notched trowel for wall tiling
  • A 12 mm x 12 mm to 20 mm x 20 mm notched trowel for floor tiling. The choice of the trowel should be governed by the size of the tiles, depth of knobs, grooves or ridges on the back of the tiles and the evenness of the substrate.
  • Spread approximately 1.2 - 1.5 m² at one time. Ensure that the adhesive is wet when the tiles are laid with a twisting action and tapped into position to ensure positive contact with the adhesive.
  • For dual bonding, follow the above-mentioned instructions, after buttering the underside of the tile.
 
  • Ensure there are no voids under the tiles.
  • Do not allow the adhesive to skin over prior to tiling.


Grouting after tile installation
 

  • Grouting should preferably be carried out at least 24 hours after the completion of tiling.
  • Pour clean water, or if any movement is anticipated, SikaLatex®-751 in a clean mixing bucket.
  • Slowly add the grout powder, stirring continuously until a lump-free, toothpaste consistency is achieved.
  • It is important and necessary to butter coat the back of the tiles to improve adhesion and avoid hollowness especially for large format tiles and tiles with grooves and ridges.
  • Using a rubber float or squeegee, work the grout paste deep into the joints, making sure the grout is not just sitting on top.
  • Remove excess grout from the surface of the tiles with the float or squeegee using a diagonal motion to avoid dislodging the embedded grout.
  • A primary clean up should be done by wiping with a damp cloth or sponge.
 

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