SikaCeram®-255 StarFlex LD AE

• SikaCeram®-255 StarFlex LD AE is certified according "Low Emitting Materials as per Al Sa'fat - Dubai Green Building Evaluation System" by Dubai Central Laboratory (DCL), certificate No. CL17020432
• California Department of Public Health (CDPH) Method - VOC emission test: PASS

SikaCeram®-255 StarFlex LD AE follows the main requirements of EN 12004 and ISO 13007-1 for class C2 TE S1 and main requirements of ANSI 118.15, ANSI 118.4 and ANSI 118.1.

Portland cement, selected aggregates and polymers

12 months minimum from date of production

Store in undamaged, unopened, original sealed packaging in dry conditions at temperatures between 5 °C and 35 °C. Protect from direct sunlight, heat and moisture.

0.6 mm

In normal conditions no primer is required.
However for uncommon substrates please refer to Sika Technical Department.

7.0 to 7.5 L of water per 25 kg bag

~1.60 kg/l (25 °C)

Min. 2 mm
Max. 5 mm on vertical areas
Max. 10 mm (locally up to 12 mm thickness possible, for leveling purpose)

+5 °C min. / +35 °C max.

+5 °C min. / +35 °C max.

~6 h (23 °C)

~50 min. (23 °C)

Powder consumption and coverage depends on the surface profile and roughness of the substrate, size and reverse profile of the tiles and the placing technique (simple placing "floating" or back to back “buttering-floating”).
As a guide:
For 1 mm thickness over 1 m² area, approximately 1.2 kg of powder is required.
For small sized tiles (side ≤30 cm), use small squared notch size trowel (4-6 mm) and progressively increase for medium tiles (side ≤45 cm, trowel 6-8mm) or large tiles (side ≤60 cm, trowel 8-10 mm)
This figure is theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.

Select the most appropriate equipment required for the project:
Substrate preparation equipment

• Grinding equipment
• Abrading equipment
• Power washing equipment
• Sandblasting equipment

Mixing equipment

• Low speed electric single or double paddle mixer (300–400 rpm) with a spiral mixing paddle.

Application equipment

• Notched trowel

• Mix a bag with the necessary, above mentioned, amount of water, using an electric blender with a suitable mixing spiral at low speed, in a clean bucket, and up to obtain a smooth paste free of lumps.
• Use a blender at 500 rpm maximum; do not mix at faster rate because of mechanical strength decay of the cured product.
• After blending, leave the product curing for 5 minutes in the mixing container and then briefly stir the mix prior to application.
• Always start with minimum recommended quantity of water (water/powder ratio), only if required, gradually add water to desired consistency. Do not exceed maximum allowed limit of water per bag weight.
• The obtained mix results should be very creamy, easily spreadable and thixotropic.
• Do not mix more material than can be used within 60 minutes.

SikaCeram®-255 StarFlex LD AE is applied using notched trowel.
The amount of product should be enough to ensure complete wetting of the tiles rear. Tiling has to be carried out on fresh glue, exerting an adequate pressure to ensure contact with the adhesive, and thus the perfect bonding. In case a surface film is formed on the adhesive, it is necessary to wipe the trowel on the adhesive layer previously applied. Avoid wetting already applied adhesive with water, as it may negatively affect its properties.
Note: For large tiles and permanently submerged areas, the double spreading ("buttering/floating") technique is always recommended.
Adhesive application

1. Apply sufficient adhesive to the prepared fixing surfaces with the notched trowel to the required bed thickness.
2. Adjust tiles if required.
3. Clean off surplus adhesive from tile face and between tile joints before the adhesive has dried.

Clean all tools and application equipment with water immediately after use. Hardened / cured material can only be mechanically removed.