SikaCeram-188 KH

SikaCeram-188 KH is classified as C2TE in compliance with EN 12004. SikaCeram-188 KH is a cementitious adhesive (C) with improved adhesion (2), slip resistance (T), and extended open time (E)

Cementitious mortar

6 months from date of production

Store properly in dry conditions, in undamaged and unopened, original sealed packaging. Not sensitive to frost.

Fresh mortar density: ~1.70 kg/l (at +25 °C)

Dmax: 0.4 mm

(BS EN 1348:2007)

≤ 0.5 mm  (EN 1308:1999)

4.8 of water per 20 kg bag

3 mm min. / 10 mm max.

+5 °C min. / +40 °C max.

+5 °C min. / +40 °C max.

≥ 0.5 N/mm² at 30 minutes (at 23° C)  (BS EN 1346:1997)
Under unfavourable conditions (direct sun, high ambient temperature and strong wind), the open time may be shorter.

Once the tiles are placed into the mortar, they can be adjusted for ~30 minutes (at +20 °C).

 At +25 °C

 This depends on the level, profile and surface roughness of the substrate, the size of the tiles and the technique of placing (simple placing or "back"buttering). As a guide, in kilogram of powder per m²on flat surfaces:

The consumption above may only serve as a guide. It is highly recommended to carry-out trials on site to determine the actual coverage.

Mix thoroughly with clean water for a minimum of 3 minutes. Leave material to stand in container (for a minimum of 5 minutes). Then, remix the material for 15 seconds - the product is now ready for use. SikaCeram-188 KH must be mechanically mixed using a forced action mixer or in a clean container using a drill and mixing paddle (< 500 rpm). A normal free fall concrete mixer is not suitable.

SikaCeram-188 KH is applied using a notched trowel onto the substrate. Choose the size of trowel that will give the right thickness on the back of the tile. Once the surfaces have been appropriately prepared, apply SikaCeram-188 KH onto the substrate using an appropriate serrated trowel. SikaCeram-188 KH should be applied onto the substrate at a rate of 1 m² at a time. Application rates greater than this can result in the adhesive skinning before the tiles are laid. Once the adhesive is applied onto the substrate, ensure thatit does not skin prior to bedding the tiles. If a surface film has developed, pass a notched trowel through the adhesive. Rework the adhesive before placing the tiles within the open time. When placing the tiles into the adhesive, press them in using the Tarver Method; press, slide perpendicular and return. Ensure full coverage of adhesive and no voids is underneath the tiles. For tiles with lugs, grooves or uneven backing, it may be required to back butter the tile with adhesive before placing them.
The final bed thickness of SikaCeram-188 KH should be at least 1 mm for wall and 3 mm for floor. Once tiling works are completed, do not disturb the tiled surface for at least 6–8 hours (at +20 °C).
As a guide: SikaCeram-188 KH is used for fixing absorbent tiles up to a maximum size of 10 000 cm² (e.g. 60 cm x 120 cm) for indoor floors, up to 3 600 cm² (e.g. 60 cm x 60 cm) for indoor walls and outdoor paving, and 2 100 cm² (e.g. 30 cm x 60 cm or 45 cm x 45 cm) for façades without any mechanical clamps.

Clean all tools and application equipments with clean water immediately after use. Hardened or cured material can only be removed mechanically.