SikaCeram®-205 PK

Cementitious mortar modified with polymers.

6 Months from date of production if stored properly in undamaged, unopened, original sealed packaging in dry and cool conditions.

Store in a dry, undamaged, unopened, original sealed bags, protected from direct sunlight and frost, at temperature between +5 °C and 35 °C.

In normal conditions, no primer is required.

However, for the following difficult substrates primer is                     recommended:  

Substrate: Very high absorption (Gypsum Plaster / Anhydrite Screed)

Primer: Sika® Primer 10

Application and consumption details etc. of primers are given in the relevant Product Data Sheet.

~ 0.5 mm

6.75-7.25 L of water per 25 kg bag.

~ 1.9 kg/l (at +20°C)

~ 4 hours (at +20°C)

25 minutes

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 kilos of powder per m² :

The substrate must be structurally sound, laitance free, clean and free from dirt, oil, grease or other contaminants and loose or friable particles.

Weak concrete and/or surface laitance must be removed.

Small blowholes or irregularity can be repaired using SikaCeram®-205 PK. However, large repairs to the substrate, filling of blowholes/voids must be carried out using appropriate products from the SikaTop®, Sika® MonoTop or Sika® Rep range of materials or site produced mortar improved with Sika® Latex. Allow a waiting time of 24 to 48 hours before placing the tiles.

All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and/or vacuum.

If the substrate is very porous if the temperature is high, and/or the relative humidity low, it is advisable to pre dampen the surface - do not leave any standing water.

Variations in the level must be less than 5 mm, measured with a 2-meter straight edge. If necessary, the substrate must be levelled prior to application. If the level is not good enough, the substrate must be levelled with a mortar made with Sika® Latex, Sika® MonoTop or Sika® Rep type of product.

• In refurbishment work, on existing ceramic tiles:
• Check the ceramic tiles to ensure soundness
• Remove any tiles that are not adhering properly and re-bond them
• Grind off glazed tiles and remove dust
• Wash other types of tiles with suitable detergent and rinse well with clean water. If after this washing operation, they remain greasy, repeat, then grind and remove dust etc.

Mixing Time

Mix 25 kg 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.

Leave material to stand in container (for a minimum 5 minutes). Then remix the material for 15 seconds - the product is now ready for use.

Mixing Tools

SikaCeram®-205 PK must be mechanically mixed using a forced action mixer or in a clean container using a drill and mixing paddle (< 500 rpm). A normal concrete (free fall) mixer is not suitable.

Applied product ready for use At +20°C

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