SikaCeram® A 200

Styrene butadiene emulsion (SBR)

12 months from production date

Store properly in undamaged original sealed packaging, in dry cool conditions at temperatures between 5°C and 25°C. Protect from direct sunlight, heat, contamination and moisture.

~1.01 kg/l (at 25°C)

Note: When tested as Thick bed (semi-dry mix system), refer to "Mixing ratio" section below.

Note: When tested as Thick bed (semi-dry mix system), refer to "Mixing ratio" section below.

Note: When tested as Thick bed (semi-dry mix system), refer to "Mixing ratio" section below.

• 1 / 1 dilution of SikaCeram® A 200 with water is suitable for this application.

• Screed to be bonded or un-bonded as per BS 8204-1.
• Slurry bond to slab: 2 : 1 : 1 (cement : SikaCeram® A 200 : water)
• To minimise the risk of moisture staining when bedding natural stone, use suitable sealer.
• It may be necessary to add water to achieve the desired consistency dependent upon type of sand utilized.

^{*Depending on screed moisture requirements.}

• Screed mix design 1:4 / 1:5
• Screed aggregate ideally even distribution of 0 - 8 mm clean, dry, sharp sand (Screed thicknesses > 50mm replace 15 % aggregate with 8 - 10 mm light concrete aggregate).

• The proportion of sand to cement will vary with the width of joint to be grouted.

For mix-design details, refer to section: Mixing ratio.

• All mixing should be carried out in a forced action mixer although hand mixing is acceptable where the total weight of mix does not exceed 25 kg.
• Charge the mixer with the correct quantity of sand and cement, and premix for one minute.
• Pour in the desired quantity of SikaCeram® A 200 (premixed with water if necessary) and mix for 3 minutes.
• Due to the strong plasticising action of SikaCeram® A 200, care should be taken to ensure prolonged mixing does not occur.
• Material will remain workable for approx. 3 hours at 35°C.
• Where possible, protect mixed material from wind, or direct sun.

• Apply to surface using notched trowel technique.
• Working in areas of approximately 1 metre at a time to avoid skinning of the adhesive.
• Set dry tiles in bed of mortar, and slightly twist to ensure good adhesion. When tiles are aligned in final position lightly tap using a wooden float.
• Allow tiles to set for 24 hours before grouting.
• Alternatively, especially when tile fixing in permanently wet conditions, or fixing heavy decorative cladding, solid bed fixing is recommended.
• Apply solid bed to required depth, and "push" the tiles into place.
• Ensure that the ribs on the back of the tiles are filled in using buttering techniques. This will ensure full contact of adhesive.

Fresh applied mortar must be cured properly especially at high temperatures in order to prevent plastic and drying shrinkage. Use Sika® Antisol® products as a curing agent or apply wet hessian.

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