Unicell® WF

WRc - NSF, Test Report No. MAT/LAB

250E, satisfied the criteria set out in

BS 6920 : Part : 2000, Clause 7 and the product is

suitable for use with hot (up to 30 ^oC) and cold water.

Characteristics For Repair Mortar (from PCCS-RM CI. 5.1 Table 1)

*All of the above data complies with Product Conformity Certification Scheme.

9 months from the date of production

The product must be stored properly in original, unopened and undamaged sealed packaging in cool dry conditions at temperatures between +5 °C to +35 °C, relative humidity < 80%, make sure the space has good ventilation. Protect from direct sunlight. 

Always refer to packaging and the current Safety Data Sheet for information on safe handling and storage.

Approx. 58 bags/m³

Unicell® WF mortars should be mixed in a forced action mixer or using a slow speed drill (typically 500 rpm) and paddle.

Place the whole bag of powder in the mixing vessel and pour 3.5–4 litres of clean water in the powder. Mix for two minutes to achieve a homogenous workable mortar.

Once mixed the mortars should be applied to the prepared and where necessary primed substrate before the primer coats dries. Build up successive layers as required allowing intermediate layers to firm up.

Intermediate layers should be scratched or keyed and primed before the next layer is applied. It is important that the mortar is applied to wet/tacky primer. If the primer dries it must be thoroughly scarified and reapplied. Layer thickness is 6 mm up to 30 mm on overhead areas and 6 mm up to 75 mm on vertical surfaces. N.B. It is not always possible to achieve high build application, especially when working over large areas.  Application depth is dependent upon the size and profile of the repair area, the consistency of the mortar, and the skill and technique of the applicator.

Finish the surfaces to the desired profile using a wood or steel float, trowel, or sponge. To avoid slumping on high build application, the material should be allowed to firm up before final finishing is carried out.

Allow the area to cure properly and consult Sika®’s technical department for curing method in severe conditions.

Clean all tools and equipment with clean water immediately after use.