Fibre reinforced underlayment.
A flexible levelling compound reinforced with fibre. It can be applied between 3–30 mm thickness in a single application (5 mm maximum total thickness on mastic asphalt screeds). It is suitable for use with warm water underfloor heating installations, provided a maximum surface temperature of 27°C is not exceeded. The heating must be switched off at least 48 hours before and after application.
May be used to encapsulate electrical radiant underfloor heating (UFH) mats with a minimum of 5 mm covering before bonding tiling products and 10 mm before bonding resilient textile or timber flooring. The substrate to which the UFH matting is fixed must be sound and stable.
The product is not affected by heat from warm water underfloor heating systems, electrical radiant mats or in glazed areas. Electrical underfloor heating must be left switched off for a minimum of seven days after application.
Features and benefits:
In all cases, the subfloor must be primed prior to application of the smoothing compound as below. When priming the following substrates, it is recommended to use the following primer:
C42/320 Levelling/ smoothing coats
M10/160 Proprietary self smoothing levelling screeds
M10/7 Proprietary quick drying levelling screeds
M13/120 Proprietary self smoothing levelling screeds
M40/460 Smoothing underlayment
M50/460 Smoothing/ levelling underlayment compound
Standard product features
Drying times (<3 mm thickness at 18-20°C):