Bostik ScreedMaster Flex


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Bostik Screedmaster Flex is a flexible levelling compound reinforced with glass 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.

  • Fibre-reinforced
  • Self-levelling
  • Rapid setting
  • Suitable for underfloor heating
  • Suitable under parquet/wood floors > 3 mm



Approx. 5.2m² per 3mm layer



25kg bag, compressive strength after 28 days =  >30 N/mm²

Additional information

Weight 25 kg
Pack size


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