Gypsol Modular Gypsum Based flowing screed

Gypsol Modular Gypsum Based flowing screed

LKAB Minerals

Flowing, self-compacting floor screed specially formulated for use in modular construction. It is suitable for bonded, unbonded or floating aplications with or without underfloor heating.

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Gypsol Modular self-compacting flowing screed is made to exacting standards by quality assured manufacturers to BS EN 13813. It is a combination of high quality Gypsol binder, specially selected sands, water and special additives where required. It is designed specifically for use in modular construction systems and screed is suitable for the encapsulation of an underfloor heating system, either electric or warm water. Gypsol Modular Gypsum based flowing screed is suitable for use in both residential and commercial including apartments, schools, prison units, hospitals and single dwellings where lightweight and durable modular floors are required. Gypsol Modular Gypsum based flowing screed also improves the environmental and durability characteristics and gives a concrete feel to a lightweight steel floor.

General information


Suitable for underfloor heating, ergonomically friendly installation, protein free, comptabile with a range of modular applications, durable, the screed adds solidity to lightweight floors

Uniclass 2015

Pr_35_31_06_72 Ready-mixed self-smoothing calcium sulfate screedsPrimary


M13/120 Proprietary self smoothing levelling screeds

Specification data - Ready-mixed self-smoothing calcium sulfate screeds

Product Reference

Gypsol Modular Gypsum Based Flowing Screed

Standard product features

Physical properties:

  • Appearance: Off white fluid mortar.
  • Density: Wet – 2200 kg/m³, dry – 2000 kg/m³.
  • Minimum required strength: CA-C30-F6.
  • Required flow (to BS EN 13454-2): 230–270 mm.
  • Drying time (to <75% relative humidity (RH) at 50 mm depth): Natural drying 28 days; forced drying 13 days. Can take foot traffic 24–48 hours and loading 5–7 days (based on good drying conditions of 60% RH at 20ºC).
  • Fire rating: Class A1fl.

Application (minimum depth):

  • Bonded: 25 mm.
  • Unbonded: 30 mm.
  • Floating: 35mm domestic, 40 mm commercial.
  • Acoustic: 80kg at 40 mm.
  • Cover to conduits: 25 mm.

Gypsol screeds are suitable for use on most substrate types.


  • Recycled content: Binder – 98%, mortar – up to 40%.
  • Carbon emissions: Binder – 10–20 kg/tonne, mortar – 20–40 kg/m³.
  • VOC: Zero.
  • Recyclability: 100%.

Digital objects

Platform Compatible Version Certified to




Revit 2016


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