weberfloor 4320 fibre flow rapid

weberfloor 4320 fibre flow rapid — flexible self levelling compound alternative to a latex floor levelling compound or latex floor screed

Rapid drying, self-smoothing base and renovation screed suitable for residential and commercial areas.


  • 25kg

About this product

weberfloor 4320 fibre flow rapid is a rapid drying, self-smoothing base and renovation screed — also referred to as a self levelling compound or self levelling screed — which can be applied to depths of 5-50mm used for levelling:

  • Concrete
  • Sand/cement screeds
  • Anhydrite screeds
  • Wooden boards
  • Underfloor heating/warming
  • Insulation boards
  • Existing tiles
  • Bitumen

weberfloor 4320 fibre flow rapid is suitable for covering with:

  • Tiles
  • weberfloor 4150 fine flow thin topping screed
  • weberfloor 4160 fine flow rapid thin topping screed

Suitable for use in residential and commercial areas, light foot traffic is possible after 1-3 hours in normal conditions, tiling is possible after 12hrs and final floor coverings other than tiles can be applied after 2-4 days depending on layer thickness and drying conditions.

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Features and benefits

  • Fibre-reinforced screed for added durability — can be used as an alternative to a latex screed
  • Rapid drying liquid screed
  • Can be used as an underfloor heating screed
  • Low alkalinity flow screed
  • Casein-free sand and cement screed mix
  • Low emissions
  • Compressive strength: C30
  • Flexural strength: F7

Things to consider

  • Cannot be used on external projects
  • Must not be used as a wearing screed — either be directly tiled over or prior to receiving a soft floor covering cover with a thin layer of either weberfloor 4150 fine flow or weberfloor 4160 fine flow rapid
  • When stored unopened in a cool, dry place at temperatures above 5°C, shelf life is 12 months from date of manufacture

Technical & Safety Data Sheets and Certification

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