weberfloor fibre rapid 4320

weberfloor fibre rapid 4320 — 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 fibre rapid 4320 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 fibre rapid 4320 flow rapid is suitable for covering with:

  • Tiles
  • weberfloor smooth 4150 thin topping screed
  • weberfloor smooth rapid 4160 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

  • Low Dust Technology™ reduces the amount of airborne dust released during the mixing process
  • Application thickness as low as 20mm for use on unbonded applications
  • Fibre-reinforced screed for added durability — can be used as an alternative to a latex screed
  • Reduces labour by up to 90% compared to sand and cement
  • Suitable for pump application, allowing extremely high speed of installation
  • Rapid setting for quicker access to follow-on trades
  • Able to receive a final floor covering in as little as 48 hours
  • Low shrinkage, reducing the risk of cracking
  • Flowing product that leaves no voids, weak spots or areas of poor thermal performance
  • Trusted internationally for over 25 years

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 smooth 4150 or weberfloor smooth rapid 4160
  • 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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