Concrete

Chryso®Screed Finish FB800

Anti-dust surface enhancement agent

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Technical Data Sheet

Description

Chryso®Screed Finish FB 800 is a ready‑to‑use additive specifically designed for liquid cement‑based screeds. Added during the batching process, it enhances surface finish while significantly reducing screed desiccation and surface dusting.

Chryso®Screed Finish FB 800 acts as a water‑evaporation barrier at the screed surface, helping prevent surface laitance. This limits, or can eliminate, the need for sanding or grinding prior to flooring installation, without increasing screed drying time. When screeds are placed in protected conditions (5–30 °C, sheltered from wind and direct sun), curing agents may not be required.

Application areas

Chryso®Screed Finish FB 800 is suitable for:

  • Cement‑based liquid screeds

Benefits

  • Enhances screed surface finish
  • Acts as a water‑evaporation barrier
  • Significantly reduces surface dusting
  • Reduces or eliminates surface laitance
  • Increases surface adhesiveness for floor coverings
  • May eliminate the need for sanding or grinding
  • Does not increase screed drying time