What is the best method for damp proofing anhydrite screeds?

With UZIN PE 425.

The industry has seen a growth in the use of anhydrite screeds (also known as calcium sulphate or gypsum screeds) but there has always been a problem with adequately protecting against residual moisture, especially if the relative humidity is above 85%. UZIN has developed a solution for damp proofing anhydrite screeds for residual moisture up to 95% RH. With UZIN PE 425 projects can be expedited without the long delays previously caused by damp anhydrite screeds.

Video:

Step by step guide:

*Under normal conditions at 20°C and 65% relative humidity. See product data sheets for more information.

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UZIN NC 110 Gypsum Smoothing Compound

Calcium sulphate based smoothing compound, with Level Plus Effect S.

  • Superior flow characteristics
  • Very smooth surface
  • Rapid drying progress
  • Low stress

UZIN PE 280 Super Fast Primer

Dispersion primer with carbon technology for smooth and dense surfaces

  • Ready to use
  • Film-forming
  • Ideal bonding agent on dense surfaces
  • Also suitable for wall applications
  • High-speed construction product

UZIN PE 404 Resin Moisture suppressant

1-component, rapid drying resin Residual Moisture suppressant

  • Rapid drying
  • Easy to use
  • Ready mixed
  • Solvent-free

UZIN PE 425 2-Component Water-Based Epoxy Primer

Universal epoxy primer for reinforcement of weak screeds or prior to the moisture suppressant system

  • easy to use
  • deep reinforcement of the upper screed zone
  • improves shear strength
  • can be used in the moisture suppressant system on calcium sulphate screeds
  • improves the bonding strength with UZIN STP and PUR adhesives
  • can be overlaid in combination with UZIN PE 280
  • diluted with 10% water
  • vapour diffusive

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