CASEA Südanit 400 Thermal Anhydrite Binder

Südanit 400 Thermal Anhydrite Binder is a specially formulated calcium sulphate binder suitable for the production of top-quality, self-levelling (flowing) floor screeds, simply by blending with a suitable sand and water on site or ready-mix plant. Südanit 400 Thermal Anhydrite Binder complies with EN 13454-1: 2004 and is CE marked.

Südanit 400 Screed is suitable for floors in homes, offices, public buildings and places exposed to similar loads. Südanit 400 Screed may be applied as a levelling screed directly onto a load bearing floor, unbonded on a separating barrier (polyethene), as a floating floor and is particularly suited in conjunction with underfloor heating or cavity floors. Südanit 400 Screed should be covered with a floor finish such as tiles, linoleum, parquet, cork or carpet. If a cement based adhesive or smoothing compound is required the surface of the screed must first be sealed, using an appropriate acrylic primer/sealer.

Related Downloads

icon-pdf  TDS CASEA Sudanit 400 Binder

icon-pdf  SMET Floor Screeds and Compounds Product Selector

NBSplus National Building Specification Clause

BIM Building Information Modelling Object

Benefits of Südanit 400 Thermal Anhydrite Binder

• Pumpable – High Flowability
• Early Trafficking
• Very Low Shrinkage
• Reduced Drying Times
• CE Marked
• EN 13454-1: 2004

Technical Details for Südanit 400 Thermal Anhydrite Binder

Screed Specification EN 13813: 2002
Maximum Thickness90mm
Minimum ThicknessBonded: 20mm

Unbonded: 30mm Domestic:

35mm Commercial: 40mm

Over Underfloor heating Pipes: 25mm (BS 8204-7)

Use (External Use)No
Use (Internal Use)Yes
Compressive Strength (28 days)> 25 N/mm²

> 30 N/mm²

Flexural Strength (28 days)> 5 N/mm²

> 7 N/mm²

Tensile Adhesion> 1.5 N/mm²
Flow Rate220 – 260 mm (slump flow – Hägermann cone)
Light foot traffic10 – 12 hours
Hardening TimeFinal Covering: 2 – 6 weeks dependent on thickness and drying conditions
Pot life (open time as mortar)Maximum 40 minutes depending on ambient conditions.
Reaction To FireA1 Non-Combustible
Packagingbig bags and bulk

Packaging: Available in bulk and 1.2 tonne Big Bags