Rapid-set alpha hemihydrate floor screed binder.
Suitable for internal use for floors in homes, offices, public buildings and places exposed to similar loads. It may be applied as a levelling screed directly onto a load bearing floor, unbonded on a separating barrier (polythene) or as a floating floor and is particularly suited in conjunction with underfloor heating or cavity floors. It 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. Suitable for underlayment in wet areas.
A specially formulated rapid-set calcium sulfate binder suitable for the production of top quality self-levelling (flowing) floor screeds, simply by blending with suitable sand and water on site. CASEA Sudanit 280 Binder complies with BS EN 13454-1 and is CE marked.
Features and benefits:
M13/10 Proprietary trowelled levelling screeds
M13/120 Proprietary self smoothing levelling screeds
Compressive strength - 28 days
>25 N/mm², >30 N/mm², >40 N/mm².
>4 N/mm², >6 N/mm², >7 N/mm².
Hardening time (before foot traffic)
8–12 hours depending on site conditions.
Reaction to fire
Minimum: Bonded, 20 mm. Unbonded, 30 mm. Domestic, 35 mm. Commercial, 40 mm. Over underfloor heating pipes: 25 mm (BS 8204-7); Maximum: 90 mm.