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CASEA Südanit 280 Alpha Hemihydrate Screed

Name: CASEA Südanit 280 Alpha Hemihydrate Screed
Brand: SMET Building Products Ltd
SKU: 2k31h7gV87hh1fy23gyzD5

Verified by manufacturer 4 months ago

CA-C16-F4

SMET Building Products Ltd

Third party certifications:

EPD
Certificate type
BES 6001
Certificate type
ISO 14001 Environmental Management Systems
Certificate type
ISO 9001 Quality Management
Certificate type

A pumpable high-quality calcium sulfate screed for application at thicknesses between 20-90 mm.

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Application

Südanit 280 Alpha Hemihydrate Screed is suitable for floors in homes, offices, public buildings, and places exposed to similar loads. Südanit 280 Alpha Hemihydrate Screed 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. Südanit 280 Alpha Hemihydrate 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.

Description

Südanit 280 Alpha Hemihydrate Screed is a pumpable, high-quality screed material based on calcium sulfate. It is supplied using a pre-blended compound and is mixed on site with a special blend of approved aggregates to EN 13813: 2002. It is designed for application at thicknesses of 20–90 mm. Südanit 280 Alpha Hemi Hydrate Binder complies with EN 13454-1: 2004 and is CE marked.

Features and benefits:

Smooth laitance free finish.
Pumpable.
Underfloor heating – full encapsulation.
Suitable for underlayment in wet areas.
Reduced drying times.
CE marked.
BS EN 13454-1/ EN 13813: 2002.

General information

Finish	Smooth Guidance for specification option: Laitance free.
Material	Calcium sulphate Guidance for specification option: based screed

Uniclass	Pr_35_31_06_72 Ready-mixed self-smoothing calcium sulfate screedsPrimary
CAWS	M13/10 Proprietary trowelled levelling screeds M13/120 Proprietary self smoothing levelling screeds

Product range	Floor Screeds

Specification data - Ready-mixed self-smoothing calcium sulfate screeds

Compressive strength - 28 days	16 N/mm².
Flexural strength	>4 N/mm². Manufacturer guidance (28 days)
Tensile Adhesion	>1.0 N/mm².
Shrinkage	<0.1%. Manufacturer guidance (28 days)
Drying time	5–6 hours. Manufacturer guidance (Hardening time, before foot traffic)
WaterContent	14–16%. Manufacturer guidance (Recommended)
Reaction to fire	A1 non-combustible.
ThermalConductivity	1.6 W/mK (to EN 12664), 2.6 W/mK (to ISO 22007-1).
Density	Ca. 2088 kg/m³ (2.1 kg/mm/m²). Manufacturer guidance (Wet)
Thickness	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.

Sustainability data

Contains Red List materials	No
Country of material origin	Germany
Country of product manufacture	Germany
Material	Calcium sulphate Guidance for specification option: based screed
Manufacturing plant location	99 Ellrich, Germany
Embodied carbon A1-A3 (production stage) as defined in BS EN 15804	1.20 kg CO₂ eq/kg