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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
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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+44 (0)28 3026 6833 Website

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