SCHOMBURG GmbH & Co. KG Aquafinstrasse 2–8 D-32760 Detmold (Germany) phone + 49-5231- 953-00 fax + 49-5231- 953-108 email export@schomburg.de www.schomburg.com
Technical Data Sheet
ASO®-Unigrund-S
Art.-No. 2 04201
Rapid special adhesion promoting primer
moisture resistant plasterboard, brickwork, aerated concrete, lime-sand blocks, cement, calcium sulphate and poured asphalt screeds, levelling compounds, natural stone, steel and glass.
v er
y lo
io n
0799 SCHOMBURG GmbH & Co. KG Aquafinstrasse 2–8 D-32760 Detmold 18 204990 SANIFLEX-EU Construction kit for producing waterproofing for walls and floors in wet rooms
w e m is
s
ASO-Unigrund-S is suitable for use in interior rooms in accordance with the AgBB evaluation scheme (Committee for Health-related Evaluation of Building Products), the French VOC by-law and the Belgian royal decree C-2014/24239. Very low emissions in accordance with GEV-EMICODE, which as a rule leads to positive evaluations within the framework of building certification systems in accordance with DGNB, LEED, BREEAM, HQE. Highest quality level 4, rows 2,3,8,9 in accordance with the DGNB criterion “ENV 1.2 local environmental impact“.
0799-CPR-150 ETA-17/0469 ETAG 022-1 Reaction to fire Release of dangerous substances Water vapour permeability with ASO-Unigrund-D with ASO-Unigrund-GE/K with ASO-Unigrund-S Water impermeability to EN 13967 Crack bridging ability Tensile strength Joint bridging ability Watertightness at penetrations Water resistance Temperature resistance Resistance to alkalis Workability Thickness
E see SDS sd≈ 44m sd≈ 9m sd≈ 6.8m waterproof category 1: 0.4 mm ≥ 0.5 MPa category 2: waterproof category 2: waterproof category 2: ≥ 0.5 MPa category 2: Temperature resistant category 2: Alkali resistant applicable at least 0.5 mm
The product is a component of the SANIFLEX-EU system in accordance with ETAG 022-part 1.
• Ready to use. • Solvent free. • Rapid drying. • For absorbent and non-absorbent substrates. • For interior and exterior use. • Low emissions.
Technical Data: Basis: styrene butadiene Colour: pink – violet Density: approx. 1.33 g/cm3 Packaging: 1 kg, 5 kg Application/ substrate temp: +5° C to +25° C Temperature resistance: -20° C to +80° C
Areas of application: ASO-Unigrund-S is used as a primer to improve the adhesion to absorbent and non-absorbent substrates prior to the installation of ceramic finishes with cement-based or dispersion-based SCHOMBURG thin or mid-bed adhesives. ASO-Unigrund-S reduces the porosity of the substrate and protects moisture sensitive substrates from the water in cement-based adhesives. Suitable for use on existing tiled finishes, hydraulically setting cement, cementlime renders and gypsum plasters, gypsum fibre boards,
Ready for tiling: on non-absorbent substrates after complete through drying (approx. 1 hour at +15° C), on absorbent substrates as soon as the ASO-Unigrund-S surface is dry
1/2
05/18
Product application: Stir thoroughly before use. Evenly apply a thin coat of ASO-Unigrund-S at right angles with a foam or lamb’s wool roller. Use neat on non-absorbent substrates, on absorbent substrates dilute 1:1 with water. On nonporous substrates further processes may only be carried out once completely dry. Drying time approx. 1 hour. On absorbent substrates tiles can be laid as soon as the ASO-Unigrund-S is surface dry – approx. 5 minutes – and touch-dry. The dry coating is transparent-pink and sand grey. When using externally, protect ASO-Unigrund-S with a bonded waterproofing system for use beneath tiled finishes e.g. AQUAFIN-2K/M.
Cleaning agents: water, remove dried on material with ASO-R001 Storage: Frost free, min. 12 months in the original unopened container. Use opened packaging promptly. Consumption: approx. 50 to 100 g/m2 dependent on the porosity of the substrate (Note: Technical application trials have shown that the consumption is 220 g/m2 when used on old tiled finishes.) Substrate preparation: The substrate must be dry, load-bearing, adequately flat, free from penetrating cracks and free from separating substances such as oil, paint, laitance and loose components. Abrade calcium sulphate screeds, vacuum followed by priming with ASO-Unigrund-S. Substrates must be dry, sound and free from contamination, dust and separating agents. Remove weak or adhesion impairing layers e.g. old adhesive, smoothing compounds or paint residues by e.g. mechanically brushing, abrading, scabbling or shot blasting.
Advice: • When applying ASO-Unigrund-S protect areas not to be treated. • Wash off splashes immediately with water. GISCODE: D1
The moisture content for ceramic tiling, when measured by a carbide hygrometer (CM device), must not exceed: • Cement-based screed 2.0 CM% for screeds on insulation or separating layers in interior areas. • Calcium sulphate screeds without underfloor heating 0.5 CM%. • Calcium sulphate screeds with underfloor heating 0.3 CM%. • Gypsum based plaster 1.0 CM%.
Information about the emission level of volatile compounds in indoor air, which pose a health risk by inhalation, on a scale from class A+ (very low emissions) to C (high emissions).
This technical data sheet does not consider local building codes or legal requirements. It shall be used as general reference for the product, based on our current knowledge and experience. Legally binding is only the latest Data Sheet from one of our foreign subsidaries inside their sales territory. In any case of uncertainty please consult our technical department for further information. 2/2
WKD/CoS/TM