Technical data sheet ASO®-Unigrund-K Priming concentrate
Material number
Package type
Colour
Units / pallet
Pc/package
205558001
1 l, bottle
Blue
450,000
6,000
205558002
5 l, canister
112,000
1,000
205558003
10 l, canister
60,000
205558004
25 l, canister
24,000
205558005
210 l, drum
2,000
205558006
1,000 l, IBC
Areas of application As a primer on weak and highly absorbent substrates On concrete, plaster substrates, cement-based screed, calcium sulphate screeds, gypsum boards and masonry work for interior and exterior use
Product features Dispersion primer Concentrate - can be diluted with water at up to 1:6 Rapid drying Regulates the absorbent behaviour of absorbent substrates Protects subsequent levelling compounds or thin-bed mortar from excessively rapid water removal
Advantages System component for bonded waterproofing rapid construction progress Binds fine dust effectively Economical thanks to being a concentrate Coloured for better working inspections
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 1/3
21/04/2026
Technical data sheet ASO®-Unigrund-K Existing test certificates French cert. VOC AgBB certificate Belgian cert. VOC EMICODE licence
Technical Data Material properties Product components Base material Consistency Density (spec. weight) Classification of the reaction to fire in accordance with DIN EN 13501-1
1 component system Acrylate dispersion Liquid approx. 1 g/cm³ E
Mixing Mixing time
approx. 1 minutes
Application Substrate temperature Foot traffic after Consumption (primer) Application temperature
approx. 5 - 30 °C approx. 60 - 90 minutes approx. 30 - 80 g / m² approx. 5 - 30 °C
Processing equipment Aids/tools Brush Spray equipment Brush Colour roller
Suitable substrate Cement-based screed (CT) Calcium sulphate screeds (CA, CAF) Concrete Dry screeds Raised floors Floor levelling compounds Tile bearing elements
Cement plaster Lime-cement plaster Gypsum plaster Light plaster Gypsum boards Gypsum fibre boards Cement and fibre cement boards
Preparing the substrate Requirement for substrate 1. Load-bearing 2. Clean 3. Dry 4. Free of cracks 5. Free of adhesion inhibiting substances
Preparing the surface 1. Flow screeds must be roughened and vacuumed. 2. Weak or adhesion inhibiting layers must be brushed off mechanically, sanded, milled or shot blasted.
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 2/3
Technical data sheet ASO®-Unigrund-K Application Application 1. Dilute ASO®-Unigrund-K 1:3 to 1:6 with water, depending on the substrate condition, application and absorbency. 2. Use at a mix ratio of 1:3 under wall and floor levelling compounds. 3. Apply ASO®-Unigrund-K with suitable tool. 4. Oversaturation or forming puddles must be avoided. 5. ASO®-Unigrund-K must be completely dry before further work can be done on the primed surfaces.
Cleaning tools Clean tools thoroughly with water after use.
Storage conditions Storage Store in a frost-free, cool and dry place. At min. 5 - 40 °C for 15 months in the original canister. Promptly use opened container.
Emission behaviour / building certification systems Very low emissions in accordance with GEV-EMICODE, which normally results in positive evaluations within the scope of building certification systems in accordance with DGNB, LEED, BREEAM, HQE. Suitable for indoor use in accordance with the French VOC Directive and Belgian Royal Decree C-2014/24239.
Notes The primer must be dry before applying the next coat. Protect surfaces that are not to be treated from the effects of ASO®-Unigrund-K! Clean splashes immediately with water.
Observe applicable safety data sheet!
The rights of the buyer with regard to the quality of our materials are based on our terms and conditions of sale and delivery. Our technical advice team will be happy to advise you in the case of requirements that exceed the scope of the application described here. In order to be binding, a legally binding written confirmation is required. The product description does not release the user from a duty of care. Lay a test area in the event of uncertainty. This version becomes invalid in the event of a new version being issued.
SCHOMBURG GmbH & Co. KG · Aquafinstr. 2–8 · D-32760 Detmold (Germany) · Tel. +49-5231-953-00 · Fax +49-5231- 953-333 · schomburg.com 3/3