Status technical data sheet
03 December 2020
Areas of application
For priming of porous, absorbent surfaces like concrete, masonry, wood (without varnish or topcoat), especially in the floor area.
Type and properties
BORNIT® Concrete Primer is a two-component adhesion promoter for polysulphide sealants preferably used in the floor area. For priming the fusion faces prior to using BORNIT® Cold Sealing Compound and BORNIT® Cold Joint Sealant.
- easy to mix
- short flash-off time
- less equipment and labor required for processing
The substrate must be dry, free from dust and grease as well as loose particles.
The components A + B are mixed and the concrete primer evenly applied with a brush. After a flash-off time of 30 minutes to 2 hours (depending on the temperature), the sealant can be applied. The concrete primer must not be completely dry. If more than 24 hours should have passed, the old primer layer must be roughened and new concrete primer applied. It must be observed that no moisture film has formed on the primer surface due to undercutting of the dew point.
approx. 0.01 - 0.02 ltr. / linear metre depending on the joint dimension
roduct data in brief
Density at +20 °C
Komp. A: ca. 1 g/cm³ / Komp. B: ca. 0,9 g/cm³
colourless, slightly yellowish
brush, can be painted
Thorough hardening time
30 minutes to 2 hours, depending on the temperature
below 25°C, product not sensitive to frost
in originally sealed container storable for 12 months
Component A: VOC category A, subcategory h
Component B: VOC category A, subcategory h
Actual permissible VOC content
Component A: 530 g/ l (component A+B)
Component B: < 680 g/l
Hazard class according to ADR
entzündbare Flüssigkeiten (Flam. Liq. 2)
component A to component B = 4:1 parts by weight
Health and fire protection, occupational safety
For information on handling, safety and ecology, please refer to the current safety datasheet.
The product can be stored for 12 months in originally sealed container at storage temperatures below 25°C.
Only recycle completely empty containers. Material residues of component A + B can be disposed of according to AVV-ASN: 080409 * (adhesive and sealing compound residues containing organic solvents or other hazardous substances).
The above information replaces all previous technical information about the product. Thus, this information is no longer valid. The details have been compiled according to the latest state of application technology. Please observe, however, that, depending on the state of the construction object, deviations from the method of application suggested in the datasheet may be required. Unless agreed otherwise in individual contracts, any information contained in the datasheet shall be non-binding and thus does not represent an agreed product constitution. We reserve the right to any changes in the information contained in this datasheet anytime.