BORNIT® Roof Primer 220

primer | solvent-free | acrylic dispersion | roof
short information
  • special primer for BORNIT®-Dachacryl 230
  • high penetration depth into the substrate
  • solvent-free
  • low-odour
Roof Primer 220
10 ltr. / bucket
sufficient for:
EAN code
euro pallet
50.0 m²
4 017228 00489 1
40 bucket
approx. 0.2 l/m², depending on condition and absorbency of the substrate
storage note
  • dry, cool, but frost-free!
  • in originally closed containers storable for 12 months

complementary products
follow-up products
status technical data sheet
09 November 2020

areas of application
BORNIT® Roof Primer 220 is a special primer for subsequent coating with BORNIT® Roof Paint 230. BORNIT® Roof Primer 220 must only be used on absorbent substrates (e.g. clay, concrete, fibre-cement plates). Non-absorbent substrates, as e.g. metal and bituminous roof membranes are not suited for the product.

type and properties
BORNIT® Roof Primer 220 is a solvent-free, low-odour primer with a solidifying effect and high penetration depth into the substrate.

  • fast drying time
  • easy to process

The substrate must be clean, dry, firm, stable and free from separating substances. Roof surfaces with organic components, like fungi, algae or moss infestation must be thoroughly cleaned by high-pressure cleaning with water. Defective coatings must be removed entirely.

Generously apply BORNIT® Roof Primer 220 one time with a penetrating primer brush or with airless spraying equipment (nozzle size 0.011-0.013 inches, 50° spraying angle, 150 bar). Clean work equipment with water immediately after use. Processing is possible at temperatures from min. +5 °C. Do not apply with an impending risk of frost, rain or more than 80 % relative humidity.
At 20 °C and 65 % relative humidity, the product is surface-dry after 3-5 hours and can be recoated. At lower temperatures and/or higher humidity, drying times are prolonged.
Thoroughly clean roof surfaces with organic components, like fungi, algae or moss infestation, and other contaminations by wet-blasting them with water. Depending on the substrate, the amount applied should be chosen such that the primer can be completely absorbed and does not form a glossy film after drying. Weakly absorbent substrates, e.g. clay or fibre-cement plates, must only be primed with a thin layer. In case of strongly absorbent substrates, for which only absorbency is to be reduced, the roof primer can be diluted up to 1:1 with water. BORNIT® Roof Primer 220 is not suited for non-absorbent substrates.

Note: Protect components, which are not to be treated, from splashes – e.g. by covering them – since dried up roof primer can hardly be removed anymore. Subsequently, following thorough drying of the primer, BORNIT® Roof Paint 230 can be applied.

approx. 0.2 l/m², depending on condition and absorbency of the substrate

product data in brief
density at +20 °C
approx. 1.00 g/cm³
8.0 - 9.0
spreadable and sprayable
small or large brush, airless spraying equipment
processing temperature (ambient and substrate)
from +5 °C
clean tools with water immediately after use
dry, cool, but frost-free!
shelf life
in originally closed containers storable for 12 months
GISCODE link comp. A
VOC category
actual permissible VOC content
0 g/ltr.
hazard class according to ADR
boiling start and Boiling range
+100 °C
Nozzle size for airless
0.011 – 0.013 inch
Spraying angle
Spraying pressure
150 bar

health and fire protection, occupational safety
Caution - Only use in well-ventilated outdoor areas. Not suitable for use in closed rooms or poorly ventilated pits!
Do not eat, drink or smoke while working, keep away from sources of ignition.

To ensure safe handling of the product, the physical, safety, toxicological and ecological information provided online, the information in the current safety data sheet and the additional information on the label must be read and followed before purchasing or using the product! The applicable regulations, ordinances and laws must be complied with.

In case of doubt, please contact the BORNIT® application technology department or the BORNIT® service hotline on +49 375 2795 123.

Store dry, cool and frost-free. In originally sealed containers storable for 12 months.

disposal note
Only recycle completely empty containers. Material residues can be disposed of according to AVV-ASN: 080112 (paint and varnish residues, except for those falling under 080111).

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.

Kein Gefahrgut im Sinne der Transportvorschriften.

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