BORNIT® Roof Varnish

bitumen | roof coating | initial coating | renovation | roof and weldable sheetings
short information
  • solvent-based bitumen top coat
  • for the initial coating as well as renovation and maintenance
  • for bituminous and mineral roof coverings
  • UV-resistant
  • can be brushed or sprayed on
Roof Varnish
5 ltr. / bucket
sufficient for:
EAN code
euro pallet
12.5 m²
4 017228 00354 2
75 bucket
Roof Varnish
10 ltr. / bucket
sufficient for:
EAN code
euro pallet
25.0 m²
4 017228 00355 9
45 bucket
Roof Varnish
25 ltr. / bucket
sufficient for:
EAN code
euro pallet
62.5 m²
4 017228 00356 6
18 bucket
Roof Varnish
200 ltr. / barrel
sufficient for:
EAN code
barrel pallet
approx. 500 m²
4 017228 00357 3
2 barrel
approx. 0.4 l/m² per coat (2 coats are recommended)
storage note
  • store in a dry place
  • product is not sensitive to frost
  • keep away from sources of ignition
  • in originally sealed container storable for 12 months

status technical data sheet
12 April 2024

areas of application
BORNIT® Roof Varnish is a bitumen solution with high penetration capacity and thus optimally suited for regenerating weathered bitumen roof coverings. BORNIT® Roof Varnish is also used as a protective layer directly after the roof covering has been laid. BORNIT® Roof Varnish is also suitable for protecting structures made of concrete, bricks or plastered surfaces against ground moisture. BORNIT® Roof Varnish is not suitable for corrugated bitumen sheets.

type and properties
BORNIT® Roof Varnish is a solvent-containing, brush- and sprayable bitumen-based coating. The bitumen roof coating is suitable for the initial coating as well as for maintenance and renovation of roofing membranes, welded membranes (except polymer bitumen membranes) and other bituminous coverings.

  • good coverage already after the first coat
  • very easy handling, because it is ready to use
  • universal use, therefore a wide range of application possibilities
  • good adhesion due to white spirit content
  • economical and cost-saving, as little equipment, material and labour is required

The substrate must be dry, clean and free of grease. BORNIT® Roof Varnish adheres to all common building substrates. For heavily weathered and chalking, mineral substrates, prime with BORNIT® Bitumen Primer.

BORNIT® Roof Varnish is ready for use. BORNIT® Roof Varnish must be stirred before application! During application, ensure that the ambient and substrate temperature does not exceed +35 °C! Two coats are recommended.

approx. 0.4 l/m² per coat (2 coats are recommended)

product data in brief
product type
bitumen coating without fillers
bitumen, solvent
white spirit
density at +20 °C
0.91 - 0.93 g/cm³
film-forming components
approx. 60 %
large and small brush, roller, spraying equipment (airless)
processing temperature (ambient and substrate)
at least +5°C up to +35 °C
thorough hardening time
max. 8 hours at +20°C
BORNIT® MultiClean Spray, BORNIT® MultiClean, BORNIT® Bitumen Cleaner
store in a dry place product is not sensitive to frost keep away from sources of ignition
shelf life
in originally sealed container storable for 12 months
GISCODE link comp. A
VOC category
permissible according to VOC category g/Lb/: < 350 g/l
actual permissible VOC content
< 350 g/l
hazard class according to ADR
flammable liquids (Flam. Liq. 3)
Acc. to Industrial Safety Regulation (BetrSichV)
boiling start and Boiling range
> +150 °C
upper/lower explosion limit
6.4 - 0.67 Vol-%
flash point
36.0 °C

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.

In originally sealed containers storable for 12 months, product is not sensitive to frost.

disposal note
Only recycle completely empty containers. Material residues 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.
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UFI 5HC0-0088-W00Q-G5AP

Safety Data Sheet Poison Information Centre , 24h: +49-361-730730

ERFURT - Poison Control Centre Erfurt, Joint Poison Information Centre of the federal States of Mecklenburg-Western Pomerania, Saxony, Saxony-Anhalt and Thuringia; ggiz@ggiz-erfurt.de; www.ggiz-erfurt.de

-     What: name of the substance or product as precisely as possible, etc.
-     How much: as exact a quantity as possible
-     Who: Age, weight, sex and condition of the person(s) concerned.
-     When: Time of the event
-     Where: Place of occurrence
-     How: ingestion, inhalation, skin contact, etc.
-     Why: accidentally or intentionally


UN 1993

Hazard pictograms

signal word

Hazard-determining components for labelling
Hydrocarbons, C9-C11, n-alkanes, isoalkanes, cyclics, <2% aromatics; Hydrocarbons, C9, aromatics

H226: Flammable liquid and vapour.
H336: May cause drowsiness or dizziness.
H412: Harmful to aquatic life with long lasting effects.

EUH066: Repeated exposure may cause skin dryness or cracking.

P102: Keep out of reach of children.
P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P301 + P310: IF SWALLOWED: Immediately call a POISON CENTER or doctor.
P331: Do NOT induce vomiting.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.

recommended, personal protective equipment: