BORNIT^® Bitumen 100/25

status technical data sheet

30th April 2026

Areas of application

BORNIT^® Bitumen 100/25 is used for hot-bonding various bituminous substrates, such as bituminous roofing membranes, raw felt sheets and insulation materials designed for hot-bonding, primarily in roofing applications. Before application to mineral substrates, a primer coat of BORNIT^® Bitumen Primer must be applied.

Type and properties

BORNIT^® Bitumen 100/25 is an unfilled adhesive compound made from petroleum bitumen. Special processes have been used to increase its plasticity to such an extent that all standard bonding tasks encountered on a building site can be carried out without difficulty.

Surface

The surface should be dry, dust-free, grease-free and stable.

Processing

It is essential to monitor the temperature using a thermostat and to stir the contents of the melting tank to prevent localised overheating of the material. Once the working temperature has been reached, the adhesive is spread evenly between the substrates to be bonded using a broom or brush.

Consumption

approx. 1.3 kg/m² with an adhesive layer of 1 to 1.5 mm
depending on the specific application or the manufacturer’s specifications for the membrane or insulation material

Product type

bituminous hot-melt adhesive

Base

bitumen

Solvent

none

Density at +20 °C

approx. 1 g/cm³

Softening point acc. to cone/ring

≥ +100 °C

Consistency

solid (in delivery form)

colour(s)

black

Application

broom, brush

Cleaning

BORNIT^® MultiClean Spray, BORNIT^® MultiClean, BORNIT^® Bitumen Cleaner

storage

protect from direct solor irradiation

Shelf life

storable for 6 months

Substances hazardous to health in terms of the ordinance on hazardous materials

none

Hazard class according to ADR

none

Boiling start and Boiling range

> +320 °C

Flash point

220,0 °C

Melting temperature

+180 °C up to +200 °C

processing temperature

+180 °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.

Storage

Protect from direct solar irradiation - storable for 6 months.

Disposal note

Only recycle completely empty containers. Material residues can be disposed of according to AVV-ASN: 170302 (bituminous mixtures, except for those falling under 170301).

Note

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.

Recommended, personal protective equipment: