BORNIT^® Joint Tape

status technical data sheet

25th March 2026

Areas of application

BORNIT^® Joint Tape is used for new construction and rehabilitation of asphalt road surfaces, like:
• longitudinal connection of parallel traffic lanes
• connection with lateral connections and attachments
• connection with kerbstones and gutters
• transverse and longitudinal connections new to old in utility trench construction
• connection between existing and new top layer (cold-hot connections)
• connection to road installations, like manhole covers, valve covers and hydrant caps, road gullies

Type and properties

BORNIT^® Joint Tape is a high-quality bituminous joint tape made from polymer-modified bitumen, characterised by the following material properties: easy to apply, secure adhesion to the respective substrate, flexible with excellent elongation properties, and permanently watertight. BORNIT^® Joint Tape is used for joint formation and the sealing of connections in asphalt road construction. BORNIT^® Joint Tape meets the requirements of TL Fug-StB 24, performance class B.

Surface

All substrates must be dry, clean, frost-free and free from substances that prevent adhesion (e.g. oils, greases, release agents). Loose particles must be removed and damp edges must be dried. When installing the mixture, care must be taken to ensure that the joint flanks have a uniform surface quality and are well compacted. Road surface installations must be cleaned. Before application, the joint flanks must be pre-treated with a primer – BORNIT^® Hot Compound Primer Spray or BORNIT^® Hot Compound Primer – to ensure good coverage. Allow the primer to dry for approx. 15 minutes and apply the joint tape immediately afterwards. The use of a primer is mandatory to ensure perfect adhesion and joint formation in accordance with TL Fug-StB 24.

Processing

To do this, lay out the BORNIT^® Joint Tape, remove the release paper and cut to length. At the corners of a cut-out, the tape is butt-jointed. Once the primer has dried (approx. 15 minutes), the top of the joint tape is carefully heated with a propane torch until the surface becomes tacky. Place the heated joint tape against the joint face and press it onto the contact surface using a flat tool or by hand. The flexible bond with the hot asphalt to be applied subsequently is achieved by the melting of the joint tape in the joint area. Experience shows that the temperature of the asphalt surface to be laid is sufficient to heat a 10 mm wide tape continuously to +120 °C, thereby creating a secure bond. The joint tape must be installed with an overhang of approx. 5–10 mm (flush with the surface in the case of mastic asphalt) above the road surface and protected from being driven over by site traffic. After the hot mix has been laid, the protruding part of the joint tape is rolled smooth. This creates a rivet head on the surface, which provides additional sealing and a secure closure of the asphalt edge. If the delivered asphalt does not have the required laying temperature, the joint tape cannot melt completely. A secure seal of the joint connection is then not guaranteed!

Cross-section drawing:

Profile tolerances of up to 10% are due to manufacturing processes!

Note: In accordance with the applicable ZTV Fug-StB, the width of the joint tape must not be less than 10 mm. The use of joint tapes with a width of 8 mm must therefore be agreed in the specifications, and the client must be informed of this deviation from the applicable ZTV Fug-StB.

Consumption

1 m per linear meter

Product type

fusible, bituminous joint tape

Base

polymer-bitumen, aggregates, special additives

Softening point acc. to cone/ring

≥ +115 °C

colour(s)

black

Dimensions

30x 8 35x 8 40x 8 30x10 35x10 40x10 50x10 Other sizes on request.

Cleaning

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

storage

store cool and dry material is not sensitive to frost

Shelf life

in originally sealed containers storable for 12 months

Hazard class according to ADR

none

Flash point

> +200,0 °C

Cone penetration

20 - 50 > 0,1mm

Elastic resilience

10 - 30 %

Extensibility and adhesiveness at -10 °C

≥ 10 % / ≤ 1,0 Mpa

Health and fire protection, occupational safety

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

The product can be stored for 12 months. Store cool and dry! Protect boxes against moisture, direct solar irradiation and heat!

Disposal note

Material residues can be disposed of according to AVV-ASN: 170302 (bitumen 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.

UN-number

No dangerous goods in the sense of the transport regulations.

Recommended, personal protective equipment: