Roof Rehabilitation


BORNIT® Trapezium Tape

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BORNIT® Trapezium Tape
Polymer tape with trapeze-shaped cross-section for rapid and reliable construction of joints and end seals at the transitions from horizontal to vertical construction elements under the roof, weldable with hot air or open flame, ideal for the installation of roof and welded sheets, flexible and stable when exposed to flame. Prime with BORNIT® Bitumen Primer or BORNIT® Basement Primer.

Colour: black
4 017228 000572 6900002710 25 m 24 boxes
BORNIT®-Trapezband - 25m

BORNIT®-Trapezband - Querschnitt

detaillierte Informationen

Areas of application
BORNIT® Trapezium Tape is suitable for sealing edge joints and unevenness between precast concrete elements, shaft rings of supply and maintenance shafts etc. and the simple formation of fillet welds in the transition area between components perpendicular to one another (e.g. between the floor slab and ascending wall before welding - and cold self-adhesive sheets as well as PMBC).

Type and properties
BORNIT® Trapezium Tape is a fusible and highly flexible elastomer-bitumen tape for secure and easy joint sealing and fillet formation in building construction and civil engineering.

Product advantages
•    faster work progress thanks to closed drying times
•    easy to process

The surface must be firm, clean, dry and free of loose parts or separating substances. To achieve good adhesion and secure fusion of the tape with the substrate, a primer with BORNIT®-Bitumen Primer or BORNIT®-Basement Primer is recommended. This is usually also to be used for the subsequent surface sealing and is painted or sprayed to give a good coverage.

Lay out BORNIT® Trapezium Tape and cut to length. In the corner area, the tape can be cut to mitre, as required. Fuse the attachment surfaces of the tape with a propane gas flame and press on immediately.
In case of a mitre cut in the corner area, pay attention to good adhesion of the abutting edges!

Product data in brief

Type Bituminous, polymer-modified sealing tape
Basic Bitumen, additives, rubber
Colour Black
Density at 20 °C acc. to DIN 52004 1.10 g/cm³
Consistency Solid
Softening point acc. to cone/ring principle acc. to DIN 52011: kneaded in in the original state  Approx. +100 °C
Storage Not sensitive to frost! Keep cardboard packaging dry!
Shelf life In originally sealed containers 12 months


BORNIT®-Trapezband - Querschnitt
Angles: 45°; 135°, 45°, 135°

System products
BORNIT® Bitumen Primer
BORNIT® Grundbit
BORNIT® Basement Primer

The product can be stored for 12 months. Protect the boxes from moisture and direct solar irradiation or heat, resp.!

Health and fire protection, occupational safety
For information on handling, safety and ecology, please refer to the current safety datasheet.

Forms of delivery
BORNIT® Trapezium Tape is delivered rolled-up, packaged in boxes. One box contains 4 rolls with 6.25 m each.
BORNIT® Trapezium Tape = 25 m / box    ………………….    24 boxes per pallet
Profile tolerances of up to 10% are due to production engineering!

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

This datasheet replaces any 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 changes in the information contained in this datasheet anytime.

Art bituminöses, polymermodifiziertes Dichtband
Basis Bitumen, Zuschlagstoffe, Kautschuk
Farbe Schwarz
Dichte bei +20 °C nach DIN 52 004 1,10 g/cm³
Konsistenz Fest
Erweichungspunkt nach RuK nach DIN 52 011: im Originalzustand eingeknetet    ca. +100 °C
Lagerung Frostunempfindlich! Kartonagen vor Nässe schütze
Lagerfähigkeit In original verschlossenen Gebinden 12 Monate


Protect from direct sunlight or high temperature
Stock Note


Necessary information – particularly for the use and the use of our products – please refer our brochures. We are at your personal disposal.