Butyl sealing tape with aluminium lamination
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Excellent resistance to UV, weathering and water
High adhesion to absorbent and non-absorbent surfaces
Can be used on all the surfaces in the construction sector, e.g. steel, aluminium, glass, plastic, wood, concrete, masonry, bitumen etc.
Butyl tapes are self-fusing
The tape is fully functional immediately after application and complies with all required properties.
Impermeable to vapour diffusion
The butyl tape enables water-tight sealing and prevents moisture from penetrating the building.
Complies with VOC requirements according to:
The usage instructions are recommendations based on the tests we have conducted and on our experience; carry out your own tests before each application. Due to the large number of applications and storage and processing conditions, we do not assume any liability for a specific application result. Insofar as our free customer service provides technical information or acts as an advisory service, no responsibility is assumed by this service except where the advice or information given was part of our specified, contractually agreed service or the advisor was acting deliberately. We guarantee the consistent quality of our products. We reserve the right to make technical changes and further develop products. Please refer to the technical data sheet.
Catalogue page as PDF 1
For covering seals of construction and connection joints in areas of industry and construction, concrete and concrete finished parts construction. Typical applications include sealing dome lights, window frames, slanted-roof glass structures (with press-on profile only), greenhouses, conservatories and other butt joints made from glass, plastic and metal. And sealing roof passages, rain gutter connections or connections between projecting roof and masonry.
The surfaces to be sealed must be dry, capable of bearing load and free from grease and dust. The application temperature should not be below +10°C. Absorbent and porous surfaces must be pre-treated with Würth butyl/bitumen primer (art. no. 0892875).
To obtain good initial adhesion to the surface, the tape should be pressed onto the surface and smoothed using a press-on roller (art. no. 0693011756). Folds and creases should be avoided.
Butyl has a "cold flow" tendency (flow characteristic of the tape). Therefore, the tape should always be fitted with a press-on profile to prevent the seal from slipping as a result of, for example, the weight of snow or backed-up water. However, using excessive contact pressure on the profile will cause the sealing compound to be "pushed out". Also, never compress the butyl tape to the zero point (use the supplied disc as a spacer)!
The adhesive surface of the sealing tape must be at least 1/3 (per contact surface) of the tape width when gluing over joints. Overhead adhesion tasks are not permitted without additional mechanical fixings. When sealing glass retainer profiles, the rubber profile must not lie on the sealing tape. The width of the butyl tape must be selected such that the tape is located between the rubber profiles.
Butyl natural rubber
With aluminium lamination
Aluminium composite foil
Thickness of butyl compound
Backing material thickness
Building material class/conditions
B2 / in accordance with DIN 4102
Min./max. processing temperature
10 to 30 °C
Min./max. temperature resistance
-40 to 90 °C
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!