Densoband™ 45mm x 8mm x 12m (Box of 3) is a hot-applied, preformed sealing strip wound in reel form on wider-width disposable interleaving.
It uses a polymer-modified bitumen strip to seal vertical joints in road and pavement construction and maintenance, helping prevent the ingress of water. For use on asphalt-to-asphalt, asphalt-to-concrete and asphalt-to-steel joints, it helps prevent further deterioration by sealing out water, chemical pollutants, weed seeds and other contaminants. In addition, Densoband™ provides a uniform flexible seal across the joint face, making it suitable for base and wearing course joints where movement from traffic load and thermal changes may occur.
Use with Densoband Primer.
For more information, also visit the Denso website.
Densoband™ 45mm x 8mm Technical Information
Composition
Densoband uses a polymer-modified bitumen compound in strip form containing filler, a flow-control additive and a root deterrent.
Uses
Densoband helps seal joints between asphalt-to-asphalt, concrete and road castings in road construction and bridge expansion joints. In addition, it suits airport runway joints and light railway or tram construction where a flexible seal is required between the track and the surrounding asphalt.
Densoband forms a flexible watertight seal that accommodates slight movement from cyclic loads and thermal changes, therefore helping prevent cracking and subsequent joint erosion from weathering.
Service Temperature: -20°C to +80°C
Characteristics
Densoband has the following characteristics:
- has excellent flexibility to help prevent cracking,
- has excellent adhesion to primed surfaces,
- has excellent resistance to acids, alkalis and salts, and
- provides a watertight seal.
Application
Because site conditions can vary, see Instructions for Use for details. Apply by machine or manually.
Recommended primer:
Densoband Primer. Application Temperature: +5°C to +50°C.
Availability
Densoband comes in the following options:
- 6.5 m length, 45 mm – 55 mm width and 15 mm thickness, or
- 12 m length, 45 mm – 55 mm width and 8 mm thickness.
Storage conditions
Where possible, store in a cool and dry place in the original packaging.
Waste material
Please avoid or minimise waste wherever possible. Also, do not discard waste material, including packaging, in the surrounding environment. Follow all relevant legislation for disposal.




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