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BORNIT® Joint Flex

bitumen | road construction | base and binding layers | seam areas | asphalt
BORNIT
Short information
  • solvent-free, thus no impairment of the binding agent in the seam area as with solvent-containing seam adhesives
  • application of the material quantity specified according to ZTV Asphalt-StB 07 in one go (stable up to 4 mm of layer thickness)
  • highly flexible, elastic and good adhesive effect also on slightly moist substrates
  • cost-effective and time-saving machine application
  • with BORNIT® Flexomat 3.1 + Edge Module, application of the material for base and binding layers over the entire surface is possible in one go
Product
Colour
Content
Joint Flex
black
25 ltr. / bucket
sufficient for:
Order-No.
EAN code
euro pallet
approx. 123 m with 4 cm top layer
6900002530
4 017228 003399
18 bucket
Consumption
  • approx. 0.05 ltr. per linear metre per cm of layer thickness
  • According to ZTV Asphalt StB 07, the required material quantity for the seam treatment is at least 50 g per cm of layer thickness per linear metre of seam flank.
Storage note
  • not below +2 °C
  • in originally sealed containers storable for 12 months

Status technical data sheet
22 March 2022

Areas of application
BORNIT® Joint Flex® is used to provide flexible and permanent seams upon application of asphalt mix lanes (“hot on cold” as well as “hot on hot”) as well as for seams between asphalt surfaces and construction materials with irregular surfaces (milling edges). Main area of application is the mechanical pre-treatment of the centre seam flanks when applying hot mixes.
For cut asphalt edges, using BORNIT® Joint Tape is recommended!

Type and properties
BORNIT® Joint Flex® is a polymer-modified, solvent-free, stable bitumen compound, resistant to frost down to -5 °C. Using BORNIT® Joint Flex®, according to ZTV Asphalt StB 07, highly flexible and permanent seam connections are provided for seams in asphalt road construction. The product is manufactured ready-for-use and is usually applied mechanically with the processing equipment BORNIT® Flexomat 3.1 and Joint Module or, for base and binding layers, with the Edge Module, resp. Layer thicknesses up to 4 mm can also be applied at vertical seam flanks without any problem.

Advantages
  • solvent-free, thus no impairment of the binding agent in the seam area as with solvent-containing seam adhesives
  • application of the material quantity specified according to ZTV Asphalt-StB 07 in one go (stable up to 4 mm of layer thickness)
  • highly flexible, elastic and good adhesive effect also on slightly moist substrates
  • cost-effective and time-saving machine application
  • with BORNIT® Flexomat 3.1 + Edge Module, application of the material for base and binding layers over the entire surface is possible in one go

Surface
The substrate must be firm, clean and free from oil, grease and ice. Cutting and milling dust must be removed from the seam flanks. The product also adheres to slightly moist (not wet!) substrates. With the substrate being free from ice, processing is possible down to -5 °C.

Processing
BORNIT® Joint Flex® is particularly designed for machine processing, but can also be applied with other suitable equipment as well as brush or spatula.
The especially developed processing equipment BORNIT® Flexomat 3.1 (basic unit) as well as the associated add-on modules (Joint Module, Edge Module) enable fast and economic material application for all seam areas in asphalt road construction. Thus, seam treatment over the entire surface with approx. 1,000 m per hour is possible without any problem.
Depending on the application speed (advance) and valve position at the equipment, the material layer thickness to be applied can be varied.
Please request the technical documents for the versatile and easy-to-handle equipment system BORNIT® Flexomat 3.1 separately!
Application of the hot asphalt mix should take place immediately following the application of BORNIT® Joint Flex®. Following application, the seam flank should not be exposed to traffic anymore.

Consumption
approx. 0.05 ltr. per linear metre per cm of layer thickness
According to ZTV Asphalt StB 07, the required material quantity for the seam treatment is at least 50 g per cm of layer thickness per linear metre of seam flank.

Layer thickness control
According to ZTV Asphalt StB 07, application of the required material quantity of at least 50 g per cm of layer thickness per linear metre of seam flank in one go (stable up to 4 mm layer thickness)

Product data in brief
Product type
polymer-modified bitumen compound
Base
polymers, bitumen emulsion
Solvent
none
Density at +20 °C
approx. 0.98 g/cm³
PH-value
11.0 - 11.5
Consistency
viscous, thixotropic
Colour(s)
black
Application
Brush, spatula, BORNIT® Flexomat 3.1 and Joint Module or Edge Module, resp.
Processing temperature (ambient and substrate)
not below +2 °C
Cleaning
in the fresh state with water, in the hardened state with BORNIT® MultiClean Spray or BORNIT® MultiClean
Storage
not below +2 °C
Shelf life
in originally sealed containers storable for 12 months
GISCODE
BBP10
VOC category
Actual permissible VOC content
0 g/ltr.
Substances hazardous to health in terms of the ordinance on hazardous materials
none
Hazard class according to ADR
none

Fracture strain (at the free material film)
370 % (test certificate MPA Dresden)

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

Storage
In originally sealed containers storable for 12 months. Always close opened containers. Storable down to -5 °C.

Disposal note
Only recycle completely empty containers. Material residues can be disposed of according to AVV-ASN: 080410 (adhesive and sealing compound residues, except for those falling under 080409).

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.
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