Joint Sealants

Joint Fillers

Monneli Jointex BT

Bitumen Impregnated Fibreboard

JOINTEX BT serves best as a quality structural expansion and separation joints in concrete pavements and floors, roads, ramps and runways, pedestrian areas, concrete retaining wall and bridges, and concrete basement structures and subways, etc.
JOINTEX BT can also be used as a safeguard waterproofing membrane against any future physical or mechanical damages.
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Technical Information
Product Description

JOINTEX BT is manufactured from impregnated wood fibres that serve as an excellent compressible joint filler and protection board.

JOINTEX BT is used to form and fill expansion joints in in-site and pre-cast concrete construction industry.

  • Easy to handle, cut and tamp
  • Resilient
  • Does not extrude even under compression
  • High recovery
  • Low distortion
  • Withstands adverse weather conditions
Technical Properties






Viscosity at 25°C

40 cps

Density at 25°C

0.9 kg/L

Drying time at 25°C

10-15 minutes

Application Temperature

+5°C - +35°C

All values are subject to 5-10 % tolerance

Application Information
Instructions for use

Surface Preparation

All surfaces where the JOINTEX BT is to be applied must be dry, smooth, clean, free from dust, laitance or loose materials. When otherwise necessary, it is highly recommended to use compressed air or a wire brush in order to remove further dirts, oil stains and other inconsistencies. Make use of a torch to ensure that the concrete is absolutely damp-free.


JOINTEX BT when installed in in-situ concrete to form an expansion joint, the product shall be placed against the shuttering on the concreting side just before the pour begins. In cases of suspended slabs, use copper nails in order to prevent displacement in joints.
JOINTEX BT can be bonded to the existing slab or previous pour by the use of a suitable COLMEF product adhesive. However, proper care should be taken into consideration not to pollute surfaces of the sealing slot with adhesive.

Joint Sealing

JOINTEX BT can be cut consequently according to the required depth of the slab by the use of a power brush machine. In order to fill the joint completely, thus providing a superior continuous support for the joint sealant, tamp down thoroughly the product into the required area making sure to seal the gap entirely.

Additional Information
Health & Safety

There are no health hazards in connection with JOINTEX BT in normal use.

Important note

The information in this Technical Data Sheet is based on Colmef Monneli’s experience. Colmef Monneli does not accept any liability arising from the use of its products as it has no direct or continuous control over where or how its products are applied. All Colmef Monneli’s Data Sheets are updated on regular basis. It is the user’s responsibility to obtain the latest version.

additional materials
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Technical Properties Sheet
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