Arbokol 2150


A two part polysulphide sealant suitable for structural floor joints. It is not recommended for joints subject to large and frequent movement or for use with potable water.

The sealant is resistant to most alkalis and dilute acids, petrol, diesel, jet fuel and many solvents and vegetable oils. Arbokol 2150 burns, but will not readily ignite, so does not constitute a fire hazard.It can be painted, but excessive joint movement may cause the paint to crack and could induce tears in the sealant.

Correctly applied, the sealant should not require maintenance, and has an anticipated life in excess of 20 years. When used in trafficked areas, or in special environments such as swimming pools, the life may be reduced.

General information

Uniclass 2015

Pr_30_31_76_62 Polysulfide construction joint sealantsPrimary


E40/530 Sealant

J21/770 Installing movement joints

M40/75 Sealant movement joints

M40/805 Sealant movement joints with metal edgings

M40/815 Sealant movement joints

M41/455 Sealant movement joints with metal edgings

Specification data - Polysulfide construction joint sealants

Product Reference

Arbokol 2150






Joint backing: Closed cell foam polyethylene rod

Joint backing: Fibre-board with bond breaker tape

Standard product features


ISO 11600 12.5P F and ISO 11600 25HM F (non-biodegradable version)

UV resistance:


Application temperature:

+5 °C to +50 °C.

Curing time:

14 days at 20°C.

Joint dimensions:

– Width:

  • Minimum 6 mm; maximum 25 mm (single application), 50 mm (multiple applications).

– Depth:

  • Porous substrates: Minimum 10 mm (12 mm for floors); maximum 25 mm.
  • Non-porous substrates: Minimum 6 mm (12 mm for floors); maximum 25 mm.


Primer for stainless steel: Arbo Primer 7781. Primers are available to suit other substrates - refer to technical literature for details. A primer is not required for mill finished aluminium, anodized aluminium or galvanized steel.

Joint backing:

A combined joint filler/bond breaker such as closed cell foam polyethylene rod should always be used to ensure that the sealant only adheres to the joint faces and not the back. Where the joint has been packed out with fibre-board, bond breaker tape should be used.

Health and safety:

Some components are labelled as toxic. Use of this product should be recorded in the project Health and Safety Plan.

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