Arbo EPDM System


Following the introduction of Document L, it has become a requirement to provide a robust seal to the internal interfaces between different façade components of a construction. The purpose of this seal is to reduce heat and air leakage from a building and to help prevent interstitial condensation. To aid rapid construction techniques, contractors demand that a building is made substantially waterproof as early as possible during construction. The use of the Arbo EPDM system plays an important role in achieving this aim. Increasing standards demanded by building insurance companies on new constructions and impending legislation means that window seals must incorporate additional robust seals and use of an external sealant only will not be permitted as a defence against water ingress. The Arbo Membrane system is designed to offer a fully compatible solution to this detail that not only prevents water and air leakage but uses sealants and adhesives which are safe and solvent free. The system will not affect sensitive substrates such as natural stone. It does not affect solvent sensitive paint finishes and is compatible with other Arbo sealants which may come into contact with the EPDM system.

General information


J40/297 Waterproofing/ Damp proofing membrane

Specification data

Product Reference

Arbo EPDM System


Arbo Membrane Adhesive

Arbo SA

Product Options

Arbo Membrane EPDM:

  • Thickness: 0.75 mm.
  • Tensile Strength (Mpa): ≥ 9.
  • Elongation: ≥ 400.
  • Modulus 300% (Mpa): ≥ 6.
  • Hardness (Shore A): 50-70.
  • Tear strength (kN/m): ≥ 35.
  • Cold folding - 55°C: No cracks.
  • Water vapour permeability μ: 50 000.
  • Life expectancy: 50 years.


- Arbo Membrane Adhesive:

A unique single pack elastomeric thixotropic adhesive material based upon modified polymer technology. Formulated to exhibit high initial grab without the use of solvents to a wide variety of substrates. Many applications will not require the use of a primer although Arbo 2650 Primer is recommended for porous surfaces such as brick, stone, blocks and some types of concrete.

Compatible with PPC aluminium, PVC-U and other finishes. Excellent adhesion to most mineral boards without the requirement for a primer. Excellent adhesion to both Arbo Membrane EPDM and other EPDM and Butyl membranes (for further information please contact Adshead Ratcliffe Technical Services Department). Can be used without the use of a terminator strip in most applications.

- Arbo SA:

A unique single pack elastomeric adhesive sealant material based upon silicone polymer technology. Formulated to exhibit good initial grab without the use of solvents to a wide variety of substrates.