Batimix Jointofoam Series

Backer rod foam insulation


Batimix Jointofoam Series products are flexible backer rods made of extruded polyethylene foam. They are available in different shapes and sizes. These products are chemically inert, resistant to oils, gasoline, and solvents. They act as insulators repelling moisture. They improve the uniformity of structures by properly treating joints.

Main Purpose

Batimix Jointofoam Series products are suitable for both expansion and contraction joints. They are available in a variety of shapes and diameters. They provide a means of controlling the depth of applied sealants that fill different types of expansion joints. These bond breakers act as a barrier interface to prevent three-sided adhesion. Their shape allows sealants to develop an hourglass shape.


Batimix Jointofom Series products minimize concrete cracking and damage. They are easy to install dynamic seals, expanding and contracting with the movement of concrete.

They are used in commercial and residential construction projects as barrier seals around windows and between wood framing, concrete walls, and where a slab meets another slab.

They are characterized by the following:

  • They are non-absorbent,non-staining, and therefore suitable for use in water retaining structures
  • Highly resilient
  • Rot-proof
  • Good thermal insulation
  • Natural bond breaker