Backer Rod – Polyethylene Foam Packing

ITP Soft Type Backer Rod is a soft, pliable and non-gassing backup material that is inserted into a joint to control sealant depth. This creates a backstop to facilitate proper sealant tooling, yielding a quality bond breaker between the backup material and the sealant. Questions? Contact us

Armacell (formerly ITP Standard) is an extruded round, closed cell, low density polyethylene (PE) foam material with a skin-like outer texture. Standard backer rod is non-absorbent, flexible and compressible allowing for easy installation in joints as a backup material for sealants. It’s available in spools in ¼” to 1 ¼” diameters or 6’ lengths for sizes over 1 ½” diameter. Standard is recommended for glazing installations, window and door applications, expansion joints, log construction, pavement joints or repairs and precast concrete joints and copings. It’s compatible with most cold-applied sealants.