SAKRETE Backer Rod

SAKRETE Backer Rod is an extruded, round-closed cell, low density, polyethylene, foam backer rod with a skin-like outer texture. This product is highly flexible and compressible for easy installations. It is a non-absorptive back-up material that can be inserted into a joint to control sealant depth and to create a temporary seal.

  • Allows proper sealant tooling
  • Allows proper sealant wetting of joint surfaces
  • Will yield a proper bond breaker between the backer rod and sealant