3/4 Inch X 20 Ft Backer Rod

Easily install a temporary seal in wide joints and cracks! Use SAKRETE Backer Rod, a highly-flexible and compressible, non-absorptive, rope-like, back-up material. Packaged in 20 foot lengths. Go with SAKRETE, The Pros Choice since 1936.Allows for control of sealant depth in concrete repair projectsUse for horizontal and vertical glazing installationsUse for proper sealant tooling and placement of joint surfacesSeal windows and doors, expansion joints, curtain wall joints, logs (behind chinking mortar), pavement joints, or pre-cast units and copingsYields proper bond breaker between backer rod and sealantReady to use