Sika Backer Rod is used to partially fill deep expansion joints and cracks before application of your sealant. It helps prevent 3-sided adhesion while allowing you to control the depth of the sealant. Available in 3/4 in., 20 ft. length.
- Easy to apply
- Highly flexible and compressible
- Will not absorb water
- Good temperature resistance
- Partially fills deep cracks before sealant application
- Safe for the environment