Closed Cell Backer Rod

Closed cell backer rod is a round, flexible, closed cell polyethylene foam with an exterior "skin" used as a backing and thickness control device for elastomeric and other cold-applied sealants.

Backer Rod is an integral component of sealant joints, it provides three main functions that allow the sealant joint to perform.

*Acts as a bond breaker, preventing what is commonly referred to as three sided adhesion.
*The backer rod supports tooling. the sealant is pushed to the bond line with a spatula, ensuring wet-out of the sealant to the substrate.
*Promotes an hour glass shape, this maximizes the bond area but keeps the depth of sealant consistent in the middle allowing for movement.

View as Grid List

10 Items

Set Descending Direction
per page