EPE Backer Rod (Backing Rod)

Backer rods are usually round, flexible lengths of foam that are used as a “backing” in joints or cracks to help control the amount of sealant/caulking used and create a back stop. Many sizes/diameters are available for optimal fitting to the size of the joint being sealed.
Backer rods are usually round, flexible lengths of foam that are used as a “backing” in joints or cracks to help control the amount of sealant.
Backer Rod’s four main benefits:

• Increase elasticity in the joint sealant.
• Reduce caulk consumption by controlling sealant depth— this prevents excessive use of caulking or sealant.
• Force adhesive into contact with the sides of the joint creating an hour-glass shape for a superior bond.