8mm Polyurethane Foam Backer Rod For Caulking Elastic Sealants

Backer Rod  is used as ground when sealing with elastic sealants to ensure correct dimensioning of the sealant and to ensure that the sealant does not stick to the bottom of the joint. Hereby, improved elasticity as well as prolonged life of the joint is achived.

Backer Rod  consist of round profiles having closed cells, making the product usable for both inside and outside joints.

Used in home construction, sidewalks and masonry work, backer rod as it is also known, increases the performance and longevity of every application it is used in and saves money as well.

Backer Rod is as important to a successfully installed joint as the sealant material itself.

They provide three critical functions:

1) Control the depth of sealant application

2) Prevent three-sided adhesion

3) Form the hourglass shape necessary for proper joint design.

Advantage

Easy to apply
Highly flexible and compressible
Will not absorb water
Good temperature resistance
Partially fills deep cracks before sealant application