Open Or Closed Cell Backer Rod

Nomaco ocfoam open cell backer rod round flexible continuous lengths of open cell polyurethane foam backer rod for use as a backing material for elastomeric and other cold applied sealants.

Open or closed cell backer rod.

Bond breaker tape is used in joints that are too shallow to install a backer rod. Sika 0 75 in x 20 ft backer rod. The sealant also has the benefits of a 2 sided cure. Select a denver foam size large enough to absorb the pressure during sealant tooling.

Closed cell backer rod sikaflex 10 1 oz. Open cell backer rods may not be ideal for sealants that are susceptible to bubbling of air escaping the backer rod material. Closed cell when backer rod compared to the closed cell the open cell is much more flexible. For joints susceptible to the presence of moisture prior to joint sealing such as horizontal joints.

Since the backer rod has a closed cell exterior it can be installed in horizontal or flat work because it won t wick moisture through itself. And abuse of these rods does not cause out gassing. Fillpro soft type is a unique bi cellular construction that offers high compressibility but has a closed cell outer skin to resist moisture. Open cell rods are more accepted since they essentially breathe.

Gray caulk backer rod for gaps and joints. However closed cell rigidity is merely the result of the gases trapped inside the material. Backer rod is available in two basic forms. Standard backer rod suitable for glazing installations window door applications expansion joints curtain wall joints partitions log construction.

Open cell backer rods. Product data sheet. Broadway denver co 80216 p. For pricing and availability.

The hybrid style backer rod is easy to install with the internal open cell structure it can compress easily. Crack flex concrete sealant m d building products 5 8 in. The open cell is dependent on its physical and chemical make up in order to attain its rigidity.