Open Or Closed Cell Backer Rod

Open cell backer rods.

Open or closed cell backer rod.

Broadway denver co 80216 p. Open cell rods are more accepted since they essentially breathe. See gibb j f hidden but essential. The open cell construction eliminates the out gassing and cold flow problem associated with closed cell polyethylene backer rods.

Product data sheet. Bond breaker tape is used in joints that are too shallow to install a backer rod. For pricing and availability. Sika 0 75 in x 20 ft backer rod.

Open cell backer rods may not be ideal for sealants that are susceptible to bubbling of air escaping the backer rod material. Backer rod is available in two basic forms. Meets all of the requirements of the 1990. However closed cell rigidity is merely the result of the gases trapped inside the material.

For joints susceptible to the presence of moisture prior to joint sealing such as horizontal joints. Fillpro soft type is a unique bi cellular construction that offers high compressibility but has a closed cell outer skin to resist moisture. Gray caulk backer rod for gaps and joints. The sealant also has the benefits of a 2 sided cure.

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. Closed cell when backer rod compared to the closed cell the open cell is much more flexible. Closed cell backer rod sikaflex 10 1 oz. Standard backer rod suitable for glazing installations window door applications expansion joints curtain wall joints partitions log construction.

The hybrid style backer rod is easy to install with the internal open cell structure it can compress easily. 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. Crack flex concrete sealant m d building products 5 8 in.