Nomaco SOF® ROD Bi-Cellular Polyethylene Backer Rod

SOF® Rod is a soft bi-cellular polyethylene foam backer rod used in building envelope and concrete construction. It is comprised of both open and closed cells that will not out-gas when skin is ruptured and prevents sealant bubbling and failure. DESCRIPTIONFORM: Round Foam Rod.TYPE: B - Per ASTM C 1330. Cylindrical, flexible sealant backings composed predominantly of bi-cellular material. Also reference ASTM C 717 for use as gasket or sealing material.TYPE: 3 -Per ASTM D 5249. Round rods of various diameters for use with non-sag and self leveling cold-applied joint sealants.TEMPERATURE LIMITS: -45 ̊F to +160 ̊F.       PERFORMANCE SOF Rod has an outer skin, resilient interior cells and acts as a barrier to the flow of sealant. It Features limits the amount and depth of sealant applied into a joint and provides a form to assist cold-applied sealants in developing the proper shape factor to prolong the sealant service life. SOF Rod acts as a bond breaker to allow joint movement without un