Foam Backing Rod is manufactured from a closed cell low density polyethylene foam is a great way to control sealant depth in joints, create a backstop to allow proper sealant tooling, to allow proper sealant wetting of the joint surfaces, insulate underside of sealant and yield proper bond breaker between the backup material and sealant. Also used in the construction industry as a non-absorbent compressible backing rod behind expansion joints. Commonly found in roads, bridges, and concrete to steel joints. 15mm Closed cell Compatible with all types of sealants Round profile enables sealant to shape itself to suit surrounding environment Minimises the amount of sealant required Low moisture absorption
