Open Cell Backer Rod is ideal for non-uniform joint sizes, and is
commonly used in expansion and contraction joints, window glazing,
curtain wall construction partitions, precast assemblies and copings,
parking decks, bridge construction, and more.
Open Cell Backer Rod, an inert material, is compatible physically and
chemically with virtually all known hot-pour and cold applied sealants
including silicone and asphalt.