3/4" Backer Rod

Denver Foam Closed Cell Backer Rod, Series: IEA, 0.75 in Rod Diameter, 0.625 in Joint Width, LDPE Foam, Gray, -90 TO 210 deg F, 50 psi Tensile Strength, 0.02 Water Absorption, 1.5 - 2 lb/cu-ft Density, Expansion Joints. Backing for elastomeric and other applied caulking sealants. Use with cold-applied sealants. Denver foam is chemically inert and will resist oil, gasoline and most solvents. Non-exuding Easy to use. For use in expansion or construction joints in concrete and precast concrete walls, floors. Lightweight. Material is odorless and will not stain. Water resistant. Both hot and cold installations can be installed with Denver foam backer rod. Inert. Clean product. Recyclable. Denver foam backer rod.