FILL-RITE 4 INCH Backer Rod Closed Cell (9 units of 4" x 72") 54 Feet - Grey
Box of 9 units of 4" x 72" grey foam solid. Total of 54 feet.
Closed Cell Polyethylene Foam
Meets SATM C1330 Type C
Made without CFCs or HCFCs
Backer Rod is a closed cell, resilient, polyethylene backer rod used as a backup material for construction joints and applications that require sealants. It performs as a depth control for most known cold applied sealants. Sealants will not adhere to it; no bond breaker is required.
COMPOSITION AND MATERIALS
Backer Rod is a round, black, resilient, extruded closed cell polyethylene backer rod with a water resistant outer skin. It is compatible with most known cold applied sealants such as urethane, silicone, acrylic, butyl, polysulfides, latex, and chinking sealants.
Backer Rod is chemically inert and will resist gasoline, oil, and most solvents. Product will not stain or adhere to sealants.
SPECIFIC USES INCLUDE
Log home chinking
Window and door applications
Backer Rod should be installed with a roller or blunt, flat-sided tool. Please follow sealant manufacturer specifications for recommended sealant width and depth ratio. For best results, do not puncture, fold or overly stretch the product. The product is made with a water-resistant outer skin, therefore where moisture resistance is important, care should be taken not to puncture this outer surface skin.
Density: 1.3-1.9 lbs/ft3
Water Absorption: ?less than 0.5% by volume
< 0.03 grams/cc
Temperature range: -90F to 190F
Compression Recovery: > 90%
Compression Deflection: 5 psi
Tensile Strength: > 29 psi
Meets standards ASTM D5249 type 3 and ASTM C1330 type C