Backer Rod Soft Type Backer Rod 2" (228 per case)

Round poly foam joint filler and backing for sealants. Provides controlled depth for sealants. Compresses easily for accommodating joints of varying widths. Does not stick to sealants. Exceeds ASTM standards for bond breaker materials. Consists of both open and closed cells on the inside with a skin-like outer texture. Non-stick closed cell skin. High moisture resistance. Compatible with all known types of sealants including butyl, polyurethane, silicones, tri-polymer, polysulfide, acrylic, etc.