CRL Black 5/8" x 1400' Open Cell Backer Rod Finish:Black The blade width is 1-5/8"

The blade width is 1-5/8" (41 mm)

GE®: SilPruf® 2000

and Aluminum Sash

Also not recommended for stained/leaded glass projects

and it applies with conventional caulking guns

CRL Black 5/8" x 1400' Open Cell Backer Rod Finish:Black The blade width is 1-5/8"Open Cell, No Skin, Non Gassing Rod is Compatible with All Cold Applied Sealants Controls Depth of Sealant and Acts as a Bond Breaker Soft, Black Color Rod Compresses Easily CRL Open Cell Backer Rod is soft, round, and easily compressible open cell polyurethane foam. Open Cell Backer Rod is not adversely affected by dynamic joint movement, and its inherent flexibility applies itself to joint variations very easily. It is ideal for use in situations