Backer Rod
Sashco 3/4 In. x 50 Ft. Gray Backer Rod
Sashco Pre-Caulking Backer Rod. Makes professional joints that last.
- Help fill in and insulate large caulk joints and allows the caulking to absorb more movement.
- Caulking adheres to the sides of the joint, but not to the filler rope, which allows the caulking to stretch and compress without tearing or pulling away thus extending the caulk's life and effectiveness.
- Made of closed-cell polyfoam.
- Minimum R-value of 2.5/inch.
- Color: Gray.
- 3/4 In. x 50 Ft.
Sashco 5/8 In. x 50 Ft. Gray Backer Rod
Sashco Pre-Caulking Backer Rod. Makes professional joints that last.
- Help fill in and insulate large caulk joints and allows the caulking to absorb more movement.
- Caulking adheres to the sides of the joint, but not to the filler rope, which allows the caulking to stretch and compress without tearing or pulling away thus extending the caulk's life and effectiveness.
- Made of closed-cell polyfoam.
- Minimum R-value of 2.5/inch.
- Color: Gray.
- 5/8 In. x 50 Ft.