Caulk Backer Rod 1-2in X 20ft
Non-absorbent, closed-cell polyethylene pre-caulking material helps repel moisture. Use before caulking to fill gaps and openings larger than 1/2" x 1/2". Prevents 3-point bonding.
- CAULK BACKER ROD
- Size In x Ft=1/2 x 20
- FOR GAPS & JOINTS
