Caulk Backer Rod, 20-Ft. x 5/8-In.

Description

5/8″ x 20′, Caulk Backer Rod, For Gaps & Joints, Non-Absorbant, Closed Cell Polyethylene, Pre-Caulking Material, Use Before Caulking To Fill Gaps & Openings Larger Than 1/2″ x 1/2″, Prevents 3 Point Bonding.