CF12081 : Climaloc Backer Rod, 3/8" x 30'

Climaloc Backer Rod, 3/8" x 30'. Crack & Hole Pre-Silicone Space Filler. Simply fill the cracks before using caulk or silicone. Saves time, money and energy!

Use the backer rod before you put caulking around your bathtub, shower, sink or kitchen counters. Perfect way to fill gaps, pre-seal the joints of retaining walls, window and door frames, ventilation ducts and plumbing pipes. Very useful to repair cement, patio and foundation cracks.

Avoid contact with a heat source such as a furnace or other heating unit.

Use a backer rod at least 1/8" wider than the opening to be filled.