Foam Backer Rod For Gaps And Concrete Joints Half Inch Wide Rope Gap Filler For Crack Sealing Water And Temperature Resistant Flexible And Easy Install Caulk Saver Backing Rod For Masonry Thirty Three Feet Long

Foam Backer Rod for Concrete Joints, 1/2 in, 33 ft
✔️ 1/2 in (12.7 mm) diameter, 33 ft (10.06 m) long, water & heat resistant

Foam backer rod is a flexible filler used to seal cracks and joints in concrete, asphalt, and masonry. It provides a stable base for caulk or sealant and helps create a proper, durable seal. Commonly used in driveways, sidewalks, and wall joints to prepare joints for sealant.

✅ Size and length: 1/2 in (12.7 mm) diameter, 33 ft (10.06 m) long
✅ Material: high-quality foam, water- and temperature-resistant
✅ Install: easy to cut and press into gaps; compressible for tight seals
✅ Applications: ideal for expansion joints in driveways, sidewalks, masonry joints
✅ Pack: single roll, ready for daily use

💡 What is a backer rod used for in concrete crack sealing projects? A backer rod provides a backing that supports sealant and helps control depth for a strong, neat joint. - It controls depth and sealant consumption in concrete crack sealing - It ensures proper adhesion and finish for caulk in joints - It accommodates varying gap widths and common joint sizes