Description

The Bond-It Backer Rod 15mm x 500m Coil is a closed-cell polyethylene foam backing rod designed to support correct joint design and enhance sealant performance. Supplied in a high-yield 500-metre coil, it is ideal for professional and large-scale applications where efficiency and consistency are key.

Installed behind sealant joints, the backer rod controls sealant depth and prevents three-sided adhesion, allowing the sealant to move correctly and reducing stress within the joint. The 15mm diameter makes it suitable for medium-width joints commonly found in construction, glazing, and general sealing applications.

Typical Applications

• Expansion and movement joints

• Glazing and façade sealing

• Construction and building joints

• Joint preparation for silicone, PU, and hybrid sealants

• Large-scale sealing projects

Why Use a Backer Rod?

Using a backer rod:

• Reduces sealant usage and waste

• Ensures correct depth-to-width ratio

• Improves sealant durability and lifespan

• Helps prevent cracking and adhesion failure

Backer rod is an essential component of professional joint design.

Benefits

How to Apply