Closed Cell Backer Rod – High-Performance Joint Filler

The Closed Cell Backer Rod is a flexible, compressible foam rod made from closed-cell polyolefin with a tough outer skin. It’s designed to provide a reliable backing for cold-applied sealants in various construction and building applications, including expansion and control joints.

Applications:

• Expansion and construction joints
• Precast concrete panels
• Glazing systems and curtain walls 
• Sealing gaps in walls, floors, and façades

Key Features:

• Closed-cell structure prevents moisture penetration
• Maintains shape with excellent dimensional stability
• Resistant to most chemicals and environmental factors
• Non-toxic and odourless for safe use in all environments
• Will not bond to sealants, ensuring correct joint performance
• Rot-proof and mould-resistant
• Outstanding durability and aging resistance

Available Sizes:

• 6mm x 250m
• 10mm x 250m
• 15mm x 50m
• 20mm x 50m

Ideal for ensuring proper sealant depth and preventing three-sided adhesion, the Closed Cell Backer Rod is an essential component for professional sealing and joint applications.