Description
Polyurethane Backer Rods for Sealant Joint Preparation
PU Backer Rods are flexible, open-cell polyurethane foam rods designed for use as non-adhesive backing material in construction and expansion joints. They help control sealant depth, create the correct joint profile and prevent three-sided adhesion, allowing sealants to perform as intended while accommodating movement.
Suitable for use with a wide range of sealant types, including silicone, polyurethane, polysulphide, acrylic and MS polymer sealants, PU Backer Rods improve joint design and help reduce unnecessary sealant consumption.
Supplied in convenient 1 metre lengths and available in various diameters, they are widely used in construction, glazing, flooring and general sealing applications.
Key Features & Benefits
- Open-cell polyurethane foam backer rod
- Controls sealant joint depth
- Helps create correct joint profile
- Prevents three-sided adhesion
- Improves sealant performance
- Easy to install
- Highly flexible
- Compatible with most sealant types
- Resistant to many chemicals
- Suitable for movement joints
- Can be used as a draught strip
- Supplied in 1 metre lengths
- Available in multiple diameters
- Professional joint preparation solution
Suitable Applications
- Construction joints
- Expansion joints
- Movement joints
- Glazing joints
- Window frame joints
- Door frame joints
- Flooring joints
- Concrete joints
- Sealant joint preparation
- Draught proofing applications
- General building work
Compatible Sealants
- Silicone sealants
- Polyurethane sealants
- Polysulphide sealants
- Acrylic sealants
- MS polymer sealants
- Hybrid polymer sealants
Technical Information
- Material: Polyurethane foam
- Cell Structure: Open-cell
- Profile: Round
- Colour: Grey
- Length: 1 metre
- Available Diameters: Multiple sizes
- Chemical Resistance: Good resistance to many chemicals
- Application: Non-adhesive joint backing
Frequently Asked Questions
What are PU Backer Rods used for?
They are used as backing material in sealant joints to control sealant depth and prevent three-sided adhesion.
Why is preventing three-sided adhesion important?
Preventing sealant from bonding to the bottom of the joint allows it to move correctly and helps improve long-term joint performance.
Which sealants can be used with PU Backer Rods?
They are suitable for use with silicone, polyurethane, polysulphide, acrylic and MS polymer sealants.
How do I choose the correct size?
The backer rod diameter should be approximately 50% larger than the width of the joint being filled.
Can PU Backer Rods be used for draught proofing?
Yes. They can also be used as a draught strip in suitable applications.
TDS
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security
You may also be interested in
Recently viewed
What Our Customers Say