📦 Full Description:

The Backing Rod is a closed-cell, flexible polyethylene foam rod used in sealing and expansion joint applications. It prevents three-sided adhesion, improves the shape factor of the sealant, and ensures the correct depth is maintained during sealant application. Ideal for use in both vertical and horizontal joints, this rod is compatible with most sealant types and installation conditions.

⭐ Key Features:

• High-quality closed-cell polyethylene foam.

• Easy to compress and insert.

• Controls joint depth for proper sealant application.

• Prevents three-sided adhesion, allowing optimal sealant performance.

• Compatible with silicone, polyurethane, polysulfide, and other sealants.

• Durable and flexible—resists rot and moisture.

• Lightweight and non-absorbent.

📊 Technical Specifications:

• Material: Closed-cell polyethylene foam

• Density: Approx. 30–35 kg/m³

• Temperature Resistance: -40°C to +90°C

• Water Absorption: Negligible (closed-cell structure)

• Compression Recovery: >90%

• Resistance: Rot-proof and chemically inert

• Colour: Typically grey (may vary by brand)

🛠️ Ideal For:

• Expansion and movement joints in concrete and masonry

• Curtain wall joints

• Glazing systems

• Road and bridge joints

• Window and door perimeter joints

• Vertical and horizontal joints

🧪 Instructions for Use:

1. Select the correct diameter—typically 25% larger than the joint width.

2. Insert rod into the joint at the desired depth using a blunt tool or roller.

3. Avoid puncturing the rod during installation.

4. Apply sealant over the rod as per manufacturer’s instructions.