Closed Cell Backing Rod - Round
Adheseal Closed Cell Backing Rod is a durable, flexible foam support designed to improve sealant joint performance. It offers excellent compression recovery, minimal water absorption, and prevents 3-sided sealant adhesion.
- $51.32
- $51.32
- Unit price
- per
Prices do not include GST
Physical Properties
Type_of_product:
Polyethylene foam
Density:
0.032 g/cm³
Tensile_strength:
3.2-4.5 kg/cm²
Compression_set:
0.56-8.0 kg/cm²
Elongation:
50%
Thermal_conductivity:
0.040 w/m.k
Application_temperature_range:
-40°c to +70°c
Service_temperature:
-40°c
Tear_resistance:
2.7 kg/cm
Shelf_life:
5 years, when stored in cool dry conditions between 10°c and 35°c
Chemical_resistance:
Excellent to water and detergent solutions; moderate to diluted acids, alkalis, petrol, and oil for short periods
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Shipping & Delivery
**$15.95 + GST for Australia-wide shipping, excluding DG, oversized or long-length items, and bagged items weighing 15kg or above. If your order includes any of these, you will be contacted to arrange additional freight fees
Key Features
- Manufactured from closed-cell, low-density polyethylene foam
- Excellent compression and recovery properties
- Resistant to weathering and most chemicals
- Minimal water absorption
- Available in a wide range of diameters (up to 70mm)
- Non-toxic and low VOC, meeting "green star" environmental criteria
- Lightweight, non-staining, and odourless
- Temperature resistance from -60°C to intermittent temperatures of 260°C
Suitable Substrates
- Masonry, Brick, Stone, Porcelain
- Metal, Aluminium
- Timber
- Plastics, Fibreglass
- Painted surfaces
- Rubber
- Powder-coated surfaces
- Waterproof membranes
Uses
- Prevents 3-sided sealant adhesion
- Supports sealants in expansion joints, window glazing, and bridge construction
- Suitable for horizontal joints subjected to damp environments
- Used behind cold-applied Acrylic, Silicone, PU, MS, SPUR, and other sealants
Benefits
- Ensures correct sealant profile for optimal movement
- Conforms to irregular joint shapes due to its flexibility
- Can be stretched, compressed, or bent without compromising performance
- Non-staining and highly compressible (25% nominal)
- Provides consistent adhesion across various joint widths
- Suitable for both internal and external applications
Application Guide
- Ensure sealant application requirements are met before installing the backing rod.
- Use the Backing Rod Insertion Tool to ensure the rod is positioned correctly in the joint.
- Take care not to damage the outer surface of the rod during installation.
- Fill the joint completely to avoid air entrapment, which can cause bubbles in the sealant.
- If the joint depth does not accommodate the backing rod, use a bond breaker tape.
Limitations
- Avoid excessive longitudinal stretching during installation
- Not suitable for use in hot-poured sealants above +70°C
- Not recommended for use in swimming pool applications due to high chlorine levels
- Should not be exposed to direct UV light
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