Open Cell Backing Rod - Round
Adheseal Open Cell Backing Rod is a non-gassing, breathable foam used for joint backing in construction. It allows for faster sealant curing and conforms to various joint sizes.
- $116.40
- $116.40
- Unit price
- per
Prices do not include GST
Physical Properties
Type_of_product:
Polyurethane foam
Density:
32 ± 3.0 kg/m³
Tensile_strength:
120< kpa
Compression_set:
10> %
Indentation_force_deflection:
340 ± 20 n
Elongation:
90< %
Ball_rebound:
50> %
Application_temperature_range:
-40°c to +70°c
Service_temperature:
-60°c to intermittent 260°c
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 resistance 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
Adheseal Backing Rod Open Cell is an open cell polyurethane foam backing rod used in expansion joints and as a non-gassing backer rod with caulking and sealant applications. It comes in continuous length rolls dispensed from a binder twine core.
Key Features
- Medium-density open-cell polyurethane foam
- Non-gassing, ensuring sealant cures from both sides
- Suitable for hot-pour sealants including silicone, rubber, and asphalt
- Temperature range from -60°C to intermittent 260°C
- Available in diameters up to 50mm
- Compressible, bendable, and stretchable for various joint sizes
- Non-toxic, low VOC, meeting "green star" environmental criteria
- Odourless and non-staining
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
- Used behind cold-applied Acrylic, Silicone, PU, MS, SPUR, and Hybrid sealants
- Supports sealants in expansion joints, window glazing, precast panels, and bridge construction
- Compatible with hot-pour sealants such as silicone, rubber, and asphalt
Benefits
- Faster sealant curing due to breathable foam structure
- Flexible application in a wide range of joint sizes
- Excellent compressibility and resilience, keeping the rod in place during installation
- Reduces the risk of sealant failure due to its non-gassing properties
- Can be installed without concern for surface damage, minimizing the need for repairs
- Suitable for both internal and external applications
Application Guide
- Ensure that sealant-specific application requirements are followed before installing the backer rod.
- Use the Backing Rod Insertion Tool to place the rod at the correct depth in the joint.
- Compress the open-cell foam by at least 24% during installation to ensure it remains in place.
- In cases where joint depth is insufficient for the rod, apply bond breaker tape to prevent 3-sided adhesion.
Limitations
- Avoid excessive longitudinal stretching during installation
- Not suitable for applications where sealant is heated above +70°C
- Not recommended for use in swimming pools due to exposure to chlorine
- Should not be exposed to direct UV light
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