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Adheseal Backing Rod Closed Cell - Round is a low-density polyethylene foam joint filler engineered for high-stakes expansion joints in civil infrastructure and precast concrete construction. The non-absorbent, closed-cell structure prevents moisture wicking into the joint while providing a 95% compression recovery rate to maintain a consistent bond-breaker profile during extreme thermal movement cycles.
Compatible with cold-applied sealants including Silicone, PU, and Hybrid types, it resists chemical degradation from detergents and oils to ensure long-term structural integrity in demanding environments.
Frequently Asked Questions About Adheseal Backing Rod Closed Cell
Q: What is the benefit of using a closed cell backing rod?
A: Closed cell backing rods minimize water absorption, making them ideal for damp environments and ensuring long-term durability and sealant performance.
Q: Can I use this backing rod with any type of sealant?
A: Yes, it is compatible with cold applied sealants, including Acrylic, Silicone, PU, MS, SPUR, and Hybrid types. However, consult our technical department for hot poured sealants.
Q: How do I choose the correct size backing rod?
A: The backing rod should be 25% larger than the joint width to ensure it stays in place during sealant installation and allows for proper sealant thickness (half the joint width).
Q: What precautions should I take during installation?
A: Avoid excessive stretching, use an insertion tool to ensure proper depth, and take care not to damage the rod's outer surface to maintain sealant integrity.
Q: Is this product suitable for swimming pool applications?
A: It is not suitable for internal swimming pool applications with high chlorine levels (above 5ppm). High chlorine can degrade the backing rod.
Q: Can this backing rod be used in outdoor applications?
A: Yes, it is suitable for both internal and external applications. However, it should not be directly exposed to UV light.
Use Adheseal Backing Rod Closed Cell for:
- Creating optimal joint profiles for sealants.
- Preventing 3-sided adhesion in construction joints.
- Supporting sealants in expansion joints, window glazing, and precast panels.
- Filling horizontal joints subjected to damp conditions.
Why Use Adheseal Backing Rod Closed Cell for:
- Ensuring optimal sealant performance and longevity.
- Providing a reliable bond breaker and joint filler.
- Offering versatility for various construction applications.
- Minimizing water absorption and enhancing durability in damp environments.
How to apply Adheseal Backing Rod Closed Cell:
- Prepare the joint surface according to the sealant manufacturer's instructions.
- Select the correct diameter backing rod (25% larger than the joint width).
- Insert the backing rod into the joint, ensuring it is at the correct depth.
- Use a backing rod insertion tool to avoid damaging the rod's surface.
- Ensure the rod is compressed to the desired depth to create the proper sealant profile.
- Apply the sealant as per the sealant manufacturer's instructions.
Adheseal Backing Rod Closed Cell limitations:
- Avoid excessive longitudinal stretching during installation.
- Not suitable for hot poured sealants above +70°C.
- Not suitable for internal swimming pool applications with high chlorine levels (above 5ppm).
- Not to be UV exposed.
Safety precautions when using Adheseal Backing Rod Closed Cell:
- Handling: Wear gloves to prevent skin irritation.
- Installation: Use proper tools to avoid injury during installation.
- Storage: Store in a cool, dry place away from direct sunlight.
- Disposal: Dispose of according to local regulations for polyethylene foam.
Adheseal Backing Rod Closed Cell can be used on the following substrates:
- Masonry, Brick, Stone, Porcelain
- Metal, Aluminium
- Timber
- Plastics, Fibreglass
- Painted surfaces
- Rubber
- Powder coat
- Waterproof membranes
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