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SpikeFast® IJ-30: The Superior Solution for Insulated Joint Repairs

Written by WVCO Railroad Solutions
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SpikeFast® IJ-30 application.

Insulated joint rail failures can disrupt train operations and compromise safety. Our SpikeFast® IJ-30 “liquid end post” prevents these disruptions and extends the life of these insulated joints.

What fails in an Insulated Joint?

Insulated rail joint ready for repair.

Insulated joints play a critical role in railway infrastructure, ensuring that electrical signals are effectively transmitted while maintaining the structural integrity of the rail system. These joints are typically constructed with nylon inserts that maintain insulation between adjacent rail sections. Over time these nylon inserts can suffer from wear and environmental exposure, leading to failures that compromise both functionality and safety.

How Do Nylon Inserts Fail?

Historically, nylon inserts have been the standard choice for insulating joints. While they provide initial insulation, their durability is often compromised under various conditions:

  • Wear and Tear: Over time, the mechanical stress from trains passing over the rails can lead to wear on nylon inserts, creating gaps that affect insulation and signal reliability.
  • Environmental Factors: Exposure to moisture, temperature fluctuations, and UV radiation can degrade nylon, causing it to become brittle or warp, thus reducing its effectiveness.
  • Maintenance Challenges: Frequent inspections and repairs are often necessary, increasing maintenance costs and downtime for rail operations.

The SpikeFast® IJ-30 Solution

SpikeFast® IJ-30 packaging.
SpikeFast® IJ-30 packaging.

To address these limitations, WVCO Railroad Solutions has developed SpikeFast® IJ-30, a rapid-setting, two-part polyurethane designed specifically for use in insulated joint repairs. This advanced material offers several significant advantages over traditional nylon inserts:

  1. Seamless: SpikeFast® IJ-30 is form fitting, filling irregular gaps other material can’t get in, creating a seamless bond that provides electrical isolation, enhances the overall stability of the joint and minimizes displacement.
  2. Easy Application: SpikeFast® IJ-30 is packaged in a complete kit with 12 cartridges, putty to seal sides of joint, and extra mix tubes for multiple applications. Use a standard caulking dispenser to quickly place it in the joint. It cures in 30 seconds and can be applied in low temperatures.
  3. Superior Durability: SpikeFast® IJ-30 exhibits exceptional resistance to wear and tear, making it ideal for high-stress applications like railroad joints. Its elasticity allows it to absorb shocks and vibrations, thereby maintaining structural integrity over time.
  4. Environmental Resistance: Unlike nylon, SpikeFast® IJ-30 is highly resistant to moisture, temperature extremes, and UV exposure. This resilience minimizes the risk of degradation, ensuring that the insulation remains effective throughout varying weather conditions.
  5. Longevity: With a longer lifespan than nylon inserts, SpikeFast® IJ-30 reduces the frequency of maintenance and repairs. This translates into lower operational costs and less downtime, allowing for more efficient rail service. Recently inspected field repairs have held for more than two years—and counting.

Conclusion

IJ-30 after application.
IJ-30 repair after 14 months—holding with no signs of degradation.

As rail infrastructure continues to evolve, the adoption of innovative solutions like SpikeFast® IJ-30 for insulated joint repairs represents a significant step forward. With its superior durability, ductile nature and easy application, SpikeFast® IJ-30 enhances the overall reliability and safety of rail operations. By investing in proven, innovative materials, the railway industry can ensure more efficient service and safer travel for years to come.

For more information contact WVCO Railroad Solutions at 541-484-9621; wvcorailroadsolutions@wilvaco.com.

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