Cable Failure is Not an Option: Invest in Next-Level Cable Protection

In the world of industrial engineering, we often treat cables as 'set it and forget it' components. We spec them based on idealized, theoretical conditions, ensuring the jacket material meets the basic requirements of the datasheet.

But as any maintenance manager or field engineer will tell you, the factory floor is rarely as forgiving as a controlled environment.

In a recent webinar featuring Steve Dugan, VP of Marketing & Sales at Dunbar, the conversation centered on a harsh reality: even the most robust cables are failing prematurely. The culprit isn’t usually a catastrophic event, but rather the slow, silent "death by a thousand rubs."

Watch the webinar: https://7222464.hs-sites.com/cable-failure-is-not-an-option-webinar

Introducing the "Bulletproof Vest" for Cables

If the standard plastic jacket is the first line of defense, Dugan suggests we need a second, tougher line. He refers to Woven Fabric Heat Shrink Tubing as the "bulletproof vest" of the cable world.

But what makes this material different from the standard heat shrink you find in a local hardware store?

The Science of the Weave

Unlike standard extruded plastic tubing, ArmorFlex® (Dunbar’s engineered solution) utilizes a precisely engineered woven structure of Polyester and Polyolefin.

• Load Distribution: Because it is interlaced, the fabric spreads impact and abrasion across multiple strands rather than allowing force to concentrate on a single point.
• A "Shrink-to-Fit" Armor: When heat is applied, it doesn’t just get smaller; it forms a tight, custom-fitted reinforcement that stays in place without slipping or bunching, even under continuous movement.
• Breathability: Unlike conduit or split loom, the open-weave design prevents moisture, humidity, and heat from being trapped, which drastically reduces the risk of corrosion and mold.
• Curiosity Gap: In the webinar demo, Steve demonstrates how easy it is to slide this armor over existing connectors. You’ll want to see the 2:1 shrink ratio in action—it’s the difference between a loose sleeve and a "locked-in" protective layer.

 
Industry Applications: Where "Operational Insurance" is Non-Negotiable

The webinar highlighted several key industries where standard cables simply cannot survive the lifecycle of the machine without extra help.

Transportation and Heavy Machinery

On trailers, cranes, and garbage trucks, cables are exposed to "cable-on-metal" abrasion and road debris. For a crane flexing hundreds of feet in the air, wind-induced vibration fatigue is a constant threat. ArmorFlex, aka WFHS-221, acts as a dampener, absorbing the vibration before it can stress the internal copper strands.

Energy and Infrastructure

In oil extraction and wind energy, the enemy is chemical. ArmorFlex is designed to resist:

• Hydraulic fluids and oils
• Brake fluid and battery acid
• Antifreeze and gasoline
• UV exposure from harsh outdoor environments

Marine and Power Generation

One of the most surprising benefits of the woven construction is its ability to eliminate rattle. In engines and generators, the snug fit reduces noise while the self-extinguishing properties (extinguishing within 60 seconds) provide a critical safety layer.

The "Cheaper Alternative" Trap

During the Q&A session, a participant asked a question every procurement manager has on their mind: "We already use standard heat shrink tubing, which is cheaper. Why switch?"

Dugan’s response was direct: Standard heat shrink is just a thicker plastic layer.

If you are bundling wires in a controlled cabinet, standard heat shrink is fine. But if your application involves movement, standard plastic will eventually wear through just like the cable jacket. ArmorFlex isn't just "thicker"; it’s a different mechanical structure.

"You’re not just buying premium heat shrink," Dugan noted. "You’re protecting the much more expensive assets your operation depends on."

Why You Should Watch the Full Demo

While we can describe the material science, there is no substitute for seeing the installation process. The webinar includes a technical demo that covers:

• The "Cold" Slide: How the material behaves before heat is applied (and why it’s a game-changer for retrofits).
• The Recovery Phase: A close-up look at how the polyester-polyolefin weave conforms to irregular shapes.
• The "Finished" Flexibility Test: Seeing how a fully armored cable maintains its range of motion without the "stiffness" of traditional conduit.

Conclusion: Don't Wait for the Short Circuit

Cable failure is often treated as an "accident," but in high-vibration, high-abrasion environments, it is an eventuality. By reinforcing your assemblies with woven fabric heat shrink, you aren't just adding a layer of plastic—you're adding a layer of operational insurance.

To reiterate our webinar closing –

Maximizing cable life is critical to your bottom line.

Ready to see the "Bulletproof Vest" in action? Watch the full Webinar On Demand here to see the live demo and hear the full deep-dive into the material science of ArmorFlex.