From Alaska to Memphis: The Evolution of Heat Shrink Technology

 

“Long distance information, get me Memphis, Tennessee!”

That’s where this stop takes us—June of 1976. The pipeline industry was in the middle of a quiet but important transition, and once again, innovation was being driven by necessity.

Not long before this, Raychem had made a name for itself by developing coatings used on the Trans-Alaska Pipeline System. One of those key products, Arcticlad, was engineered for extreme conditions—applied with specialized equipment on the unforgiving slopes of Alaska.

But as with most innovations, the next challenge wasn’t invention—it was adaptation.

By the time we arrive in Memphis, Raychem is working to modify that same Arcticlad technology for a much more practical application: coating pipe bends in the field—without the need for large, specialized equipment.

This was a big deal.

Bends have always been tricky. Unlike straight pipe, they introduce geometry that doesn’t cooperate easily with rigid or pre-formed coatings. The goal here was to create something flexible, field-friendly, and reliable—without sacrificing performance.

What we see in these early applications is a product that works… but still has some growing up to do.

Today, that evolution has led us to Flexclad Heat Shrinkable Tape—a far more refined and contractor-friendly solution.

Available in:

• 2", 3", and 4" widths
• 50-foot rolls

Flexclad is designed specifically for applications like these—tight geometries, field installs, and situations where simplicity matters. Even better, it’s readily available and kept in stock at our production facility in Conroe, Texas, just outside The Woodlands.

The photos from that 1976 Memphis job tell a familiar story—one that anyone who has ever worked with a “new” product can appreciate.

It’s a bit clunky.

You’ve got:

Hand application

One person dedicated to running a torch just to keep the pipe preheated

Constant adjustments to get the material to cooperate

And the result?

Functional—but not exactly pretty.

Wrinkles show up throughout the installation. At first glance, you might assume poor adhesion or trapped air. But in reality, those wrinkles are something different: pockets of adhesive that cooled too quickly, before the heat-shrink backing had a chance to fully conform and smooth out the surface.

In other words—it wasn’t a failure. It was a process still being refined.

What makes this moment in Memphis interesting isn’t just the product—it’s the process.

This is what innovation actually looks like in the field:

• Trial and error
• Imperfect installations
• Learning how materials behave outside of controlled environments

Those early “good enough” results laid the groundwork for the solutions we take for granted today.

Modern products like Flexclad eliminate many of those early challenges:

• Easier handling
• More forgiving installation
• Consistent performance across a range of conditions

The jump from Arcticlad on the Alaskan slopes to Flexclad in today’s field applications is a great example of how the industry evolves—not in giant leaps, but in steady, practical improvements.

Memphis, 1976 wasn’t about perfection. It was about progress.

And sometimes, a few wrinkles are just part of getting there.

Revisiting a Milestone in Raychem History: The Great Trans-Alaskan Pipeline Challenge (August 1975)

 

In August of 1975, Raychem found itself at the center of a historic moment in the oil and gas industry. The Trans-Alaskan Pipeline, a massive undertaking that would transport oil from the Alaskan wilderness to the rest of the world, was facing significant delays. One of the primary challenges? A substantial amount of pipe coated with Fusion Bond Epoxy (FBE) had been left exposed to the harsh UV rays of the Alaskan sun for far too long. As a result, the FBE began to degrade, jeopardizing the integrity of the entire pipeline.

Enter Raychem: a company known for its innovative solutions, but this time, the task ahead was nothing short of extraordinary. Raychem was given a daunting proposition: find a way to re-coat thousands of feet of exposed pipe without needing to ship it anywhere. The clock was ticking, and the stakes were high.

Raychem’s team immediately sprang into action. They understood that solving this issue wasn’t just about fixing a problem; it was about developing a solution that could be deployed quickly and effectively in some of the most remote and challenging conditions on Earth.

The result? Arcticlad. A revolutionary product—a spiral-wrapped, heat-shrinkable tape—was born. This tape could coat long lengths of pipe with precision, effectively protecting the pipeline and preventing further damage from UV exposure. But there was one more hurdle to overcome: the installation. Raychem didn’t just create a new product; they also engineered the machinery needed to apply the Arcticlad tape in the field.

This was a true engineering marvel. The teams worked tirelessly, and within an incredibly short amount of time, they had a solution that was both effective and scalable.

The success of Arcticlad wasn’t just a technical win. It was a business triumph that would have lasting implications for Raychem’s future. The ability to offer a cost-effective, field-deployable solution allowed the company to generate significant revenue while cementing its reputation as a leader in pipeline coatings. This success didn’t just solve a problem—it set the stage for Raychem’s pipeline division to thrive in the years to come, establishing a legacy that would last for decades.

Thanks to the ingenuity, quick thinking, and relentless dedication of the Raychem team, the Trans-Alaskan Pipeline project became more than just a milestone—it was a defining moment that helped Raychem’s pipeline division flourish and remain a leader in the industry for many years.

This remarkable chapter in Raychem’s history shows how, with the right combination of innovation, determination, and teamwork, a challenge can be transformed into an opportunity that reshapes the future.