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.

Enhance Your Pipeline Protection with Henkel’s STOPAQ Composite Wrap

 

When it comes to safeguarding pipelines from environmental stressors and physical damage, Henkel's STOPAQ product line offers an innovative solution: the Outerglass Shield. This composite wrap material, crafted from a robust glass fiber fabric impregnated with a water-curable polyurethane (PU) resin, provides exceptional protection in various challenging conditions. Whether you're dealing with harsh weather, marine environments, or general physical wear, this tough, versatile wrap is designed to offer both long-lasting protection and enhanced durability.

What Makes the STOPAQ Composite Wrap Special?

The STOPAQ Outerglass Shield is engineered to perform in a wide range of demanding applications. Its unique water-curable resin makes it easy to apply, and its glass fiber reinforcement ensures it holds up under stress. As both a physical protective layer and an Anti-Corrosion Coating (ARO), this material is perfect for shielding pipelines from environmental damage while maintaining the integrity of field joint coatings.

If you’ve been looking for a reliable and tough outer coat, STOPAQ's composite wrap is a great choice. But how exactly does it fit into the broader pipeline protection scheme? Let’s take a look at some of the common applications:

Common Applications for STOPAQ Outerglass Shield

1. Soil to Air Pipeline Transitions
   In areas where pipelines transition from buried soil to exposed air, physical protection is crucial. The STOPAQ Outerglass Shield provides an extra layer of defense in these sensitive areas, helping to prevent wear and tear from external elements. The added strength of the composite wrap ensures long-term protection.
2. Splash Zone Coatings
   When pipelines are exposed to wet/dry cycles, currents, or floating debris—particularly in offshore environments—the coating can quickly degrade. STOPAQ Outerglass Shield is ideal for splash zones, where it’s vital to maintain an effective protective barrier. It’s built to withstand the continuous wear caused by harsh marine conditions.
3. ARO for Field Joint Protection
   Field joints are often the most vulnerable part of a pipeline, prone to corrosion and damage from external elements. STOPAQ's composite wrap serves as an effective ARO to safeguard field joint coatings. By providing extra protection, it helps preserve the integrity of your pipeline and extends its service life.
4. Mechanical Protection for Pipe Saddles
   Adding mechanical protection to pipe saddles is essential to prevent abrasion and physical damage during installation and operation. The Outerglass Shield acts as a durable layer, shielding pipe saddles from wear and enhancing the long-term performance of your pipeline system.
5. Additional Tough Outer Coats for Various Pipeline Components
   From bends and tees to valves, flanges, and other fittings, the STOPAQ Outerglass Shield can be applied to any area requiring extra protection. It’s versatile and designed to perform in various situations, making it a must-have for maintaining the durability of critical pipeline infrastructure.

Henkel's STOPAQ product line, specifically the Outerglass Shield, offers a combination of practical and robust features that make it a go-to choice for pipeline professionals. 

In conclusion, Henkel’s STOPAQ composite wrap offers an excellent solution for protecting pipelines in a wide range of environments. Whether you're dealing with transitions from soil to air, splash zones, or field joint coatings, the Outerglass Shield provides an essential layer of defense. By choosing this high-performance material, you’re ensuring your pipeline's integrity, durability, and longevity.

Have you used STOPAQ’s composite wrap in your pipeline projects? Share your experience or reach out to learn more about how this material can enhance your protective coatings today!

A Look Back at Innovation (and Cigarettes) on the Pipeline Right-of-Way

 

Let’s start with the real question—because you know it crossed your mind too: back in the 1970s, how many packs of cigarettes did a pipeline crew go through in a single day? A carton? More? Honestly… I’d believe it.

Different time, different jobsite culture. And while a lot has changed since then, one thing hasn’t: the constant push to solve problems in the field.

We’re still in Bakersfield, California, in the early days of wrap-around shrink sleeve technology. At this point, the industry was transitioning from tubular sleeves—an important innovation, but one that came with limitations.

This particular project introduces a new challenge: an insulated pipeline.

The original tubular sleeves developed by Raychem were designed to slide over the pipe before welding. That works well—until insulation enters the picture.

With an insulated line, a tubular sleeve would have needed to:

• Be large enough to fit over the insulation during installation
• Still be capable of shrinking tightly down onto the steel pipe

That’s a big ask.

This is where the wrap-around shrink sleeve starts to shine.

Instead of sliding over the pipe, it wraps around the joint after welding—making it far more adaptable, especially in cases like insulated lines or field repairs.

It’s another example of Raychem doing what they did best:

• Thinking ahead
• Solving problems before they became widespread
• Constantly innovating for new applications 

It’s a mindset you still see today from companies like Henkel—always working multiple angles and anticipating what the market will need next.

Now, if you take a closer look at this particular installation… it’s not winning any awards.

There are visible wrinkles in the closure strip—something that would raise eyebrows today. But context matters:

• The technology was brand new
• Installers were still learning the process
• Best practices were being developed in real time

So if you happen to be the installer from 1976 reading this—no disrespect. You were laying the groundwork the rest of the industry would build on.

CCS Weave: The High-Shrink Material That’s Changing the Game

 

When it comes to high-performance sealing solutions, Covalence has engineered something truly remarkable: CCS Weave. This innovative material is used to create Casing Seals, Flange Seals, and other applications where a high-shrink product is essential. But what makes CCS Weave stand out in a crowded market? Let’s dive in.

1. Unmatched Shrink Ratio
CCS Weave boasts an impressive 66% shrink ratio. To put that into perspective: a 24-inch casing pipe could see the Caseal shrink all the way down to just 8.5 inches if allowed. This dramatic shrink capability ensures a tight, secure fit, even on irregular surfaces.

2. Durable, Multi-Layer Construction
At the heart of CCS Weave is a fiber-reinforced sheet laminated between two layers of polyethylene. This construction delivers exceptional performance in key areas:

• Penetration resistance – tough enough to withstand challenging environments
• Abrasion resistance – maintains integrity over time
• Elongation – flexible enough to handle complex applications

3. Hyper-Aggressive Mastic Sealant
A seal is only as good as the bond it creates. CCS Weave utilizes a hyper-aggressive mastic sealant that adheres well to a variety of substrates—even when surface preparation isn’t perfect. This ensures reliable sealing performance across diverse field conditions.

High-shrink materials can introduce a unique problem: how to keep the material intact during the shrinking process. Covalence tackled this challenge by borrowing a brilliant technique from Raychem, developed decades ago. Since 1995, we’ve been sewing a nylon zipper into the sleeve using Kevlar thread.

When the ends of the sleeve are zipped together, even the extreme 66% shrink ratio isn’t enough to break the threads. This simple yet ingenious solution allows CCS Weave to deliver maximum shrink performance without compromising structural integrity.

CCS Weave isn’t just another sealing material—it’s a high-performance solution designed to meet the demands of today’s toughest applications. With its impressive shrink ratio, multi-layer durability, and clever engineering, it’s a product that engineers and field teams alike can rely on.

It’s more than cool—it’s next-level material innovation.

Stopaq: The Common Sense Tank Chime Repair Solution

If you’ve followed some of my previous posts on Stopaq visco-elastic coating systems, you’ve likely seen how effective they can be when it comes to repairing and recoating tank chimes. Today, I want to walk through the application process—and highlight a few key advantages that really set this system apart in the field.

One of the first things that stands out is the minimal surface preparation required. Unlike traditional coating systems that often demand abrasive blasting and extensive prep work, this process eliminates the need for sandblasting altogether. That alone can significantly reduce both project complexity and cost.

Another major benefit is the simplicity of the application. There’s no need for specialized spray equipment or complex tooling. The system is designed to be straightforward and user-friendly, allowing crews to get the job done efficiently without a steep learning curve.

And perhaps most importantly, the time savings are substantial. Because of the streamlined process, you can complete projects with fewer crew members and in far fewer hours compared to conventional methods. In today’s environment—where labor availability and project timelines are constant challenges—that’s a game changer.

If you’re looking for a faster, simpler, and more efficient way to handle tank chime repairs and recoating, this is definitely a system worth considering.

Feel free to reach out if you’d like more information or want to discuss how it could fit into your next project.

Powercrete J: The Go-To Field Joint Coating for HDD and Tough Pipeline Applications

 

When it comes to protecting pipeline field joints—especially in demanding environments like horizontal directional drilling (HDD) and bores—you need a coating system that can handle more than just the basics. That’s where Powercrete J continues to stand out as a premier solution in the industry.

Backed by Seal for Life Industries, Powercrete J has built a reputation for delivering exceptional performance in some of the most challenging pipeline conditions out there.

Let’s start with where Powercrete J really shines: directional drills, bores, and high-stress installations.

These applications demand:

• Extreme abrasion resistance

• Strong Shore-D

• Durability in wet dry pipeline cycles

Powercrete J checks all those boxes.

This ceramic-modified, 100% solids epoxy is specifically engineered to provide corrosion and abrasion protection for both mainline pipe and field joints. Whether you're pulling through rocky soil during an HDD or dealing with difficult right-of-way conditions, this coating is designed to hold up.

While Powercrete J is a go-to for HDD contractors, it’s not limited to specialty applications.

Many contractors are using it for:

• Standard girth weld field joints

• Rehabilitation work

• Tie-ins and fittings

Why? Because it offers:

• Excellent adhesion to FBE, liquid epoxies, and even coal tar epoxy (CTE)

• Strong mechanical properties

• The flexibility to be hand applied depending on the jobsite needs

One of the biggest advantages of Powercrete J is how adaptable it is in real-world conditions.

• Steel: SSPC-SP10 (Sa 2½) abrasive blast recommended

• FBE: SSPC-SP7 (Sa 1) sweep blast to remove gloss

• Handles situations where full blasting isn’t feasible

As long as the substrate temperature is at least 5°F above dew point, you're good to go.

• Can be applied up to 20 mils (500 microns) per layer

• Multi-coat builds up to 60 mils (1500 microns) depending on requirements

Powercrete J is designed to be user-friendly and efficient.

From the Product Data Sheet, a few highlights worth calling out:

• 100% solids, no VOCs

• Meets AWWA C210, EN 10289, and CSA Z245.30 standards

• Excellent soil stress resistance

• Operating temperature up to 140°F (60°C)

And for those tracking coverage:

• ~81.5 ft² per gallon at 20 mils

• ~40.1 ft² per gallon at 40 mils

Another area where Powercrete J really delivers is availability and logistics.

• Offered in 2 lb, 4 lb, 10 lb, or custom kits

• Orders typically ship within 1 day (often same day)

• Common order sizes range from 8 kits to 20–30 kits

Bottom line: no order is too small, and you won’t be waiting around when the job is ready to move.

If you’re working in HDD, bores, or any application where coatings take a beating, Powercrete J has proven itself time and time again. But its versatility also makes it a strong candidate for standard field joints and rehabilitation work.

It’s that combination of performance, flexibility, and availability that keeps contractors coming back to it.

If you haven’t looked at Powercrete J recently—or only think of it as an HDD coating—it might be time to take another look.

A Game-Changer in the Field: The Introduction of Wraparound Shrink Sleeves

 

Let’s set the scene: it’s the mid-1970s, and we’re heading to Bakersfield, California—right in the heart of pipeline country. At this point in time, the industry is on the verge of a meaningful shift with the introduction of a new solution: the wraparound shrink sleeve, commonly referred to as WPC.

At first glance, it might not sound revolutionary. But for contractors working in the field, this innovation was a big deal.

Flexibility Comes to the Jobsite

Prior to wraparound sleeves, field joint coatings often required pre-installed tubular sleeves. That meant planning ahead—sometimes far ahead—and physically sliding those sleeves down long sections of pipe to reach the weld joint. As you can imagine, that wasn’t always practical.

With the introduction of wraparound shrink sleeves, contractors suddenly had flexibility. They could complete their welds first and then return later to apply the coating. This was especially valuable in real-world conditions, where field joint coatings are frequently ordered at the last minute. Instead of scrambling or working around logistical headaches, crews could simply bring the material to the weld and install it on the spot.

In short, it made life a whole lot easier.

Built to Perform

Early versions of these sleeves looked a bit different than what you’ll see today—some even featured a bold “RAYCHEM” print across the closure. But while the appearance has evolved, the core technology has remained remarkably consistent.

At the heart of the system is a high-shear adhesive designed to bond quickly and securely to polyethylene (PE) surfaces. Even under elevated temperatures, the adhesive maintains its grip—an essential characteristic for pipeline integrity.

Over time, enhancements were made to improve performance even further. One key addition was the incorporation of a fiber mesh within the closure, providing extra strength to resist the forces generated by high-shrink materials. These refinements helped ensure reliability across a wider range of conditions.

Expanding the Possibilities

The introduction of WPC didn’t just solve a logistical problem—it opened the door to an entire family of solutions. With this new format, manufacturers like Raychem were able to expand their product offerings to address a variety of applications, operating temperatures, and environmental challenges.

What started as a practical innovation in the field quickly became a foundational technology, shaping the way pipeline coatings would be applied for decades to come.

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From a modern perspective, it’s easy to take wraparound sleeves for granted. But back in the 1970s, this was a pivotal moment—one that brought much-needed flexibility, efficiency, and performance to pipeline construction and maintenance.

Recoating a Condensating Pipeline in Chicago: When Conditions Leave Few Options

 Pipeline rehabilitation projects are rarely simple—but every now and then a job comes along that checks nearly every “difficult application” box imaginable.

Today’s example takes us to Chicago, where a client needed to rehabilitate a 36-inch pipeline that had originally been coated with coal tar epoxy. Over time, the coating had begun to fail, and the operating conditions were creating continuous condensation on the pipe surface.

Recoating a sweating pipeline is already challenging. Add tight working conditions and limited surface preparation, and suddenly the list of viable coating systems becomes very short.

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A Challenging Environment

The pipeline in question included both horizontal and vertical sections, and the working space around the pipe was extremely limited.

Just as importantly, the environment did not allow abrasive blasting, which meant achieving the typical high-level surface preparation required by many coatings simply wasn’t possible.

That left the client with a very demanding checklist for any potential coating system:

• Minimal surface preparation requirements

• Ability to be applied in tight spaces

• High flexibility

• Tolerance for high humidity

• Capability to be applied to a sweating (condensating) pipe

• A system capable of extending asset life by at least 25 years

In other words—no big deal, right?

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When the Checklist Seems Impossible

Many conventional coating systems would immediately struggle with these conditions.

Most coatings require abrasive blasting to achieve proper adhesion. Others simply cannot tolerate moisture during application, let alone a pipe that is actively condensating.

And when a pipe is constantly expanding, contracting, and exposed to humidity, flexibility becomes critical to long-term performance.

Fortunately, there are systems specifically designed for these kinds of environments.

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The Stopaq Solution

For this project, the solution centered around Stopaq Wrappingband WSH from Stopaq (Seal For Life Industries).

One of the key advantages of the WSH system is its ability to displace surface moisture during application. That makes it uniquely suited for situations where condensation is unavoidable.

Instead of requiring abrasive blasting, the pipe surface can be prepared to ST2/ST3, which can typically be achieved using hand tools to remove loose, disbonded coating and rust.

Once the loose material is removed, the process is straightforward:

1. Apply Wrappingband WSH, which conforms to the pipe and displaces moisture.

2. Install a protective outerwrap to provide additional mechanical protection.

3. The pipeline is once again protected from corrosion.

Simple, but extremely effective.

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Checking Every Box

What makes this project particularly interesting is how many difficult requirements had to be satisfied simultaneously.

The coating system needed to:

• Perform with minimal surface preparation

• Be installed in tight working conditions

• Handle high humidity

• Be applied to a condensating pipe

• Deliver long-term asset protection

In this case, the Stopaq system checked every box—allowing the operator to rehabilitate the pipeline and extend its service life without the need for blasting or major operational disruptions.

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The Big Lesson

Pipeline rehabilitation isn’t always about finding the “strongest” coating. Often it’s about finding the coating that can actually be installed under the real-world conditions you’re facing.

In environments where traditional surface prep and dry conditions simply aren’t possible, visco-elastic coating systems like Stopaq can make the difference between a project that stalls—and one that succeeds.

And in Chicago, that made all the difference for this 36-inch line.

When the Bore Fights Back: Evaluating Covalence DIRAX in Rocky Soil

 Directional drilling can be unforgiving on pipeline coatings. When pipe is pulled through tight bores filled with rock, friction and abrasion can quickly expose the weaknesses of materials that weren’t designed for that kind of punishment.

A few years ago, we had the opportunity to witness exactly how different coating systems perform under those conditions during a product evaluation for Texas Gas Transmission.

The objective was straightforward: evaluate three coating systems on a 4.5" OD pipe that would pass through a 160-foot directional bore in extremely rocky soil.

As it turned out, the test became even more interesting than planned.

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The Unexpected Test

Halfway through the installation, the drilling equipment failed.

At that point the pipe had already been pulled 80 feet into the bore, meaning the only option was to pull it 80 feet back out in reverse.

Instead of a single pass through the bore, the coatings experienced a 160-foot round trip—80 feet in and 80 feet out—through a very aggressive environment.

For a coating system, that’s a serious test of abrasion resistance and adhesion.

First up was cold applied tape.

Before going any further, it’s worth adding an important disclaimer:
I’m not aware of any cold applied tape manufacturer that recommends their product for directional drilling applications.

But as anyone in the pipeline industry knows, coatings sometimes get used in ways they were never intended to be used.

In this case, the result was dramatic.

When the pipe came back out of the bore, the tape coating had essentially disappeared. It had been stripped off somewhere along the 160-foot journey and deposited in the ground along the way.

Not exactly the outcome you’re hoping for.

Next up was a standard three-layer heat shrink sleeve system.

Again, another quick disclaimer: this is not a product we would typically recommend for a directional drilling application.

When the pipe came out of the bore, the sleeve was still in place, which was certainly better than the tape. However, the backing had been gouged in two locations by the rocky soil.

That kind of mechanical damage can create long-term risks if the coating barrier is compromised.

The third coating evaluated was Covalence DIRAX HDD Coating System from Seal For Life Industries.

DIRAX is a multi-layer coating system with a fiber-reinforced backing, specifically designed to withstand the mechanical forces associated with horizontal directional drilling (HDD).

And in this test, it showed why purpose-built systems matter.

Even in areas where the underlying FBE coating had been scratched by the rocky environment, the DIRAX remained fully intact and undamaged.

No gouging. No disbondment. No missing material.

Just solid protection.

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The Takeaway

Directional drilling puts extraordinary stress on pipeline coatings. Materials designed for conventional trench installations often struggle—or fail entirely—when exposed to the abrasion and mechanical forces inside a bore.

This evaluation was a good reminder of an important principle:

Use coatings designed for the environment they’re going into.

In this case, the product specifically engineered for HDD applications—DIRAX—was the one that handled the challenge with ease.

Sometimes the right answer really is the purpose-built solution.

Understanding Covalence’s WPCT Thermal Indicator: A Built-In Inspection Tool

For those who may not be familiar, WPCT from Covalence is a wrap-around heat-shrinkable sleeve designed for pipeline corrosion protection. One of the most interesting features of this product is its built-in thermal indicator, which essentially acts as a built-in inspection tool for installers and inspectors in the field.

When the sleeve is first supplied, the backing material displays a distinct cross-hatch pattern. This pattern is intentional and serves a very practical purpose.

During installation:

• Before heating: The sleeve shows the cross-hatch pattern across the backing.

• During proper heating: As the installer applies heat, the backing begins to shrink.

• After reaching the correct temperature: The cross-hatch pattern disappears and becomes smooth.

That smooth appearance indicates two important things have happened:

1. The sleeve has shrunk as much as the pipe substrate allows.

2. The mastic sealant has reached the correct temperature to properly flow and fill, ensuring a complete seal around the pipe.

In other words, the visual change from cross-hatched to smooth confirms that the sleeve has reached the proper installation temperature.

For pipeline inspectors and coating crews, this built-in indicator provides a simple but powerful benefit: instant visual confirmation of proper installation.
This type of backing technology isn’t limited to WPCT alone. Variations of the same thermal indicator backing are used across several products in the Covalence lineup, including:
Despite many innovations in pipeline coating systems over the years, Covalence heat shrink sleeves remain widely used both in the United States and around the world. Their durability, ease of inspection, and reliable sealing performance continue to make them a trusted choice for field joint coatings.

Rather than relying solely on temperature guesses or installer experience, the sleeve itself provides feedback. If the cross-hatch pattern remains visible, more heat is required. When the backing becomes smooth, the sleeve has reached the correct thermal state.

This feature helps improve:

• Installation consistency

• Inspection confidence

• Long-term coating performance

This same backing is used with the following products (and some that I haven't listed)

• WPCT

• WPC65M

• WPC100M

• HTLP60

• HTLP80

• WPC120

• TPS

Each of these products utilizes similar heat-shrink technology designed to provide reliable sealing and corrosion protection for pipeline field joints.

Today, Covalence operates as part of Seal For Life / Henkel, and the technology traces its origins back to the pioneering pipeline innovations of Raychem Corporation.

Even decades after their introduction, these heat-shrink systems continue to prove that simple visual engineering can make a big difference in the field.

 

ScarGuard: The New ARO

In recent years, one of the fastest-growing products in the pipeline industry has been ScarGuard from Seal For Life Industries.

If you want the informal description?

Think of it as a field-applied ARO… on steroids, testosterone, and nine cups of coffee.

If you prefer the technical version:

A fiber-reinforced composite mechanical protection system designed for HDD and other demanding applications.

 ScarGuard is a moisture-curable, fiber-reinforced wrap engineered to deliver serious mechanical protection. Once cured, it forms a tough composite shell around the pipeline — dramatically increasing resistance to:

• Abrasion

• Impact

• Gouging

• Shear forces during pullback

• Damage from sharp or rocky backfill

And in today’s environment, that matters more than ever.

As more pipelines are installed via horizontal directional drilling (HDD) and routed through rocky or unforgiving soil conditions, owners are becoming less comfortable relying solely on traditional ARO systems.

We’re seeing a growing trend:

• End users adding ScarGuard over field joints

• Owners specifying it as added protection over factory-applied coatings

• Projects in rocky terrain incorporating it as a risk-reduction strategy

Because when you’re pulling thousands of feet of pipe through abrasive conditions, the cost of extra protection is small compared to the cost of failure.

ScarGuard doesn’t replace your corrosion coating system — it enhances it.

It acts as a mechanical armor layer, giving your pipeline a fighting chance in conditions where standard protection may be pushed to its limits.

In challenging soils, HDD crossings, or projects where downtime simply isn’t acceptable, that added durability can make all the difference.

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If you’d like more information on how ScarGuard can fit into your next project — or whether it makes sense for your soil conditions — reach out. I’m happy to help.

Powercrete R65/F1: One Fast-Curing Epoxy, Three Powerful Configurations

When it comes to field joint coatings and on-site repairs, speed matters. Downtime costs money, schedules are tight, and performance can’t be compromised. That’s exactly where Powercrete R65/F1 shines.

This fast-curing epoxy coating system is designed to give you flexibility in the field without sacrificing performance. And the best part? It’s available in three practical configurations to match your application needs.

for traditional field joint applications, the hand applied kits are a proven, reliable solution.

Available in:

• 1 lb kits

• 2 lb kits

• 4 lb kits

• Custom kit sizes

These kits give contractors the flexibility to order exactly what the job requires. Whether you’re coating standard field joints or addressing specialty applications, R65/F1 delivers the fast cure time you need to keep projects moving.

If you’re looking to spray, the 400ml Spray Grade configuration is a standout.

Sold in a 600ml cartridge, this system lays down a beautiful, uniform coating with excellent build and finish. The spray application provides:

• Consistent thickness

• Smooth appearance

• Efficient application

• Reduced labor time

For crews wanting a cleaner, faster, and more controlled application process, this option is hard to beat.

Sometimes you don’t need a full kit — you just need a fast, reliable repair solution.

The 50ml Repair Cartridges are sold as a complete case package that includes:

• 25 cartridges

• 50 static mixing tips

• 1 dispenser gun

This configuration is perfect for quick touch-ups, coating damage repairs, or small-area applications. It’s compact, convenient, and extremely efficient in the field.

And let’s be honest — who doesn’t want a fast-curing repair material when schedules are tight and inspectors are watching?

Powercrete R65/F1 proves that you don’t have to choose between speed and performance. Whether you prefer hand application, spray grade precision, or cartridge-based repairs, there’s a configuration built for your workflow.

If your projects demand durability, efficiency, and a rapid return to service, R65/F1 delivers — every time.

Veracruz, Mexico – 2013 Recoating an Operational Gas Line Without Shutdown

In 2013, we headed to Veracruz, Mexico to tackle a challenging rehabilitation project involving 20” and 30” operational gas lines.

The issue? A failing external coal tar epoxy (CTE) coating on an active pipeline.

The constraint?
The customer could not shut the line down.

Anyone who has worked around gas transmission lines understands the physics at play.

A cool gas line operating in a warm, humid coastal environment like Veracruz is practically guaranteed to sweat. Once the deteriorated coal tar epoxy was removed, significant condensation formed on the pipe surface.

That immediately eliminated several conventional recoating options:

• Traditional two-part epoxies

• Standard liquid paints

• Systems requiring abrasive blasting and a defined anchor profile

These products demand dry surfaces and controlled conditions. This project had neither.

The solution would need to be:

• Water tolerant

• Able to displace moisture

• Applied without complex equipment

• Installed safely on an active line

The Approved Solution: Stopaq Wrappingband WSH

The system submitted—and ultimately approved—was Stopaq Wrappingband WSH.

WSH is a fascinating viscoelastic coating technology designed specifically for difficult surface conditions.

Why It Worked

1. Water Displacement Technology
WSH actively displaces surface moisture during application. Instead of fighting condensation, it works with it—pushing water away from the steel and bonding directly to the substrate.

2. Minimal Surface Preparation
The pipe surface only needed to be free of loose materials.
No abrasive blasting.
No anchor profile requirement.

3. Simple Application
The system is applied by hand.
No plural-component pumps.
No spray rigs.
No specialized curing equipment.

Hand tension is all that’s required when installing the outerwrap.

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The Result

• No shutdown

• No production loss

• No sandblasting

• No complex logistics

Just a practical, field-applied solution that restored corrosion protection while the line remained fully operational.

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Projects like this highlight an important lesson: sometimes the right solution isn’t the most complicated one. It’s the one designed for the real-world conditions you’re actually facing.

In Veracruz, that meant choosing a coating system that could handle moisture, humidity, and live operation—without compromise.

 

Seal for Life Casing Seals & Flange Seals: Proven Protection for Challenging Applications

    

When it comes to protecting critical pipeline components, some applications simply refuse to cooperate. Off-center carriers. Large sizing disparities.

That’s where Seal for Life (formerly Raychem) Casing Seals and Flange Seals truly shine.

These aren’t just “wraps.” They’re engineered sealing systems designed to solve real-world field challenges.

Key Advantages:

• Fiber-reinforced, multi-layer heat shrink backing

• Integrated fiber mesh layer for enhanced penetration resistance

• Coated with a very aggressive mastic sealant

• Works even when the carrier pipe is not centered inside the casing

• Approximate 66% shrink ratio

That high shrink ratio is critical. It allows the material to conform across a wide range of casing-to-carrier pipe diameter ratios — without sacrificing seal integrity.

The aggressive mastic flows into irregularities, filling voids and creating a durable moisture barrier. The fiber reinforcement provides mechanical strength to resist damage and environmental stress.

The result? A reliable seal in one of the most challenging spots on a pipeline.

From the Jungle to the Jobsite: Raychem LTPS in Iquitos, Peru (1975)

 Get your passports ready — we’re heading to Iquitos, Peru, July 1975.

The project? A 24” crude oil pipeline.
The setting? Deep in the Amazon.
The timing? Right at the beginning of a coating revolution.

When this line was being built, Raychem’s pipeline division was barely two or three years old. The division really began gaining traction around 1972–1973, meaning this Peru project happened while the market was still very much in its infancy.

At the time, traditional field joint protection methods like:

• Cold-applied tape

• “Granny ragging”

• Other hand-applied systems

were the norm.

And then came heat-shrink technology.

Raychem’s LTPS (Large Tubular Pipe Sleeves) were quickly becoming a serious disruptor. For many contractors, this was their first exposure to a system that combined:

• Factory-engineered consistency

• Strong technical performance

• Faster, more predictable application

• Improved long-term corrosion resistance

Compared to traditional methods, tubular shrink sleeves offered something different: engineered performance rather than improvised craftsmanship in the ditch.

(And yes — if you’re still a believer in granny ragging as the pinnacle of technical achievement, we can respectfully agree to disagree.)

It’s important to remember where we are in the timeline.

In 1975, Raychem had not yet introduced the wraparound shrink sleeve. That innovation was still about a year away. At this stage, LTPS products were slipped over the pipe before welding — a method that required planning but delivered strong, uniform protection once installed and shrunk.

The wraparound sleeve would eventually change field joint coating logistics forever. But in Iquitos, tubular sleeves were already proving that heat-shrink technology could compete — and win — against legacy systems.

Projects like this 24” crude oil line in Peru weren’t just installations — they were proving grounds.

They demonstrated that:

• Heat-shrink sleeves could perform in challenging environments.

• Application speed could improve without sacrificing technical performance.

• Innovation in field joint coatings was not only possible — it was necessary.

In 1975, the pipeline coating market was just beginning to evolve. What seemed disruptive then is now standard practice.

And it all happened one joint at a time — even in the middle of the Amazon.