ARALDITE® Through Time: The Epoxy That Changed Industry

Ever picked up a tube of epoxy and wondered about its story? In this captivating episode of Adhesion Matters, we trace the remarkable journey of ARALDITE®—a pioneering adhesive with over 70 years of legacy, from aerospace beginnings to global industrial legend.

What You’ll Explore:

• From Aero Research to Global Reach
  Discover how ARALDITE® was born in 1946 through Aero Research Limited in the UK and Ciba AG in Switzerland—and how it became synonymous with strength, precision, and durability in epoxy bonding.
• Beyond the Bond: A Marketing Masterstroke
  The brand’s fame wasn’t built on chemistry alone. Remember the iconic Ford Cortina billboard that showcased ARALDITE®’s unbreakable bonds by gluing a car in place? That stunt turned everyday glue into unforgettable marketing.
• Engineering Achievements in Tough Environments
  ARALDITE® isn’t just strong—it’s been trusted in landmark projects from the structural marvel of pre-cast concrete at Coventry Cathedral and the Sydney Opera House, to lightweight composite assemblies in the Lamborghini Aventador and ballistic-grade armor.
• More Than Just Strength: Sustainability & Safety Forward
  The brand evolves with the times—like when Huntsman advanced ARALDITE® with low-odor, non-flammable, primer-free structural adhesives that also cut production time and boost operator safety.

Why It Matters:

This episode isn’t just a history lesson—it’s a journey into how one adhesive brand helped shape modern industry. From engineering innovation to marketing brilliance, and now next-gen sustainable performance—ARALDITE® offers a window into how chemistry and strategy together build legacy.

Transcript

Lucas Adheron 0:00

Have you ever really thought about that tube of glue sitting in your drawer? Or maybe like the unsung heroes holding together something really advanced like a supercar? Today, we're doing a deep dive into Erroldite, and it's way more than just your average household adhesive.

Elena Bondwell 0:19

Absolutely. It's a brand with this incredibly rich, quite complex history, actually, and a truly surprising range of uses.

Lucas Adheron 0:26

And a masterclass in marketing, too, as we'll see.

Elena Bondwell 0:28

Definitely. So for this deep dive, we've pulled together quite a bit of material, historical records, market analysis, detailed product info, distribution insights, even their latest innovations. And our mission, really, is to uncover the whole journey of this pioneering adhesive, you know, from its sort of dual origins right up to its role in modern engineering and future tech.

Lucas Adheron 0:50

You'll see how it delivers those unbeatable and long-lasting bonds.

Elena Bondwell 0:53

Exactly. And how the brand has managed to adapt and, well, really thrive for over 70 years now. It's quite a story.

Lucas Adheron 1:00

So let's kick things off with the origins. How did eraldite even come to be? It started in Switzerland, right? 1946.

Elena Bondwell 1:06

That's part of it. Yes. The initial push for a superior epoxy technology, something very better than existing glues. That happened in Switzerland in 46. Okay. But here's where it gets interesting. The actual conceptual development, that was spearheaded earlier by Arrow Research Limited, ARL, in the UK. They started back in 1934. Ah, so

Lucas Adheron 1:26

ARL, Arrow Research Limited.

Elena Bondwell 1:29

Precisely. And get this, the name Araldite, it comes directly from that. ARL-ledite, Araldite.

Lucas Adheron 1:34

Okay, that makes sense. So UK concept, Swiss production initially.

Elena Bondwell 1:38

Kind of. De Trey Frere's SA in Switzerland first produced the resin. Then they licensed the process to Siba AG. Siba.

Lucas Adheron 1:45

Thank you. And

Elena Bondwell 1:46

Siba first showed off a product called Eroldite at the Swiss Industries Fair. That was 1945. But the first batches of the epoxy resins, the ones that really launched the brand globally, those were made in Duxford, England in 1950. So you have this interplay between the U.K. development and the Swiss commercialization and then U.K. production ramping up.

Lucas Adheron 2:05

That really set the stage for its global reach, I suppose.

Elena Bondwell 2:09

It absolutely did. That foundational groundwork was key.

Lucas Adheron 2:12

That clarifies something important, doesn't it? That common misconception.

Elena Bondwell 2:15

Ah, the de Havilland mosquito myth.

Lucas Adheron 2:17

Yes. People think aerolite was used on the mosquito plane in the 40s, but no.

Elena Bondwell 2:21

No, that was aerolite. Also from ARL, the same UK developer, but a totally different glue, a urea formaldehyde adhesive.

Lucas Adheron 2:31

OK, crucial difference. So Araldite, its big deal was being a true epoxy resin, a technological step up.

Elena Bondwell 2:38

Exactly. Its introduction was revolutionary. It brought this advanced epoxy tech to the market, delivering bonding strength that was just, well, miles ahead of what was available.

Lucas Adheron 2:47

Fulfilling that promise, unbeatable and long lasting bonds.

Elena Bondwell 2:51

And it's been doing that for over 80 years now for, you know, DIY folks and massive industrial clients alike. Ultimate epoxy strength.

Lucas Adheron 2:59

And it didn't take long for it to prove itself in some really demanding situations. I mean, really high stakes.

Elena Bondwell 3:03

Oh, yeah. Some iconic early examples.

Lucas Adheron 3:05

Like the Bluebird project in 1960. Donald Campbell's land speed record car. Haroldite bonded the fuselage.

Elena Bondwell 3:11

That's right. Talk about extreme conditions if it holds that together.

Lucas Adheron 3:15

Shows incredible reliability. And then there's architecture. Oh, Arup, the famous engineer.

Elena Bondwell 3:20

Yes, a real visionary. He saw the potential early on.

Lucas Adheron 3:24

Using it in Comtree Cathedral. For bonding precast concrete.

Elena Bondwell 3:29

Secured the thin joints of the columns and fins, but maybe even more famously.

Lucas Adheron 3:33

The Sydney Opera House.

Elena Bondwell 3:34

Exactly. Bonding the rib sections of those massive shells. It drastically sped up construction because they didn't need that 24-hour curing time you'd get with traditional concrete joints. Wow.

Lucas Adheron 3:46

So what's the takeaway from these early successes?

Elena Bondwell 3:49

Well, the fascinating thing is how these projects, highly visible, technically really tough, served as incredibly powerful real-world proof.

Lucas Adheron 3:58

Like instant credibility.

Elena Bondwell 3:59

Totally. It immediately established Erroldite not just as a glue, but as a high-performance adhesive for serious industrial and engineering work, way beyond just fixing things at home.

Lucas Adheron 4:09

That strong foundation really paved the way, didn't it?

Elena Bondwell 4:12

It absolutely did. Give it immense credibility right from the start.

Lucas Adheron 4:15

Now let's talk about the corporate side, because that's a bit of a journey too. It started with Siba AG.

Elena Bondwell 4:20

Right. Araldite was a key part of Ciba, which became one of the world's top three epoxy producers pretty quickly after getting that license.

Lucas Adheron 4:29

And Ciba then became Cibigegi.

Elena Bondwell 4:31

Yes. Then fast forward to the late 1990s, Ciba's epoxy business gets spun off and sold.

Lucas Adheron 4:37

OK.

Elena Bondwell 4:38

And eventually it becomes part of Huntsman Corporation, the U.S.-based chemical company.

Lucas Adheron 4:43

So Huntsman now holds the Araldite trademark.

Elena Bondwell 4:46

Yeah.

Lucas Adheron 4:46

For the engineering and structural adhesives, at least.

Elena Bondwell 4:49

That's correct. They manage that comprehensive range for industrial applications.

Lucas Adheron 4:54

But then there was another split more recently.

Elena Bondwell 4:56

Right. This raises a good question. Why split up a successful brand? In 2020, Huntsman made a strategic move. What was that? They sold off Araldite's DIY consumer adhesives business, but only in certain regions, India, the Middle East, Africa, and the Aegean countries.

Lucas Adheron 5:12

Sold it to whom?

Elena Bondwell 5:13

To Pitalite Industries.

Lucas Adheron 5:15

Oh, Pitalite. They're huge in those markets, aren't they?

Elena Bondwell 5:17

Exactly. This wasn't about Araldite being weak. It was... is actually quite shrewd. Leverage Piddalite's local expertise and distribution for the consumer side.

Lucas Adheron 5:25

While Huntsman keeps its focus on the high performance global industrial stuff.

Elena Bondwell 5:29

Precisely. A strategic division of focus.

Lucas Adheron 5:32

So what does this whole corporate roller coaster tell us?

Elena Bondwell 5:36

I think it really shows the brand's resilience. Despite all these changes in ownership, different market focuses, Erroldite hasn't just survived for over 70 years. It's thrived.

Lucas Adheron 5:47

Demonstrates the enduring value of that core promise, I suppose.

Elena Bondwell 5:50

Absolutely. The technology and the performance have remained central.

Lucas Adheron 5:53

OK, let's look at Aerodyne's footprint today. It's pretty diverse.

Elena Bondwell 5:57

It really is. The core under Huntsman is that range of engineering and structural adhesives, epoxies, acrylics, polyurethanes, high performance stuff for bonding metals, composites, thermoplastics, you name it.

Lucas Adheron 6:12

Delivering benefits across industrial, consumer, even construction markets. And where does it actually show up? I mean, the high profile uses are They're fascinating.

Elena Bondwell 6:19

They really are. Think automotive. It's critical in the Lamborghini Aventador.

Lucas Adheron 6:23

The carbon composite monocoque shaft.

Elena Bondwell 6:25

Yeah. And the Audi R8's carbon side blades. Even things like railway carriage door frames helping with light weighting and efficiency.

Lucas Adheron 6:34

And construction.

Elena Bondwell 6:34

Yeah.

Lucas Adheron 6:35

We mentioned Sydney, but more recent examples.

Elena Bondwell 6:38

The dome of the Tor Agbar in Barcelona used eraldite too.

Lucas Adheron 6:41

Okay. Aerospace? Defense.

Elena Bondwell 6:44

Yep. Used in advanced body armor ballistic protection in various aircraft components. Again, helps streamline production, reduce weight. Critical factors there.

Lucas Adheron 6:53

Electronics, too. That seems different.

Elena Bondwell 6:54

It is. Used as an embedding medium for electron microscopy. Also inside mobile phones, protecting delicate components.

Lucas Adheron 7:01

And marine applications. It can't cure underwater.

Elena Bondwell 7:03

That's a unique capability, yes. So it's great for marine repairs. And it was used in building the Silvestris 23, that aluminum speedboat.

Lucas Adheron 7:11

Wow. But what's really striking is the sheer versatility. You go from these massive industrial uses.

Elena Bondwell 7:18

Right, like bonding a supercar.

Lucas Adheron 7:19

Yeah, to some surprisingly niche applications. This is where it gets really interesting. With the

Elena Bondwell 7:23

guitarists.

Lucas Adheron 7:24

Yeah. Flamenco guitarists, Paco Pena, for example, using it to reinforce their fingernails.

Elena Bondwell 7:29

It's true. The strength and the ability to shape it, presumably.

Lucas Adheron 7:32

And Brian May from Queen. Using eraldite on his famous red special guitar.

Elena Bondwell 7:37

To seal the pickups, yeah. To reduce microphonic feedback, it just shows.

Lucas Adheron 7:41

It shows incredible adaptability, doesn't it? From huge engineering feats to these tiny, crucial details.

Elena Bondwell 7:47

Exactly. That dichotomy illustrates how its properties can be customized for almost any scale or need. It's not just strong, it's adaptable.

Lucas Adheron 7:56

So let's unpack that a bit. Eraldite isn't just acting as glue in the traditional sense. It's more fundamental.

Elena Bondwell 8:01

It really is a foundational technology. Its ability to bond bond different materials together, metals to composites, plastics to metals. That's huge for modern design.

Lucas Adheron 8:11

And the high temperature resistance you mentioned.

Elena Bondwell 8:12

Also critical. It makes multi-material designs feasible where they wouldn't be otherwise. Think lighter cars, stronger planes.

Lucas Adheron 8:19

So choosing adhesives like eraldite over, say, rivets or welds, it can genuinely change the game in how products are designed and built.

Elena Bondwell 8:28

Absolutely. It enables lighter, stronger, more durable products. It opens up design possibilities.

Lucas Adheron 8:34

Okay. Shifting So shifting gears a bit, we have to talk about the marketing, because some of Erroldite's campaigns are legendary.

Elena Bondwell 8:40

Oh, definitely. The Ford Cortina billboard from 1983. That

Lucas Adheron 8:44

one is just iconic.

Elena Bondwell 8:46

Yeah.

Lucas Adheron 8:46

A real Ford Cortina stuck to a billboard in London, apparently just by Erroldite.

Elena Bondwell 8:51

Seemingly. Of course, there were hidden safety belts. You couldn't risk it actually falling. But the visual. Wow.

Lucas Adheron 8:58

instantly grabs your attention. A masterclass.

Elena Bondwell 9:00

And the strategy behind it is fascinating. Basically, extreme equals attention and demonstration equals believable.

Lucas Adheron 9:08

It didn't just say it was strong.

Elena Bondwell 9:10

It showed you, visually proved it. Leaves no room for doubt, does it? Way more powerful than just quoting strength figures.

Lucas Adheron 9:17

And the tagline, that was genius too.

Elena Bondwell 9:19

The contrast, right. This incredible dramatic image of a car stuck to a billboard.

Lucas Adheron 9:24

Paired with, it also sticks handles to teapots.

Elena Bondwell 9:26

That little bit of humor, that change of direction, it made the whole thing so memorable and relatable. It connected the extreme strength back to everyday uses.

Lucas Adheron 9:34

Bridging the industrial and the domestic. No wonder it won awards.

Elena Bondwell 9:37

D&AD awards, yes, in 83 and 84. Very prestigious.

Lucas Adheron 9:41

And the campaign wasn't just a one-off poster, was it?

Elena Bondwell 9:44

No, they phased it cleverly, built a narrative. The first poster was up for just a week to generate maximum buzz, make the brand feel bigger than its budget.

Lucas Adheron 9:53

Create that mental availability.

Elena Bondwell 9:54

Exactly. Then follow-up posters played on it, like one with a ripped hole asking, how did we pull it off, kept people talking.

Lucas Adheron 10:01

Brilliant. And this fits into a longer pattern of clever marketing, doesn't it?

Elena Bondwell 10:06

It does. Heraldite has often used demonstration and sometimes humor. There was a publicity stunt back in 1965, a funny TV ad in 81 saying, look, no hands.

Lucas Adheron 10:17

And? And real-world proof always helps. Like that story about the customer still using tubes from 1971.

Elena Bondwell 10:22

Testimonials like that are gold. And, of course, all those high-profile engineering projects we mentioned, Bluebird, Sylvester's 23, Tor Agbar, they served as fantastic indirect marketing, too. Real-world proof of performance.

Lucas Adheron 10:36

Okay, so where is Heraldite heading now? What's the future look like under Huntsman?

Elena Bondwell 10:41

Well, the focus is clearly on those high-performance engineering adhesives, and they're bringing out some interesting new products. There's Eroldite 2023. It's designed for really tough joining and sealing, especially on large parts. Good for vertical surfaces because it doesn't sag, fills gaps well.

Lucas Adheron 10:57

Sounds useful for complex assemblies, maybe with different materials.

Elena Bondwell 11:00

Exactly. And then there are Eroldite 2080 and 2081. These are low-odor, non-flammable acrylic adhesives.

Lucas Adheron 11:08

Ah, safer to work with.

Elena Bondwell 11:09

Big advantage. high strength and durability, especially for metals, composites, plastics. They're aiming to replace older MMA and polyurethane adhesives that had, well, some issues.

Lucas Adheron 11:21

And these new adhesives, they must be crucial for emerging areas, right? Like electric vehicles.

Elena Bondwell 11:26

Absolutely critical. Think about e-mobility, improving performance in motors, batteries, even the charging infrastructure. These materials are essential.

Lucas Adheron 11:34

And lightweighting is key for EVs and potentially hydrogen vehicles too.

Elena Bondwell 11:39

Definitely. Lighter vehicles mean better better range, less environmental impact. Adhesives like these enable that lighter construction. They're helping establish hydrogen as a potential future fuel source, too, indirectly.

Lucas Adheron 11:50

So how do these advanced products actually get into the hands of engineers and manufacturers?

Elena Bondwell 11:55

Through Huntsman's distribution network. They have key partners globally, like Bodo Möller Chemie .

Lucas Adheron 12:01

Bodo Möller Chemie, you mentioned them. They have a long relationship with Huntsman.

Elena Bondwell 12:05

Over 30 years, they distribute araldite pretty much worldwide from over 40 locations. And they're not just They position themselves as solution providers. They have deep technical knowledge.

Lucas Adheron 12:15

Right. Providing expertise along with the product. And I understand they're involved in some cutting-edge curing technology, too. Something called BTDA.

Elena Bondwell 12:23

Ah, yes. Pyromolytic Tetracarboxylic Dianhydride. BTDA. It's a novel curing agent for epoxy resins.

Lucas Adheron 12:31

Okay. Sounds technical. Why is it a big deal? What does it actually do?

Elena Bondwell 12:35

Basically, it dramatically improves how well the epoxy performs, especially under heat. Well, think about the glass transition temperature, the TG. That's where a material goes from glassy and rigid to more rubbery. With standard curing agents, an epoxy might hit a TG of, say, 125 degrees C, maybe 180 degrees if it's a good one. But using BTBA with certain epoxies, like bisphenol A epoxy, you can push that TG Up close to 240 degrees C.

Lucas Adheron 13:04

Wow, that's a huge jump. What does that mean in practical terms?

Elena Bondwell 13:07

It means the adhesive stays strong and stable at much higher temperatures. It allows for extremely high cross-linking in the polymer structure.

Lucas Adheron 13:15

Leading to?

Elena Bondwell 13:16

Outstanding thermomechanical properties. Much better durability. Essentially, materials and components made with it last longer perform better under stress.

Lucas Adheron 13:25

Which links back to sustainability, right? Making things last longer.

Elena Bondwell 13:28

Better durability means longer product lifetime, which is a key aspect of sustainability. So this innovation directly contributes to that.

Lucas Adheron 13:35

So summing up Erroldite's journey. It's really gone from this pioneering epoxy to a globally trusted brand. Quite the evolution.

Elena Bondwell 13:43

Its adaptability is key from supercars to guitar strings, as we said. Diverse applications, iconic marketing. It's built an enduring legacy.

Lucas Adheron 13:52

And the future seems pretty solid, too.

Elena Bondwell 13:53

I'd say so. Under Huntsman, it's strategically positioned for continued leadership in material science, especially with lightweighting bonding to similar materials, crucial for fields like e-mobility, advanced electronics.

Lucas Adheron 14:06

And the Piddalite partnership comes the consumer side in key growth regions.

Elena Bondwell 14:10

Right, ensures continued reach there too.

Lucas Adheron 14:12

So the final thought for you, our listener, next time you grab that tube of eryldite, Maybe to fix a mug.

Elena Bondwell 14:19

Or maybe you see a really sleek, lightweight car zip past.

Lucas Adheron 14:23

Just consider this. That same fundamental bonding technology, that incredible strength, it might just be holding together the future of transportation.

Elena Bondwell 14:32

Proving that sometimes the biggest advancements are, well, literally holding our world together, one incredibly strong bond at a time.