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Introducing ISO-COAT® – World’s First Anti-Corrosion Seal for Guitar & Instrument Cables

Thomas Welladsen — Fri, 06 Sep 2024 20:36:00 +1000

A New Standard in Guitar Cable longevity

( UPDATE - Patent Granted 26.6.2025 !! )

Hermetic sealing method for audio circuits

ISO-COAT® is now protected by

- Australian Standard Patent No. 2024204464

- International Patent Pending Application No. PCT/AU2024/050220

When Voltage Cable Co. first introduced ISO-COAT® technology to the guitar cable market in September 2024, it soon became a game-changer. For decades, guitarists worldwide have struggled with a common problem - cable failure.

Cable failure due to oxidation, moisture, and environmental wear has plagued guitarists, affecting their sound and reliability. We've had enough of dead cables.

From humble beginnings — as Voltage Cable Co.® started to establish itself, my team and I made a very clear decision: to set a new standard for what durability is and means, and to manufacture guitar cables that are not only inspiring to use, but that actually last a lifetime.

What truly matters to us is that you, the artist, receive a product that can stand the test of time, a product we can back with 100% confidence. We want our customers to focus on playing, not worrying about gear failure. That’s why our attention has been on developing the best-sounding, reliable guitar cables money can buy.

Let’s break it down ↓

Why Most Guitar Cables Fail

For the last 4 years in our little workshop in Sydney, we have been working tirelessly diagnosing, developing, testing, and innovating our way to a solution for this decades-old, industry-known problem we all know as cable failure.

Guitar cables, mic cables, speaker cables and instrument cables are all vulnerable to corrosion at the solder terminations. Over time, exposure to moisture, sweat, and humidity causes oxidation, leading to signal degradation, tone loss, and ultimately, cable failure. Musicians are often forced to replace their cables frequently, affecting their performance, wallet and not to mention the environmental impact.

This is where put our stake in the ground as an Australian company. Our innovative ISO-COAT® hermetic seal sets a new standard in the industry. We protect against corrosion and seal your cable so it lasts significantly longer than anything else available today. We back our cables with a lifetime warranty.

What Makes ISO-COAT® so Unique?

ISO-COAT® hermetically seals the entire cable assembly, preventing oxidation, corrosion, and atmospheric attack. The leading causes of signal loss, sonic degradation, and instrument cable failure.

With our patent-pending manufacturing process, we have redefined what durability means in the guitar cable industry. This isn’t just a tweak to existing designs—it’s a completely new standard of reliability and performance. My team and I are really proud to now be releasing our Australian hand made guitar cables with ISO-COAT.

Designed for any gig, any climate, anywhere, we can proudly say this is our stake in the ground as a boutique Australian company stepping up to deliver guitarists of the world a product that actually does what it says on the box.

Every guitar cable leaving our warehouse in Sydney now comes protected with ISO-COAT® and a hand-stamped wax seal authenticity card symbolising our guarantee and innovative method.

Now lets talk about corrosion ↓

The Truth About Corrosion: How ISO-COAT® Protects

Understanding the effects of corrosion and oxidation is crucial for preserving cable performance and longevity.

Corrosion occurs when materials deteriorate through chemical reactions with environmental elements.
Oxidation happens when metal reacts with oxygen, forming metal oxides.

In cables, corrosion often appears as discolouration or a crusty green/white buildup on the connectors. See the big photo above !

Both processes compromise functionality, reliability and ultimately, your sound quality.

Corrosion physically weakens the metal connectors, making them brittle and prone to breakage. This leads to poor electrical connection, signal loss, and interference.

Corrosion severely impacts guitar cables in multiple ways:

Connector Weakness: Corroded connectors become brittle, snapping or bending easily, causing failures.
Electrical Resistance: Corrosion creates resistance in the signal path, causing weak or intermittent signals.
Introduced Noise: Buzzes and hums creep into your signal chain, masking the clarity and richness of your tone.
Tonal Degradation: Dynamic range drops, nuances vanish, making it harder to achieve subtle, expressive sounds.

Some products on the market claim to offer protection against corrosion, but none offer the complete hermetic seal that ISO-COAT® provides. This isn’t a superficial coating or a temporary fix, it’s a structural, air-tight solution designed to permanently safeguard solder terminations and cable assemblies from the inside out.

ISO-COAT® technology is backed by extensive research and development, resulting in a patent-pending process that’s exclusive to Voltage Cable Co. We don’t just fight corrosion, we’ve prevent it.

Unlike simple external “coatings,” ISO-COAT® uses a true hermetic sealing method inside the cable’s critical points. Don’t be fooled by imitations or false claims, without a hermetic seal, corrosion can and will happen. Destroying your cables from the inside out leading to eventual failure.

Check out the anti-corrosion myths — READ HERE!

Innovating Since 2021

My team and I have been working on this for a few years, actually since late 2021. When Voltage Cable Co. introduced ISO-COAT® to the market in September 2024, we knew it would change the ideas of what longevity is for guitar cables and how companies approach this matter. To us, it's one of the most important things when it comes to cables and guitar gear.

As the first and only company to use this hermetic sealing technology, we’ve led the industry in true anti-corrosion solutions and will continue to develop further enhancements for longevity and tone.

Dielectric vs. Hermetic

Most guitar cables rely on traditional dielectric insulation to protect the conductor, but this only solves half the problem. While dielectric materials or coatings insulate the conductor from electrical interference, they do nothing to prevent corrosion at the solder joints—one of the primary reasons guitar cables fail over time.

Traditional Dielectric:

Provides electrical insulation but does not seal out moisture, air, or contaminants.
Leaves solder joints vulnerable to oxidation and corrosion, leading to signal degradation and cable failure.

Hermetic Sealing ISO-COAT®:

Completely seals the solder joints and cable assembly, creating an airtight barrier that prevents corrosion.
Blocks moisture, oxygen, and contaminants from reaching the solder, ensuring long-lasting performance.

Patented Advantage:

Unlike standard dielectric solutions, ISO-COAT® uses a patented hermetic sealing process exclusive to Voltage Cable Co., setting a new industry standard for guitar cable durability and reliability.

ISO-COAT® is not just another insulated cable—it’s the only true anti-corrosion seal on the market backed by a standard Austrlaian Patent.

The Future of Guitar Cable Durability

At Voltage Cable Co., we’re strongly committed to innovation. ISO-COAT® is just the beginning. As we continue to develop new technologies and designs, our promise remains the same. To end cable failure.

For guitarists who demand genuine lifetime durability from their gear and consistent connection to their music, Voltage Cable Co. is here to provide that small but crucial link between the artist and the expression - A premium reliable guitar cable.

Check out our flagship coiled guitar cables

Designed to be played, built for a lifetime®

Why Most “Anti-Corrosion” Methods Fail for Guitar Cables

Thomas Welladsen — Tue, 01 Oct 2024 21:02:00 +1000

Why Most “Anti-Corrosion” Methods Fail for Guitar Cables – The Truth Behind Cable Protection

ISO-COAT® press release

The guitar cable industry is full of bold claims about anti-corrosion protection. But here’s the truth—most so-called “anti-corrosion” solutions are nothing more than marketing structural claims. If you’ve ever had a guitar cable fail at the worst possible moment, you’ve experienced the reality: standard coatings like heat shrink and dielectric insulation don’t actually protect cables and copper from corrosion.

At Voltage Cable Co., we’ve seen through the myths and developed a patent-pending solution that truly solves the problem. In this article, I’m going to break down the misconceptions, the myths, the whys and the hows.

I’ll explain why our innovative ISO-COAT® seal is the only real anti-corrosion technology that lasts.

Our handmade coiled guitar cable lineup, featuring ISO-COAT® technology, prevents these issues and keeps your tone alive for years.

No more replacing guitar cables!!

Myth 1: Surface Coatings and Heatshrink Are Enough

One of the most common claims is that surface coatings or heat shrink tubing can prevent corrosion.

The truth? They’re just temporary fixes.

These “coatings” might protect the cable’s exterior, and heat shrink may provide added insulation, but neither protects the solder joints inside where corrosion actually begins. Moisture, humidity, and oxidation still seep in, causing corrosion over time.

Heat shrink tubing is designed for structural integrity and insulation, not for sealing out contaminants. It may cover the solder joint, but it doesn’t create an airtight seal. Over time, moisture finds its way in, leading to oxidation and signal degradation.

Unlike these superficial solutions, ISO-COAT® uses a patent-pending hermetic sealing process that completely seals the solder terminations and copper, blocking moisture and contaminants from reaching the metal.

This isn’t just protection—it’s permanent prevention.

Myth 2: Dielectric Insulation Prevents Corrosion

Dielectric materials are widely used to insulate cables, but they only serve to electrically insulate the conductor—they do not protect solder joints or copper from corrosion unless you’re hermetically sealing.

Dielectric insulation or subpar non-hermetic coatings are designed to prevent electrical interference, not to block moisture or oxidation.

This is where ISO-COAT® makes all the difference.

By hermetically sealing the solder joints, ISO-COAT prevents corrosion at the source. It’s not just insulation; it’s a protective barrier that ensures your cable lasts a lifetime.

The Only Solution: Hermetic Sealing

While other brands rely on subpar coatings and dielectric materials, Voltage Cable Co. uses a patent-pending hermetic sealing technology that completely encapsulates the solder terminations and cable assembly.

This creates an airtight barrier that blocks out moisture, air, and contaminants—permanently preventing corrosion.

ISO-COAT® isn’t just another insulated cable. It’s the only true anti-corrosion solution on the market.

By using hermetic sealing, we’ve created a cable designed to handle the elements and tough touring schedules our artists throw at them.

Accept No Imitations

As the first and only brand to offer this patent-pending technology, Voltage Cable Co. is leading the industry in anti-corrosion solutions.

Others may try to imitate, but only ISO-COAT is built with hermetic sealing for unmatched durability and performance.

Don’t be fooled by industry myths or knockoffs. Discover why ISO-COAT® is the only real solution to corrosion for guitar and instrument cables.

This is exactly why we built a silver soldered guitar cable with an ISO-COAT® patented seal, explore the Voltage Vintage Coil® V2.

Designed to be played, Built for a lifetime®

The Science Behind ISO-COAT® – Hermetic Sealing

Thomas Welladsen — Fri, 15 Nov 2024 00:00:00 +1100

What is Hermetic Sealing?

Let’s get into the science shall we? Hermetic sealing is a method of creating an airtight barrier that prevents moisture, oxygen, and contaminants from penetrating a sealed environment. Originally developed for critical applications in aerospace and electronics, hermetic sealing has now found its way into the music world through ISO-COAT® by Voltage Cable Co.

This isn’t just another layer of insulation or surface coating—it’s a structural solution designed to permanently safeguard the most vulnerable part of any guitar cable: the solder terminations and cable assembly.

By hermetically sealing these places, ISO-COAT® prevents corrosion, ensuring pure, consistent tone for the life of the cable.

ISO-COAT® Press Release Patetned Seal Announcement

Why It Matters for Guitar Tone

Guitar cables live in harsh environments. From sweaty stage floors to humid practice rooms, cables are constantly exposed to moisture and oxygen, leading to corrosion at the solder joints. Over time, this corrosion causes signal degradation, crackling sounds, and ultimately, cable failure.

Traditional anti-corrosion methods, like dielectric insulation and heat shrink tubing, simply don’t seal the solder joints or cables. They might provide electrical insulation or structural integrity, but they leave the solder joints exposed to the elements.

This is where ISO-COAT® stands on its own.

The ISO-COAT® seal

Unlike conventional methods, ISO-COAT uses a patent-pending hermetic sealing process that completely encapsulates the solder joints.

This airtight barrier blocks out moisture, air, and contaminants, preventing corrosion at the source.

The result?

A guitar cable that maintains its signal integrity and tone consistency for years, regardless of the environment.

Whether you’re playing in a humid basement or on a sweaty stage, ISO-COAT ensures your signal stays true.

Why Nothing Else Compares

Heat Shrink Tubing:

Provides insulation but doesn’t create an airtight seal. This allows moisture to penetrate over time.

Dielectric non-hermetic coatings:

Electrically insulate but don’t block oxygen or contaminants from reaching the copper.

Surface Coatings:

Wear off with use, leaving terminations exposed to corrosion. This also applies to the copper.

Only a hermetic seal offers complete protection, ensuring lifetime durability and consistent signal quality.

A New Standard for Guitar Cables

With ISO-COAT, Voltage Cable Co. has brought aerospace-level protection to the world of guitar and instrument cables. This isn’t just an improvement; it’s a new standard in guitar cable longevity.

We’re not just fighting corrosion, we’ve preventing it.

Discover the worlds first & only hermetic seal for coiled guitar cables

How to Create Vintage Guitar Tones Without Spending $30,000

Thomas Welladsen — Tue, 10 Dec 2024 00:30:00 +1100

How to Recreate Vintage Guitar Tones Without Spending $30,000

I've gotta update the title, I think I need to replace $30,000 for $70,000..

The cost of living sucks at the moment, and not being able to scrape the shrapnel together for that 1960 Ash blonde Stratocaster hits pretty hard. I was nearly there.. only $68,000 to go.

Even the cost for any custom shop style guitars from the big names is nuts. We can still buy pedals and accessories though.. some fun can still be had! Now in 2025, who knows what the tariffs will do for our American friends and their amazing guitar brands.

Why do they relic, do y'all like em? - I'm for it, only slightly. The Murphy Lab stuff is dope. The price of a small corolla but still dope.

Why do we like old things in general? - Even more so when it comes to guitars and replicating old sounds. I guess it's the music we love and all grew up with.

Vintage guitar tones carry a certain magic—warm, open, and dynamic. They defined the sound of rock, blues, and jazz in the 60s and 70s, shaping the music of legends like Jimi Hendrix, Eric Clapton, and Jimmy Page. These tones were achieved with tube amplifiers, analog effects, and carefully selected guitars, often running through long coiled cables that subtly shaped the sound.

However, getting your hands on original vintage gear today can cost upwards of $30,000—far from accessible for most players and me... Thankfully, modern advancements in guitars, amps, pedals, and even cables allow players to capture these legendary tones without breaking the bank.

In this guide will break down how to recreate classic guitar sounds using modern, affordable gear while maintaining the tonal characteristics that defined decades.

The Voltage Vintage Coil® is a tour-ready, vintage-style guitar cable built to capture real 60s tone with modern guts.

Step 1: The Foundation of Vintage Tone

A vintage sound isn’t just about gear—it’s about how the gear interacts. Tube amplifiers, single-coil or PAF-style humbucking pickups, analog pedals, and the right cable choice all contribute to the tone. One often overlooked element is the guitar cable itself.

A small but crucial link and I promise there won't bee too many shameless plugs here.

Our Voltage Vintage Coils® replicate the tonal characteristics of the coiled cables used by legends, subtly rolling off harsh highs and enhancing midrange warmth without excessive capacitance loss. There, no more plugging the cables.

Read this blog for all coiled cable love and happiness : The Best Coiled Guitar Cables & How They Help Recreate Vintage Guitar Tones

Step 2: Choosing the Right Guitar

Guitar choice plays a critical role in achieving a vintage tone. Classic models like the Fender Stratocaster, Gibson Les Paul, and Gretsch hollow-body guitars were the backbone of many legendary recordings. While vintage originals are expensive, modern reissues and boutique alternatives capture the same tonal characteristics.

Key factors to consider:

Pickups: Single-coils (Strat, Tele) offer clarity and chime, while humbuckers (Les Paul, SG) deliver warmth and sustain.
Tonewoods: Alder and ash provide a bright, resonant sound, while mahogany produces a thicker, richer tone.
Neck & Fingerboard: A rosewood fingerboard can soften attack, while maple provides a sharper, more defined sound.

Step 3: The Right Amplifier for the Job

The valve amp is where much of the magic happens. Vintage guitarists relied on tube amplifiers to shape their tone. Brands like Fender, Marshall, and Magnatone produced amps that became legendary for their warmth, breakup, and dynamic response.

Budget-Friendly Vintage-Style Amps:

Fender Blues Junior: Classic Fender cleans with natural overdrive.
Vox AC15: British chime with iconic midrange character.
Marshall Origin 20W: Vintage Plexi-inspired tones with natural drive.

Step 4: Effects Pedals That Capture the "Era" vibes

Guitarists of that time relied on a few essential effects to shape their sound:

Overdrive & Fuzz: The Ibanez Tube Screamer and Electro-Harmonix Big Muff recreate the thick, sustaining drive tones heard on countless records. Don't Forget the J. Rockett Audio Designs Archer. A staple for these sounds.
Modulation: The MXR Phase 90 and Uni-Vibe pedal create the swirling, psychedelic textures used by Hendrix and Gilmour.
Reverb & Delay: Spring reverb and tape delay pedals replicate the ambiance of old recordings.

Step 5: Playing Techniques That can Help

Vintage sound isn’t just about the gear—it’s in the hands. Many of the greatest players had signature techniques that shaped their sound:

Dynamic picking: Light picking produces clean tones, while digging in pushes the amp into overdrive.
Bends & Vibrato: A wide vibrato or slow, controlled bends add expression to solos.
Hybrid Picking & Fingerpicking: Used by legends like Mark Knopfler to add depth to rhythm playing.

Pairing these techniques with a proper signal chain can really help you get there.

Step 6: Capturing Vintage Tone in Recordings

Vintage recordings had a distinct character due to analog tape machines, mic choices , mic placement, and natural room reverb. Also no click tracks - thats a whole other rabbit hole.. While most modern recording is digital, you can still emulate that organic warmth by using the right approach:

Mic Choice: Ribbon mics like the Royer R-121 soften harsh highs, while dynamic mics like the Shure SM57 provide punchy midrange.
Mic Placement: Close-miking captures detail, while room mics add natural reverb.
Analog Warmth: Plugins like tape saturation or running the guitar through an analog preamp can add vintage character.

The Secret to Vintage Tone is in the Details

Achieving a legendary vintage sound doesn't require spending $30,000—$70,000 it requires understanding how tone is shaped and choosing the right tools. From the right guitar and amp combination to the essential role of a premium coiled guitar cable, every piece of the chain matters.

Our Voltage Vintage Coils® bring out the best in your gear by maintaining clarity, preserving warmth, and subtly shaping the tone just as the original coiled cables did in the 60s and 70s. They are the missing piece in truly authentic vintage sound ⚡️

Check out the vintage colours of our flagship coiled guitar cables!

Image Credit- Kristoffer Paulsen

Looking For The Best Coiled Guitar Cables? Voltage Just Set a New Standard.

Thomas Welladsen — Wed, 19 Feb 2025 00:00:00 +1100

Vintage Guitar Tones, Curly Cables, Durability and why it all matters. For the love of the Coily!

The best coiled guitar cables are more than just a vintage aesthetic. They look killer, don’t get me wrong, but they should also enhance your tone, creative process, and most importantly, not let you down.

In this blog, our first blog on the subject, I’ll be outlining why we love recreating vintage tones and what makes our Voltage Vintage Coils® the best premium coiled or curly guitar cables available for guitarists looking for a great-sounding, reliable guitar cable.

Shop all Voltage Vintage Coil colours

Nostalgia - A feeling and Sound.

I remember when I first began playing guitar as a kid, I was always so keen to create the sounds I heard through my dad’s old radio. I grew up with probably one of the best introductions to that iconic era of music a kid could ask for. Music was constantly played in my family home, weeknights and weekends. I was introduced to artists like the Rolling Stones, Led Zeppelin, Frank Sinatra, U2, Pink Floyd, Sabbath, etc. etc. You get the picture.

As an obsessed guitarist, we all have the one riff that changes our perception of what a guitar can do and make us feel, and other people feel, for that matter. For me, I have a few. It was hearing “Little Wing” by Jimi hendix, “Money for Nothing” by Dire Straits, and “Kashmir” by Zeppelin. Those songs/riffs completely changed the trajectory of my guitar-playing journey. When I heard those songs and then learned how to play them (on my free Samick SG copy), it was game over.

I knew from that moment guitar would be a lifelong pursuit. This addiction we all love and share as guitarists runs deep. I think that’s why our cool little guitar industry is so gear-obsessed, and finding new or old sounds is what we’re all about. I mean… look at the rise of boutique effects pedals and vintage fuzz circuits, for example, crazy good times we’re living.

In my opinion, one of the reasons we chase these tones is that they bring us back to the feelings we felt when we first fell in love with guitar playing. That music influenced us all, and I suppose after all this time, chasing the tones of that iconic era is still very real and alive.

Most guitarists play a Stratocaster, Tele or Lp, my go-to is a Broadcaster.

Guitar had such an influence, I ended up working at the local guitar store and then, fast forward to now, founding my own guitar cable company. Cables always were a fun interest early on. I loved amps too, but really, when I noticed my gear would sound different with certain types of cables - less copper or more, cheaper vs. expensive. It sparked a curiosity that has evolved into building my own cable brand to help recreate those tones and solve some of the issues I faced, like cable failure and bad signal.

Coiled cables, Curly Cables, Spiral Cables, Coily Cords..

OK - now, enough about me and how magical the guitar is, and more about this cool niche: coiled guitar cables.

Do coily cables make a difference to sound? Yes.

Were the coils used way back in the day built pretty bad? Yes.

Are coiled cables now built much better? Kind of.

Does the sound of a curly cable roll off the highs? Yes.

Are the modern-day ones better? Yes and no.

When Voltage launched, a decision was made for our first product release. I always loved the way these cables looked and the subculture surrounding them, vintage tones, fashion, the vibe in general of what they evoked.

I’d used them for years previous to starting Voltage, but found problems with reliability and the sound from cheap/mid-range brands, even with the “premium” built ones I’d purchased from our American friends over the pond.

After speaking to a bunch of reputable guitar stores in the Voltage MI dealer network, and a number of guitarists around the globe, one thing was for sure: I was not alone, and the problems I encountered were the general consensus of the coiled cables on the market at that time.

“They failed, sounded bad, not the colours I want, and again, they fail.”

It was decided: the pursuit of making the best coiled guitar cable product range was what we were going to launch with as a new company, and I’m very glad we did.

That idea back in early 2019 has now formed into a full range called the Voltage Vintage Coils®, seven colors, one exclusive color for Chicago Music Exchange (Chicago Cream), and a patent-pending innovation designed to actually stop the problem most guitarists complained to us about: coil cable reliability and failure.

Voltage Vintage Coils are now available in over 40 retailers internationally.

The Must Haves for The Best Coiled Guitar Cable.

1. Low Capacitance: Whats really going on?

What we established and wanted to nail first in our pursuit of making the best coiled cable is the capacitance of our cables and overall sound.

Lower pF/ft (picofarads per foot) = better treble response.

Higher pF/ft = duller, muddier sound.

We believe we’ve found the sweet spot.

Some guitarists don’t notice the capacitance difference in cables, some guitarists actually don’t mind some of the highs being rolled off, and some actually seek out this unique sound due to the use with certain rigs or pickup choices.

One of our country artists, Vincent Neil Emerson, chooses to tour with our coiled cables because, one, they’re reliable, and two, the sound he gets pairing it with his Gretsch and maple-neck Telecaster is what he wants. Not too bright to take your head off but still so full and almost hi-fi, like how it fills out with a full band on stage.

Voltage Vintage Coils® use 21 AWG copper because it strikes the perfect balance. Tough enough to handle the real-world touring, but with just the right top-end frequencies. They still sound like coils, but tweaked for what we think sounds the best and stays reliable.

Voltage Vintage Coils measure 25–39 pF/ft depending on the stretch of the cable.

2. Reliability: Guitar cables need corrosion protection.

Most coiled cables and instrument cables in general don’t fail because they were yanked too hard. They fail because of corrosion, poor soldering, and sub-par protection methods at the most critical points.

We’ve seen corrosion affect output sockets, strings, potentiometers, and the internal wiring of amplifiers. I’m sure you’ve seen it too.

We’ve even seen it ruin some of our bulk cable stock in the warehouse.

It’s a real problem.

The closer I looked at this, we started poking around old failed guitar cables (not ours) given to us and found that this was one of if not the main points of failure.

In this photo, you can see the guitar cable is well rusted/ corroded and the green colouring is the oxidation now eating away at the copper.

Methods like “heat shrink” and “non-hermetic dielectric coatings” don’t stop corrosion.

Even if there’s good soldering, the chemical reaction, corrosion still, over time, damages your guitar cables. It creeps up into the internals, ruining the whole integrity of the cable. This age-old problem has been happening for a long time.

Over time, exposure to moisture, humidity, and oxidation causes serious issues:

• Crackling, signal loss, and random dropouts or muddy tone

• Corroded solder joints = weaker structural connections

• Total cable failure, even if it looks fine on the outside

3. Innovation: ISO-COAT® and why coily cables get it first!

OK! so what have we done about this at Voltage Cable Co.? and how have we implemented a fix for our coiled guitar cables to address the issue of failure so many guitarists told us about?

We spent the last 4 years developing and testing a process we now apply to all of our Voltage Vintage Coils. It's called ISO-COAT® and what it does is hermetically seal the most critical points exposed of the guitar cable assembly.

This hermetic seal locks out corrosion, oxidation and atmospheric attack. If your coiled cable has ISO-COAT®, these nasty chemical reactions can't wreck your signal or guitar cable .

Australian Standard Patent No. 2024204464

International Patent Pending Application No. PCT/AU2024/050220

What started as local demand to build the best coiled cables back in 2019, has ended up in my small but mighty Australian company developing, testing and applying for a patent to protect our invention and most of all to protect guitar cables!

Over kill just for a curly cable?

No way. thats not how we roll down under. We go all the way.

4. The Technicals & Specifics:

Using the best components and skilled labour is also how you make a killer, reliable guitar cable. Quality control is also a major thing here and we have a detailed system of Q/C testing to ensure every cable leaving the Sydney warehouse is as described on the box.

Now that you've done a bunch of heavy reading, heres a specs list for our Voltage Vintage Coils® and a few more reasons why they're the best coiled guitar cables available today:

• Australian Handmade – No mass production. Premium build quality. Every cable is handmade by technical engineers with over 45 years of experience in valve amp manufacturing.

• ISO-COAT® Lifetime Seal – Patented, first-of-its-kind hermetic seal to prevent corrosion, oxidation, cable failure, and sonic degradation.

Australian Standard Patent No. 2024204464 - International Patent Pending Application No. PCT/AU2024/050220

• Low Capacitance – 21 AWG copper strikes the perfect balance between toughness and top end. 25–39 pF/ft depending on stretch.

• Right-Angle Plugs – Custom plug configurations: right-angle/right-angle as well as extended “Tele” style plugs.

• Silver Solder – Silver solder is important for signal clarity and soldering strength. We use Quad Eutectic silver solder, the highest grade available for clean, reliable connections.

• Rigorous Quality Control – Five stages of quality control testing during manufacturing, with two audio tests before each cable is shipped from our Sydney workshop.

• Cable Lengths 25/30 ft – Best for both stage and studio use, right out of the box.

• Enhanced Recoil Memory – A thick outer jacket and materials preserve coil memory, ensuring your coil stays intact and performs year after year.

• Vintage Aesthetic – Nostalgic, vintage-inspired 60s automotive colors. Improved coil internal design, increasing durability compared to any other brand on the market.

Looking for a premium coiled guitar cable that won’t die on tour? The Voltage Vintage Coil® V2 just set a new benchmark.

Why Coily Cables Still Matter in 2025

Coiled guitar cables aren’t just a retro gimmick, they’re a practical, intentional choice. The best coiled guitar cables offer sound clarity, stage control, and recoil memory you can’t get from most tangle-prone straight leads.

Voltage Vintage Coils® are built with durability, tone, and iconic 60s style in mind. Every cable is hand-assembled in Sydney using G&H Bigfoot® plugs, Cardas® silver solder, and our exclusive ISO-COAT® protective seal - a patented technology that locks out corrosion and strengthens the critical points where most cables fail.

If you’re serious about tone, gear that lasts, and equipment that actually looks good on stage, a proper coiled cable makes sense. Voltage cables aren’t just built to sound premium, they’re built to last a lifetime.

Shop all Voltage Vintage Coils

See The Voltage Vintage Coils® in Action

Check out how these monster players Michael Lemmo from Normans Rare Guitars and Jedd Hughes pull tasty tones with our Voltage Vintage Coils

Blog image credit — @lostincrystalcanyons (Robert Hart)

Voltage Cable Co. Secures Patent for ISO-COAT®: A Breakthrough in Hermetically Sealed Audio Circuit and Cable Technology

Wed, 06 Aug 2025 22:48:00 +1000

Sydney, Australia – June 26, 2025

Voltage Cable Co. has been officially granted Australian Patent No. 2024204464 for its ISO-COAT® technology, a landmark development in corrosion-resistant cabling for the audio industry. This invention establishes a new category of structurally reinforced, hermetically sealed terminations designed to protect against the primary causes of cable failure: oxidation, corrosion, and mechanical fatigue.

A New Category in Corrosion-Resistant Cabling

Co-invented by Peter Frederick Reynolds and Thomas John Welladsen, ISO-COAT® introduces an impermeable membrane that forms an airtight barrier over solder terminations and audio assemblies. The result is a first-of-its-kind protective system for guitar cables, audio connectors, and electronic circuits of any kind. Built to endure the rigors of professional use, the ISO-COAT® process delivers a chemically bonded hermetic seal that blocks air, moisture, and atmospheric attack from compromising signal and structural integrity

Structurally Reinforced Hermetic Impermeable Membrane

Unlike traditional heat-shrink tubing or silicone coatings, which remain porous at a microscopic level, ISO-COAT® forms a complete hermetic seal. This structurally reinforced membrane not only halts the chemical reactions responsible for corrosion and oxidation. It also delivers measurable mechanical support to the vulnerable soldered connection points – the most common failure zones in standard instrument and guitar cables.

Beyond Coiled Cables - A Patent with Broad Applications

The significance of this advancement extends beyond coiled guitar cables. The patent protects the use of the ISO-COAT® method across any audio circuitry where soldered joints are present. By encasing these joints in a cured, non-porous barrier, Voltage Cable Co. has introduced a solution that addresses electrical degradation at its root cause. The result is a long-lasting, high-performance audio component that maintains electrical characteristics and tonal clarity over time.

Durability is Now a Matter of Record. It's the New Standard.

Durability is no longer a marketing claim. It is now a matter of record. The hermetic seal produced by ISO-COAT® transforms vulnerable terminations into chemically stable, structurally sound units capable of withstanding decades of use. This technology sets a new benchmark for what defines a durable guitar cable and a truly durable instrument cable.

Multi-Stage Development and Field-Proven Performance

The development of ISO-COAT® was the result of multi-year research and rigorous field testing. Each cable undergoes a multi-stage curing process that ensures proper adhesion and mechanical strength. Once applied, the membrane acts as a permanent defense system for the electrical and mechanical connection – withstanding temperature changes, humidity, shock, vibration and atmospheric attack.

Scalable Technology for Audio and Beyond

This patent is not limited to coiled cables or even instrument cables alone. It applies broadly to all audio circuits that require protection at the termination level. In that sense, ISO-COAT® represents a scalable, category-defining innovation across multiple sectors, including audio manufacturing, critial-grade audio electronics, and high-reliability consumer products.

An Industry First – Redefining Cable Failure Prevention

The patent grant formalizes Voltage Cable Co.'s position as the first manufacturer in the world to introduce hermetically sealed guitar cable terminations to market. It also signals a serious technical shift in how the music and electronics industries must approach cable durability and signal preservation.

Where traditional cables begin to fail after months or years of exposure, ISO-COAT® products maintain full performance with no degradation in resistance, capacitance, or signal-to-noise ratio. Artists, engineers, and technicians can expect consistent results across thousands of connection cycles, all backed by a transferable lifetime warranty.

Protected Technology with Global Implications

ISO-COAT® is now protected under Australian Standard Patent No. 2024204464, with international patent protection pending under PCT/AU2024/050220. This positions Voltage Cable Co. to lead not only the boutique instrument cable category, but the global standard for corrosion-resistant connection technology.

More Than a Patent - A Structural Breakthrough

This announcement is not simply about intellectual property. It reflects a major technical achievement. ISO-COAT® stands as the definitive answer to termination failure in audio systems. And with this patent milestone now secured, Voltage Cable Co. will continue advancing audio cable design with the same relentless focus on longevity, reliability, and structural integrity.

Australian Standard Patent No.: 2024204464
Internationally pending PCT No.: PCT/AU2024/050220
Inventors: Peter Frederick Reynolds, Thomas John Welladsen

Welladsen Bros Pty Ltd Accepted into Australian Government’s Industry Growth Program

Fri, 15 Aug 2025 15:24:00 +1000

We are proud to announce that Welladsen Bros Pty Ltd - Voltage Cable Co. has been accepted into the Australian Government’s Industry Growth Program.

This program supports innovative Australian manufacturing and will help us take our patented ISO-COAT® technology to global markets. It represents a significant step toward creating more local jobs, expanding our production capabilities, and showcasing homegrown innovation on the world stage.

We are grateful for this opportunity and look forward to working with our Industry Growth Program advisors to accelerate our next phase of growth.

About ISO-COAT®

ISO-COAT® is the world’s first patented hermetic seal for audio cable terminations and assemblies protecting against corrosion, sonic degradation, and premature failure. Developed and manufactured in Sydney, Australia, our technology is trusted by musicians worldwide.