ISO‑COAT® – Patented Durable Guitar Cables Built for a Lifetime
The world’s first and only patented hermetic seal for cables.
Guitar Cable failure was never just bad luck. It was corrosion, bad soldering, and shortcuts.
ISO-COAT® is our answer to decades of cable failures. It was built to stop corrosion before it starts, seal the cable from the inside, and keep your tone alive for the long haul.
The weak point.
Every guitar cable has a weak spot: the solder terminations. Without proper protection, moisture, humidity, and airborne gases can cause a chemical reaction called oxidation. This reaction eats away at the solder joints and copper.
We’ve all heard the famous “crackle.” Then what follows is the slow decay of your tone over time. Eventually, the cable will die and you’re left chasing warranty, or spending more money on a new product.
This photo is an actual decayed cable from our research and development phase. A clear case showing how oxidation weakened this joint and caused failure.
Please note: Decayed cable is not a Voltage product - The brand will not be named.
The Science of Corrosion.
What’s Happening Inside:
Corrosion doesn’t stay contained. It spreads.
Over time, oxidation eats away at the copper, breaking down the solder terminations and degrading the joints. Oxidation changes the electrical characteristics and conducting properties of the copper itself.
Once this reaction starts, the cable weakens both physically and sonically.
The sonic degradation part is what quietly destroys your guitar tone from the inside out.
Do other non ISO-COAT cables stop oxidation? NO.
Heat shrink, cheap subpar coatings or slapped on silicon seals don’t stop oxidation - very far from it. These weak attempts aren’t tested, proven or backed by a patent. They hide the problem. They don’t solve it.
The only way to prevent oxidation from damaging your cables is to seal it hermetically, once and from the start. That’s why other cables will die, and why we created the world’s first patented hermetic seal for guitar cables: ISO-COAT® .
This photo is an actual decayed cable from our research and development phase. A clear case of oxidation. Notice the green colouring taking over the copper, plug and solder.
Please note: Decayed cable is not a Voltage product - The brand will not be named.
Technicals and features
Hermetic Seal
Patented first-of-its-kind hermetic seal for guitar cables. Hermetic sealing means no air, no moisture, and no oxidation. Protecting the solder assembly and copper for the life of the cable.
Stops Corrosion Before It Starts
Designed for any gig, any climate, anywhere. ISO-COAT® locks out corrosion and oxidation. The two leading causes of cable failure and sonic degradation.
Stronger. Better.
A stronger, reinforced impermeable membrane. A, high-durability barrier that strengthens and protects the solder joint. Every cable cures for at least 24 hours to ensure maximum strength & reliability before final testing.
Backed by Patent No. 2024204464
The most durable guitar cables. ISO-COAT® is the world’s first hermetic seal for instrument cables. Recognised by an Australian standard patent and patent pending worldwide - this is our stake in the ground as a boutique company and innovative step forward for guitar cable manufacturing.
Designed for the Stage.
Voltage cables have been on stages throughout North America, Europe, Australia and the UK. Designed to handle the toughest of gigs.
Lifetime Confidence
Every cable undergoes a 5-stage QC process, including two detailed audio tests before shipping. Ensuring reliability & consistency with every build. No compromises.
The process
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The Perfect Joint.
It all starts with a perfect joint. Oxygen-free, with silver-solder and structurally sound. Even the best soldering isn’t immune to the nasties.
That’s where ISO-COAT® comes in as the next level of durability and our guarantee.
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the method.
This is ISO-COAT® in action, a handmade process. Our techs hermetically seal the cable assembly to keep that silver solder protected and copper in tact.
No shortcuts. A fully sealed, corrosion-proof connection built to last forever.
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the curing.
After we apply the seal, each cable is then cured for at least 24 hours before we add the final reinforcement and branding.
This process takes place in a controlled environment, before final branding and heat shrink is applied.
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The reinforcement.
Heat shrink doesn’t hermetically seal or have any real corrosion prevention ability, but It helps finish the job. It adds an extra layer of structural integrity to our terminations and shows off our branding.
It's applied on top of ISO-COAT, after the curing process and covers the seal completely.
signed. sealed. stamped.
Every Voltage cable comes with a hand-stamped wax seal and a physical authenticity card. Complete with a scannable QR code linking directly to this page.
It’s proof that your cable was built, durability sealed, and passed our quality control.
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