Why Most “Anti-Corrosion” Methods Fail for Guitar Cables – The Truth Behind Cable Protection
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.
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.
Designed to be played, Built for a lifetime®
