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.
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 guitar cables
Voltage Vintage Coil® Collection
