What Is Parylene?

Parylene may sound new, but it’s been trusted since the 1960s. Originally developed by scientists searching for a better way to protect delicate components, this remarkable coating quickly proved its value in demanding industries.

Instead of being sprayed or brushed on like traditional coatings, Parylene is applied as a gas inside a vacuum chamber. It forms a seamless, invisible film that clings to every surface — even inside tiny gaps or around complex shapes.

This breakthrough was first commercialised by Union Carbide, who saw its potential to safeguard sensitive electronics and medical equipment. Today, Parylene continues to set the standard for advanced, long-lasting protection.

How Does It Work?

Parylene is deposited molecule by molecule in a vacuum. This unique process results in:

  • A smooth, pinhole-free layer

  • Complete 360° coverage — even on the most intricate components

  • No brush marks, drips, or uneven build-up

The coating is incredibly thin and clear, so it doesn’t affect size, weight, or performance.

Where Is Parylene Used?

🔧 Electronics & Circuit Boards

  • Shields PCBs from moisture, corrosion, and dirt

  • Prevents short circuits and extends product life

  • Ideal for harsh or humid environments

🩺 Medical Devices

  • Offers a biocompatible and body-safe barrier

  • Suitable for implants and tools used in sterilised conditions

🛡 Military & Aerospace

  • Maintains reliability in extreme temperatures and pressure

  • Resists salt spray, chemicals, and mechanical stress

  • Used in everything from drones to deep-sea sensors

Why Choose Parylene?

  • Ultra-thin and transparent

  • Highly reliable in tough environments

  • Applies evenly to any surface — inside and out

  • Proven track record across industries for over 60 years

An Invisible Shield You Can Trust

Whether you’re building advanced medical tools or rugged electronics, Parylene gives your technology the protection it needs to perform flawlessly — no matter where it’s used.