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Securing Your Safety Devices: Corrosion Protection with Parylene

Mallory McGuinness | June 3, 2020

From smart locks to surveillance cameras to video doorbells, security and safety devices have our lives on lockdown. These products prevent burglaries, notify users of hazards, allow for emergency calls, and manage access control. The global market accounted is expected to reach $3,223.2 million by 2026 for these consumer electronics devices that make life safer and more predictable. 

Corrosion is Risky Business

Of course, if you design or manufacture a safety or security device, you understand that your products can only be safe for consumers when they operate reliably. And to reliably operate, your devices must remain resilient in the face of their own security threat – corrosion. Corrosion can sabotage even the most purposeful product design, degrading and gradually destroying your product materials, components, and, ultimately, your reliability.

Many types of corrosion can be seen as a landmine – not easily spotted but once tripped over, dangerous and costly. While a short circuit caused by liquid damage would immediately cause your device to fail, corrosion will result in a slow, unexpected shutdown, one that could put your customers – and your business at risk.

As many safety and security devices remain powered on, outside, all day, every day, regardless of the environmental conditions, they are subject to corrosive substances all around as gases, liquids, and solids. And although this natural process is inevitable, its progression can be drastically decelerated if the correct precautions are taken.

one phone underwater that is still working because of HZO protection and another that is dead because of water damage

Corrosion Protection with Parylene

Parylene coatings provides corrosion protection with a pinhole-free, ultra-thin conformal coating that is known for resilience, strength, insulation, and excellent moisture barrier properties. A chemically inert material with a broad temperature range, Parylene outperforms traditional conformal coatings as a safeguard against corrosive substances in the form of gases, liquids, and solids, providing dependable protection from threats in any state of matter, no matter the state of the environment.

Corrosive Gas Protection

Parylene coating has excelled in extremely corrosive environments, standing up to salt fog tests that simulate a severe marine environment and continuing to deliver while exposed to gases that might be found in an industrial environment in a mixed flowing gas test. Parylene also

performs dependably in sulfurous atmospheres (from air pollution that is due to the oil and gas industry, coal power plants, or clay or paper processing) when subjected to the flowers of sulfur simulation.

Corrosive Liquid Protection

Parylene coating has excellent chemical resistance to solvents and reagents used in processing, particularly in the cleaning of assemblies and components.

Parylene protects from these organic solvents:

  • Acetone
  • Monochlorobenzene
  • n Octane
  • Pyridine
  • Toluene
  • 2 Propanol (IPA)

Corrosive Solid Protection

Parylene also provides a dielectric, as well as a physical barrier that protects electronics from electrical shorting and external contamination. Some types of dust particles are salts, which contribute to corrosion on electronics.

Parylene protects from these organic solvents:

 

  • Dust
  • Foreign Object Debris
  • Metal Filings
  • Salt Particles

Parylene outperforms traditional conformal coatings as a safeguard against corrosive substances in the form of gases, liquids, and solids.

one phone underwater that is still working because of HZO protection and another that is dead because of water damage

Trust HZO to Protect Your Safety and Security Devices from Corrosion

While Parylene is a natural choice for corrosion protection, deciding which conformal coating vendor you want to partner with is more complicated. It can be challenging to find a “one-stop-shop” that can offer:

  • Practical expertise to perform all of the necessary work, such as masking, preparation of coating, mask removal, testing and inspection, cleaning and surface preparation, and application of conformal coating
  • Complex, sophisticated vacuum deposition equipment required
  • Material science knowledge needed to meet your protection requirements, design considerations, and cost concerns
  • Patented, proven processes that guarantee outcomes

We provide all of these resources with our turnkey solution and outperform while we do so. Our industry-leading proprietary coating equipment is optimized for scalability, our significant IP portfolio of 370+ assets is expanding, and we continue to hire only the best dedicated team of engineers. If you’d like to learn more about how you can make your product more reliable, drop us a line today.

While Parylene is a natural choice for corrosion protection, deciding which conformal coating vendor you want to partner with is more complicated.

Mallory McGuinness

Mallory is an electronics protection evangelist who writes content for HZO. In her free time she is reading non-fiction, and hanging out with her beta fish, King Awesome.

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