IoT Conformal Coatings: Full Network Coverage

a picture of earth from a satellite with lines representing the internet

Mallory McGuinness | September 1, 2020

The Internet of Things (IoT) is more expansive than ever, thanks to the ubiquity of wireless networks and the decreasing costs of computer chips. Today, IoT sensors and other connected components are acquiring massive amounts of data used to inform critical decisions day in and out.

Case in point, it is projected that data generated from IoT devices will grow from 13.6 zettabytes to 79.4 zettabytes by 2025, a rapid increase.

IoT devices carry out countless tasks for countless applications, including

  • Tracking and monitoring
  • Supply chain management
  • Facilitating connected factories
  • Connecting bar code readers
  • Informing smart farming decisions
  • Enabling smart grid

With business and consumer spending on IoT hardware totaling around $3 Trillion this year, the importance of reliable connected devices has never been higher. IoT devices need to be cost-effective, adaptable to a wide range of environments, and able to operate at full capacity with very low power.

Conformal coatings offer strong barrier protection against environmental threats that could cause electronic failures, such as salt fog, humidity, pollutants, liquids and corrosives, and contaminants. This protection is lightweight and less bulky. These polymeric films typically apply at 25-250 micrometers thickness, a relatively thin layer of electrical insulation. The need for reliability, along with a trend towards smaller IoT products, is causing manufacturers and their device designers to consider using these thin-film coatings.

HZO PRO750 Parylene Coating Equipment

HZO PRO750 Parylene Coating Equipment

Protection for any Environment

Each conformal coating material has distinct characteristics, strengths, and weaknesses. Depending on application requirements and the operating environment, one type of conformal coating might be more appropriate than another. For example, silicone has good humidity and moisture resistance, while polyurethane exhibits excellent sturdiness and resistance to abrasion. Epoxies are an adequate choice for chemical resistance requirements, and acrylics offer transparent protection that is cost-effective and easily repaired.

With a diverse set of benefits, there seems to be a conformal coating to meet almost any specification and requirement, even mission-critical circumstances. But evaluating your options and working the coating application into your process can be timely. Unfortunately, with 127 new IoT devices connected to the web every second, there is no time to delay a decision about which conformal coating provides the best protection.

Deposited by a vacuum process, Parylene provides the highest level of protection possible for many projects.

At HZO, we offer Parylene conformal coating – a lighter, less bulky option that offers the thinnest effective coating application available. Deposited by a vacuum process, Parylene provides the highest level of protection possible for many projects and can make your product more resilient, withstanding temperature extremes and physical stress. Because of the vacuum deposition process, Parylene has uniform consistency, preventing ingress with pinhole-free coverage.

We encourage you to explore the characteristics of each conformal coating, and our engineers would love to assist in your decision. Not sure if acrylic or Parylene is ideal for you? No problem. We’ve got you covered. Send us a message, or contact us for a quote today.

To watch our educational video series on protecting IoT devices with Parylene and nanocoatings, visit HZO Protected. IoT connected.

 Parylene has uniform consistency, preventing ingress with pinhole-free coverage.

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.

Ryan Moore

Ryan is a 9-year veteran to the world of protecting electronics from harsh environments and a lover of all things technology.

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