---
title: Thin Film and Conformal Coating for IoT
description: HZO thin film and conformal coating for IoT sensors improve moisture and corrosion resistance and are sustainable. Learn more about our IoT coating service
---

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    - [Parylene Coatings](https://hzo.com/coatings/parylene-coating) 
          - [Parylene Coating Properties](https://hzo.com/coatings/parylene-coating/properties/)
          - [Parylene Coating Process](https://hzo.com/coatings/parylene-coating/process)
- [Who We Serve](https://hzo.com/markets) 
    - [Medical Device](https://hzo.com/markets/medical-device)
    - [Consumer Electronics](https://hzo.com/markets/consumer-electronics)
    - [IoT](https://hzo.com/markets/iot-coatings)
    - [Industrial](https://hzo.com/markets/industrial)
    - [Aerospace & Defense](https://hzo.com/markets/aerospace-defense)
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- [Turnkey Solution](https://hzo.com/solutions) 
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[ CONTACT ](https://hzo.com/contact-us)

 INTERNET OF THINGS (IOT)

# Robust Protection for IoT Sensors, Delivered with a Cost-Efficient, Scalable Turnkey Solution

[ GET A QUOTE ](https://hzo.com/request-a-quote)

## Robust Protection for IoT Sensors, Delivered with a Cost-Efficient, Scalable Turnkey Solution

HZO coatings can sustain IoT sensors through full submersion, corrosive and hazardous operating environments at [50% thickness](https://hzo-4615657.hs-sites.com/blog/parylene-coating-thickness-how-much-is-enough) of conventional coatings.

**Learn about other [markets we serve](https://hzo.com/markets).**

#### Proven

Tested for over 1,200 hours of continuous submersion

#### Environment Protection

Superior Moisture Resistance and Corrosion Protection

## Ruggedization for Corrosive Environments

HZO's Parylene WVTR and gas permeability properties are extremely low.

| Polymer | Gas Permeability at 25 °C, (cc·mm)/ (m2·day·atm) | WVTR (g·mm)/ (m2·day) |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| N2 | O2 | CO2 | H2 | H2S | SO2 | CI2 |  |  |
| Parylene C | 0.4 | 2.8 | 3.0 | 43.3 | 5.1 | 4.3 | 0.1 | 0.08 |
| Parylene N | 3.0 | 15.4 | 84.3 | 212.6 | 313 | 745 | 29.2 | 0.59 |
| Parylene D | 1.8 | 12.6 | 5.1 | - | 0.6 | 1.9 | 0.2 | 0.09 |
| Parylene F (VT-4) | - | 16.7 | - | - | - | - | - | 0.28 |
| Epoxy (ER) | 1.6 | 4 | 3.1 | 43.3 | - | - | - | 0.94 |
| Polyurethane (UR) | 31.5 | 78.7 | 1.81 | - | - | - | - | 0.93 |
| Silicone (SR) | - | 19,685 | 118,110 | 17,717 | - | - | - | - |

## Barrier Protection for Resilient Products

Protect IoT components from:

#### DUST

![hzo-dust-protection-01](https://hzo.com/hubfs/hzo-dust-protection-01.jpg)

#### HUMIDITY

![hzo-humidity-protection-01](https://hzo.com/hubfs/hzo-humidity-protection-01.jpg)

#### CONDENSATION

![hzo-condensation-protection-01](https://hzo.com/hubfs/hzo-condensation-protection-01.jpg)

#### OIL

![hzo-oil-protection-01](https://hzo.com/hubfs/hzo-oil-protection-01.jpg)

![hzo-corroded-pcb-01-1](https://hzo.com/hubfs/hzo-corroded-pcb-01-1.jpg)

## Strong Chemical Resistance

[Extremely resistant to solvents and reagents](https://hzo-4615657.hs-sites.com/blog/parylene-chemical-resistance-properties-overview), including those listed below:

ACIDS, BASES, CORROSIVES

ORGANIC SOLVENTS

Hydrochloric acid, 10%

n-Octane

Sulfuric acid, 10%

n-Octane

Nitric acid, 10%

Chlorobenzene

Hydrofluoric acid, 10%

Pyridine

Sodium hydroxide solution, 10%

2-Propanol (IPA)

Ammonium hydroxide solution, 10%

Acetone

Hydrogen peroxide in water (H²O²)

## Beneficial Thermal Properties

HZO Coatings: 

- Can protect at temperatures up to 250°C
- Allow for good heat dissipation

![hzo-thermal-heat-sink-01](https://hzo.com/hubfs/hzo-thermal-heat-sink-01.jpg)

### How HZO Coatings Protect IoT - Consistency is Key

[ IOT coating property ](https://hzo.com/blog/conformal-coatings-for-iot-consistency-is-key)

## Fully Functional Coating at Fraction of the Mass

HZO coatings pass IPC CC-830C test at 50% film thickness of other conformal coatings.

| THICKNESS (MICRONS) | 0.1 TO 5 | 5 TO 12.5 | 12.5 TO 25 | 12.5 TO 50.8 |
| --- | --- | --- | --- | --- |
| **Relevant Standards ** | UT Type in Upcoming IPC-CC-830C | UT Type in Upcoming IPC-CC-830C | IPC-CC-830B | NASA-STD-8739.1B |
| **Protection Level ** | IPX3 / IPX4 | IPX4 / IPX7 | IPX7 / IPX8 | IPX7 / IPX8 |
| **Appropriate Products ** | Consumer Electronic & MEMS Devices | Consumer & Industrial Electronics | Aerospace, Automotive, Industrial, Medical Device, Telecom, & Other High-Reliability Markets | Aerospace, Defense, & Very Harsh Industrial |

## Sustainable Coatings Meet Regulation and Market Claims

#### ROHS COMPLIANT

#### REACH COMPLIANT

#### PROP 65 COMPLIANT

#### Select HZO Coatings have:

- No VOCs
- Biocompatible
- No Catalysts
- No Pollution Threats
- No Cure Time
- No Solvents
- Biostable
- No Halogens
- No Disposal Issues

![hzo-sustainable-coatings-01](https://hzo.com/hubfs/hzo-sustainable-coatings-01.jpg)

## Cost-Effective, Scaleable, Convenient Solution

### HZO Coating Process

![hzo-process-bg](https://hzo.com/hubfs/hzo-process-bg.jpg)

### 1 Pre-Production

- Inspection for quality standards and control for product tracking.
- Assembly preparation takes place.
- [Masking of areas](https://hzo-4615657.hs-sites.com/blog/parylene-masking-general-concepts-explained) where protection is not needed can be fully automated.

### 2 Production

- HZO raw material added to vaporizer and sublimated from solid to vapor form.
- Chemical is heated to a high temperature in a pyrolyzer, which "cracks" the raw material into an activated monomer. 
- At room temperature in the coating chamber, vapor forms a uniform, thin-film polymer barrier around the PCBs. 

Learn more about the [CVD process](https://hzo-4615657.hs-sites.com/blog/cvd-vs-pecvd-overview-of-the-processes).

### 3 Post-Production

- De-masking can be manual, semi-automated, or fully automated. 

![hzo-automation-01](https://hzo.com/hubfs/hzo-automation-01.jpg)

### Flexibility and Expertise

- Use a factory-in-factory business model or outsource to our global locations
- Coating rework and removal expertise

### Cost Savings

- Masking automation supported by our IP portfolio reduces cost and labor
- Automated, semi-automated, and manual masking available

![hzo-cost-savings-01](https://hzo.com/hubfs/hzo-cost-savings-01.jpg)

![hzo-small-batch-volume-01](https://hzo.com/hubfs/hzo-small-batch-volume-01.jpg)

### Small Batch or Scale to High Volume

- Throughput can be twice as fast as the industry standard
- Specially designed equipment decreases turnaround time

### Quality

- Millions of components coated with zero product returns due to coating issues
- Robust IQC / OQC process pre and post-coating

![hzo-quality-check-01](https://hzo.com/hubfs/hzo-quality-check-01.jpg)

### Download the HZO Parylene Datasheet

[ Get Datasheet ](https://hzo.com/hubfs/CTA%20Files/HZO-Guardian-Plus-Material-Properties.pdf)

## Resource Center

![Parylene Protection for LED Video Displays & Signage](https://hzo.com/hubfs/2023%20Website/Resources/Module%20Thumbnails/103-News-HZO%20LED%20Video%20Display.jpg)

 News Article

#### Parylene Protection for LED Video Displays & Signage

[ READ LED COATING NEWS ](https://hzo.com/resources/news/rizzo-information-display)

![Learn About the Costs of Corrosion](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/051-Infographic-HZO%20Corrosion%20Infographic.jpg)

 Infographic

#### Learn About the Costs of Corrosion

[ DOWNLOAD CORROSION INFOGRAPHIC ](https://hzo.com/resources/downloads/corrosion)

![Frightening Downtime Facts](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/055-Infographic-HZO%20Downtime%20Infographic.jpg)

 Infographic

#### Frightening Downtime Facts

[ DOWNLOAD DOWNTIME INFOGRAPHIC ](https://hzo.com/resources/downloads/downtime)

![Prevent Electronic Failure Webinar](https://hzo.com/hubfs/064-Webinar-HZO%20IoT%20Edge%20Computing.jpg)

 Webinar

#### Prevent Electronic Failure Webinar

[ WATCH ELECTRONIC FAILURE PREVENTION WEBINAR ](https://hzo.com/resources/webinars/prevent-electronic-failure)

![Learn About the Thin Film Coating Properties and Processes In Our Webinar](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/005-Webinar-Corrosion%20Resistance.jpg)

 Webinar

#### Learn About the Thin Film Coating Properties and Processes In Our Webinar

[ WATCH CORROSION WEBINAR ](https://hzo.com/resources/webinars/proven-methods-corrosion-protection)

![Learn Abut the Benefits of Protective Drone Coatings](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/015-Blog-Drone%20Coatings.jpg)

 Blog

#### Learn Abut the Benefits of Protective Drone Coatings

[ READ ABOUT DRONE COATINGS ](https://hzo.com/blog/conformal-coating-for-drones-which-is-best)

![Make Your Lithium Ion Battery Design More Sustainable](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/018-Blog-Lithium%20Ion%20Battery.jpg)

 Blog

#### Make Your Lithium Ion Battery Design More Sustainable

[ READ ABOUT LITHIUM-ION BATTERY COATINGS ](https://hzo.com/blog/how-to-make-your-lithium-ion-battery-design-more-sustainable)

![The Benefits of Consistent IoT Coatings](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/020-Blog-IoT%20Coatings.jpg)

 Blog

#### The Benefits of Consistent IoT Coatings

[ READ ABOUT IOT COATINGS ](https://hzo.com/blog/conformal-coatings-for-iot-consistency-is-key)

![Learn About The Value of LED Coatings](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/023-Blog-LED%20Board%20Coating.jpg)

 Blog

#### Learn About The Value of LED Coatings

[ READ ABOUT LED COATINGS ](https://hzo.com/blog/dont-be-left-in-the-dark-brief-history-of-the-led)

![Learn How to Solve Challenges To Smart Farm Reliability](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/025-Blog-Smart%20Farm%20Coating.jpg)

 Blog

#### Learn How to Solve Challenges To Smart Farm Reliability

[ READ ABOUT SMART FARM COATINGS ](https://hzo.com/blog/solving-challenges-for-smart-farms-weather-water-wear-and-tear)

![Learn How to Improve Your Battery Product Design](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/076-Brochure-HZO%20Batteries%20Brochure.jpg)

 Brochure

#### Learn How to Improve Your Battery Product Design

[ DOWNLOAD BATTERY COATINGS BROCHURE ](https://hzo.com/resources/downloads/battery-coatings)

![Mechanical Seals And HZO Coating Comparison Demo](https://hzo.com/hubfs/Website/Resources/Module%20Thumbnails/087-Video-HZO%20and%20Mechanical%20Seals%20Compared.jpg)

 Video

#### Mechanical Seals And HZO Coating Comparison Demo

[ WATCH HZO V. SEALS DEMO VIDEO ](https://hzo.com/resources/videos/mechanical-seals-vs-hzo-coating)

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          - [Parylene ](https://hzo.com/coatings/parylene-coating)
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          - [Parylene Properties](https://hzo.com/coatings/parylene-coating/properties/)
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