Request A Quote

Download Our Urethane Resin 101 Guide: Coating Facts Sheet

Download our Urethane Resin 101 Guide

Urethane Resin is a popular choice for many different applications Download the Urethane Resin 101: Coating Facts Sheet today to learn more about this popular coating!

Receive your instant download of the Urethane Resin 101 Guide now by filling out this simple form.

Urethane Conformal Coating

printed circuit boards PCBs

Polyurethane coatings are amongst one of the most popular choices for conformal coating applications, they are available as single component, two component, UV curable, and water borne systems. As a group, all provide excellent humidity and chemical resistance plus outstanding dielectric properties for extended periods; which make them one of the more popular coatings when it comes to protection of the critical operation of your printed circuit boards (PCBs). Conformal coating circuit boards reduces conductor spacing’s on PCBs and it will offer superior protection in an aggressive environment as well as protecting the PCB against environmental particulates.

Why Urethane?

A main reason conformal coatings are used are to extend the warranties on consumer electronics in the following fields automotive, control drives, fire alarms as well as military/aerospace safety features and long term reliability. The selection of conformal coating material is a crucial factor that needs to be considered carefully and in relation to the application method. The wrong selection can not only affect the long term reliability of the circuit board but can cause massive difficulties with both processing and costs.

The most common standards for conformal coating are IPC A-610 and IPC-CC-830. These standards list indications of good and bad coverage and describe various failure mechanisms such as de-wetting and orange peel. Conformal coating inspection is a critical factor in determining successful coating application and long term reliability of PCBs. Using the IPC standards allows the coating operator to monitor the coating application performance. This can be done manually by the operator in an inspection booth by examining the PCB under white and UVA light or it can be done automatically by a conformal coating inspection system.

Acrylic Resin Coating Applications

More Benefits of Urethane

  • Good dielectric properties
  • Good moisture resistance
  • Solvent resistance
  • Less reversion potential
  • Abrasion resistance

Urethane Coatings for Every Industry

There are many different industries that conformal coating plays a critical role in.

Parylene Solutions for Aerospace
Defense / Aerospace
Parylene Solutions for Electronics
Parylene Solutions for Automotive
Parylene Solutions for LEDs
Parylene Solutions for Medical
Parylene Solutions for MEMs