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Technical Articles

Technical Articles

A New Generation of Conformal Coatings for Challenging Operating Environments

Tags: Conformal Coatings, Research

Electrolube’s Phil Kinner discusses the evolution of tougher, more environmentally friendly conformal coating materials that have been formulated to cope reliably with the rigours of modern electronics deployments.

Modern electronic assemblies are increasingly expected to survive hostile operating environments and work reliably in conditions of prolonged high temperatures in the presence of thermal shock and high humidity, and where the assembly may be subject to condensation, corrosive agents or other types of chemical attack.…

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Conformal Coatings Vs Potting Compounds Which is better to protect my PCB, a coating or a resin?

Tags: Encapsulation Resins, Conformal Coatings, 2K Range

This is a question that is often asked throughout the electronics industry and Like any good engineering answer, it depends… on the degree of environmental protection required. The first thing to consider is often the design of any housing within which the PCB will be enclosed. If an assembly is enclosed in a housing which is designed to be the primary environmental protection, then a conformal coating is often used to provide a back-up to the primary protection provided by the housing. Where the housing is not suitable or capable of providing primary protection of the assembly from its operating environment, then most times a resin might be a better choice. Read more >

Condensation Testing - A New Approach

Tags: Conformal coatings, NPL, IPC, Testing

Co-Authored Paper: Chris Hunt, Ling Zou (National Physical Laboratory), Phil Kinner (Electrolube)

Conformal coatings are expected to perform across all manner of environments including high humidity environments, typically 40°C/93% RH, 65°C/95% RH or 85°C and 85% RH. Until recently, there has been little attention paid to how conformal coatings and their characteristics perform under such condensing conditions. Testing has previously been confined to humidity chambers which have certain limitations in respect to this testing type. Read more >