Blog

Conformal Coating Quality + Reputation = Reliability for Your PCB

Posted by Albert Hernandez on Sep 30, 2019 10:30:00 AM

The electronics industry is exploding with the introduction of innumerable consumer devices designed with ever more complex functions and controls. These range from the relatively mundane such as controlling the temperature in your home to potentially life-saving including deploying airbags in your car or sensing hazardous road conditions. The demand for smarter and more complex electronics is becoming more important in everyday life.

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Topics: Conformal Coating Process, conformal coating application, Conformal coating benefits

Aromatic-Free Conformal Coatings: What Are My Options?

Posted by Dan Griffin on Jul 23, 2019 8:30:00 AM

Xylene and Toluene. Two words that can evoke concern and add to paperwork for environmental health and safety departments and manufacturing professionals. Aromatic solvents have been safely used for decades by employing basic safety equipment including gloves, masks, and proper workplace ventilation. Nevertheless, concerns for maximizing employee safety and minimizing effects on the environment have led electronics manufacturers to seek out alternatives. For over 20 years, HumiSeal® has supplied a wide-ranging group of aromatic-free products across all traditional chemistries to manufacturers for whom these concerns are critical.

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Topics: Conformal Coatings, conformal coating application, Aromatic Free

Are You Making This Mistake When Evaluating Conformal Coating Costs?

Posted by Dan Griffin on May 23, 2019 11:00:00 AM

Picking a Conformal Coating

You and your organization have spent weeks or months researching conformal coatings to meet the demanding specifications of your customers. These can include factors such as dielectric strength, thermal and mechanical shock properties, processing considerations, and so on. At some point, the critical consideration of price and cost must be added to the equation. The amalgamation of cost and performance could be considered a measure of the true value of any specific coating. 

 

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Topics: Conformal Coatings, conformal coating application, Conformal Coating Costs

The Importance of The Conformal Coating Thickness

Posted by Gyorffy, Balint on Mar 21, 2019 10:26:18 AM

Conformal coating thickness is one of the most important characteristics to ensure long-term reliability of your electronics. A minimum coating thickness is essential to provide the required function of the conformal coating, but if a conformal coating application is too thick, it can actually have negative effects on your level of protection.

Which conformal coating thickness should be applied to reach optimal protection?

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Topics: Conformal Coatings, conformal coating application

Optimizing Conformal Coating Flow Rates to Save Time and Money

Posted by Dan Griffin on Jan 16, 2019 10:20:00 AM

In a previous blog “How to Save Time and Money by Measuring the Right Amount of Viscosity,” viscosity was described as critical to the conformal coating process. This post will cover some of the technical details related to coating flow rate and the significant potential for savings of both time and money for PCB manufacturers.

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Topics: Conformal Coating Process, conformal coating application, Humiseal Blog, Flow rates

Improve Precision and Reduce Time When Removing Conformal Coatings

Posted by Vlad David on May 21, 2018 11:00:00 AM

UV curable conformal coating materials such as HumiSeal UV40 are frequently used in military, aerospace and automotive applications due to superior resistance to chemicals and mechanical stress. These properties make them difficult to remove when rework under the coating is required.

There are products available for chemical removal of conformal coatings, but many are restricted by government regulation and health and safety concerns.

An effective method for localised removal of conformal coatings, allowing the rework of the components, is the powder or micro-abrasion equipment.

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Topics: Micro Abrasion, conformal coating application, conformal coating removal

How to Save Time & Money Measuring the Right Amount of Viscosity

Posted by Rafael Hernandez on Mar 14, 2018 10:30:00 AM

The conformal coating process, like any other processes, has different variables, inputs, and outputs. In order to be able to control the results of your application (outputs), we need to fully understand how each variable affects the process. 

The importance of the variables

To get the right amount of liquid, thickness, right coverage, no contamination on keep out areas, etc., you need to identify and understand the variables of the process.

The most important variables:

  • Viscosity
  • Flow
  • Machine parameters (speed and Height)
  • Curing method

In this blog, we will concentrate on reviewing the first variable: Viscosity

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Topics: Conformal Coatings, conformal coating application, viscosity

Simple Steps to Ensure Proper Wetting & Good Adhesion

Posted by Monika Dybalska on Nov 20, 2017 11:00:00 AM

Have you ever seen your conformal coating separate or de-wet?  Have you observed the conformal coating to flake off after cure? The key to your success is understanding the relationship between surface energy (of the substrate) and surface tension (of the conformal coating).  There are some simple steps you can take to help ensure you possess a healthy balance of both.

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Topics: Humiseal, Conformal Coating Process, proper wetting, troubleshooting, surface energy, conformal coating application