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Dan Griffin

Dan Griffin
HumiSeal Midwest Account Manager
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Recent Posts

Limitations of Nano-Coatings for PCBs

Posted by Dan Griffin on Sep 23, 2019 10:01:00 AM

The past few years have seen the introduction of a number of thinner-film circuit board protection products of various chemistries, many of which have been generically termed “nano-coatings” by manufacturers despite confusion regarding what this really means. There is no clear definition of a nano-coating as it relates to printed circuit boards, and the product offerings vary from vacuum-deposited films and microparticles of single digit nanometer thicknesses to more robust performing products with thicknesses in the hundreds of nanometers. It is critical to manufacturers that the properties of true nano-coatings be compared to more traditional protection technologies so an accurate evaluation can be made.

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Topics: Humiseal Blog

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

Get on the Right Wavelength with LED Curable Conformal Coatings

Posted by Dan Griffin on Jun 27, 2019 10:32:28 AM

The evolution of conformal coatings for protection of PCBs and electronics has accelerated over the past few years. One development in particular has increased in popularity due to a promising array of advantages over its predecessors. These are LED Curable Coatings.

A partial list of existing technologies for conformal coatings would include:

  • acrylics (both solvent and water-borne)
  • solvent-borne polyurethanes
  • silicone-based polymers
  • synthetic rubber (solvent-borne)
  • Parylene technology
  • UV-curable acrylated urethanes (arc and microwave bulb source)

and most recently . . .

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Topics: UV Curable (Type AR/UR), LED technology, Conformal Coatings

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

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

Alternatives to Silicone Conformal Coatings Exist

Posted by Dan Griffin on Sep 19, 2018 7:00:00 AM

For many electronics manufacturers, the original justification for specifying a silicone coating is lost deep within the mists of time and it may be time for a re-evaluation and consideration of the question,

“Do we really need a silicone conformal coating?”

Humiseal® remains in a uniquely qualified position to help you answer this question. Unlike many coatings sources, Humiseal offers a full line of all the major conformal coating technologies including acrylics, urethanes, synthetic rubbers, water-borne, and yes; silicones. As a result, you can be certain of an unbiased approach to product evaluation that will result in the most cost-efficient material to meet your needs.

There are a number of factors to consider when evaluating your application to answer whether there is really a need for silicone technology:

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Topics: silicone conformal coating, Conformal Coatings