Parylene Coating Blog by Diamond-MT

Cracking in Conformal Coating:  Major Causes and Preventative Strategies

Posted by Sean Horn on Fri, Feb 10, 2017 @ 07:45 AM

Conformal coatings protect printed circuit boards (PCBs) and similar electronic assemblies used for a wide range of aerospace, automotive, consumer, defense and medical applications.  Coatings effectively cover PCBs, shielding them from contaminants, liquid incursions, temperature fluctuations and other conditions potentially hazardous to component performance.  However, problems can develop if their preparation, application, and drying processes are inappropriately managed. 

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Tags: conformal coating, conformal coating process, conformal coating rework, conformal coating issues, conformal coating defects

Why Conformal Coat

Posted by Sean Horn on Tue, Jul 16, 2013 @ 11:59 AM

Printed circuit boards are extremely susceptible to a wide range of contaminants that can significantly damage or ruin them in a relatively short period of time. These contaminants include moisture, dust, and harmful chemicals. In addition, electronic circuits are also susceptible to extreme temperatures and environments.

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Tags: Diamond-MT, conformal coating, conformal coatings, conformal coating process

What causes bubbles in conformal coating?

Posted by Sean Horn on Wed, Sep 12, 2012 @ 09:41 AM

One of the causes for failure during conformal coating inspectionare bubbles.  Bubbles are trapped pockets of air under coating.  The bubbles can cause voids in the coating and Here we will identify the six largest causes of bubbles. 

 

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Tags: conformal coating, conformal coating process, conformal coating issues, conformal coating inspection, conformal coating bubbles

Conformal coating facility: Equipment required

Posted by Sean Horn on Mon, Aug 13, 2012 @ 09:26 AM

Last time, we discussed the general requirements necessary to open a conformal coating facility.  Now I will discuss the equipment that is required in order to have a properly operating facility.

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Tags: conformal coatings, conformal coating standards, conformal coating equipment, conformal coating process, conformal coating machines, spray booth, drying cabinet, inspection booth

Conformal Coating Service: What to look for?

Posted by Sean Horn on Thu, Jun 28, 2012 @ 08:48 AM

After you have decided to outsource conformal coating, it is time to evaluate and decide on a vendor.  What criteria should you use to evaluate your potential vendors and how should you make a final decision?

One thing to consider is the coating house’s experience level.  Developing solid procedures and processes for conformal coating take time and experience.  Many new vendors claim to be able to apply conformal coating as well as the experienced guys, but fall short whenever they run into issues they do not have the experience to troubleshoot.  It will be tough to get referrals from your coating house, as a lot of times they are required to sign a non-disclosure agreement.  A good way to evaluate their experience level would be to ask how many years they have been in business and their typical weekly, monthly, and yearly volumes processed.  A visit to their facility, if warranted by the volume of the project, should give a good indication of the seriousness of their abilities. 

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Tags: Diamond-MT, conformal coatings, conformal coating process, conformal coating service, parylene coating service

Different ways to deal with solvents in conformal coatings

Posted by Sean Horn on Tue, May 29, 2012 @ 09:55 AM

Option 1: Regularly measure the solvent exposure to operators.

Solvents can be used safely.  However, the exposure of the operator to the solvent fumes must be REGULARLY measured and RECORDED. This ensures a safe operating environment and if an OSHA problem does arise in the future, evidence exists to rule out the conformal coating process as the culprit.

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Tags: conformal coating, conformal coatings, conformal coating process, conformal coating solvents, conformal coating service, safety, conformal coating safety, solvents

Should I Use a Conformal Coating Machine?

Posted by Sean Horn on Mon, Apr 23, 2012 @ 01:27 PM

Depending on your application, choosing to use conformal coating equipment can be a very wise choice for maximum efficiency.  I would recommend use of the conformal coating process decision worksheet to determine your coating needs and whether you should outsource conformal coating prior to purchasing a machine. 

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Tags: dip coating equipment, conformal coating, conformal coating equipment, conformal coating process, conformal coating machines

How Parylene Cost is Determined

Posted by Sean Horn on Mon, Apr 16, 2012 @ 03:34 PM

Parylene is often priced out to be one of the more expensive conformal coating options.  After a quick look at some of the cost factors, it will be easy to see why.  Three of the main factors that influence parylene cost are raw materials, labor, and lot volume. 

 Raw Materials – Parylene Dimer and Adhesion Promotion

 Parylene dimer is the raw form of parylene.  It is the solid inserted into the machine that is broken down through the deposition process.  Cost for parylene dimer can be anywhere from $200 to $5,000 per pound depending on the different type of dimer.  A typical coating run is around a pound of dimer.

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Tags: parylene, parylene cost, parylene process, parylene deposition, parylene dimer, conformal coating process, conformal coating methods, conformal coating service, parylene adhesion, parylene coating service, conformal coating costs

Check out our guide to HumiSeal 1A33!

Posted by Sean Horn on Fri, Apr 13, 2012 @ 11:48 AM

Diamond-MT is proud to have a very strong working knowledge of all conformal coatings.  As a result, we have launched a new guide for HumiSeal 1A33, a very popular urethane resin conformal coating.   

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Tags: Diamond-MT, conformal coating, conformal coating process, conformal coating methods, conformal coating service, conformal coating rework, HumiSeal, Humiseal 1A33

The Conformal Coating Process: An In-Depth Review

Posted by Sean Horn on Wed, Apr 11, 2012 @ 10:21 AM

Conformal Coating Process – Phase 1 – Prior to Parts Arrival

 Once we receive a purchase order from a customer, all of the pertinent information such as drawings, specifications, and special instructions are given to the quality department from our marketing team to create custom work instructions for that particular part.  If the material to be used has not yet been determined, we work with the customer to determine the best material for their application. 

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Tags: Diamond-MT, conformal coating, conformal coating process, conformal coating methods, conformal coating service