Parylene Coating Blog by Diamond-MT

Aerospace Conformal Coatings

Posted by Sean Horn on Fri, Feb 09, 2018 @ 08:05 AM

Conformal coatings composed of acrylic, silicone and parylene polymer materials are valuable for a wide range of aerospace applications, which can push technologies to their limits. Applied to printed circuit boards (PCBs) and related electrical assemblies, conformal coatings maintain device performance through difficult operational conditions. The presence of atmospheric variation, chemicals, humidity, mobile ion permeation, moisture, temperature fluctuation, or excessive vibration can generate:

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Tags: acrylic conformal coating, parylene for aerospace, conformal coating applications

Conformal Coating Types: Acrylic, Urethane, Silicone, and Parylene

Posted by Sean Horn on Fri, Feb 02, 2018 @ 07:33 AM

Used for aerospace. automotive, commercial, defense, industrial and medical applications, conformal coatings are applied in film layers generally 30-130 microns (micrometers/μm) thick, or 0.0012-0.0051 inches (“). Conformal films’ exceptional thinness is their greatest asset. Coatings safeguard printed circuit boards (PCBs) and similar electronics from performance malfunction generated by unwanted contact with:

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Tags: acrylic conformal coating, parylene conformal coating, silicone conformal coating, urethane conformal coating, conformal coating types

Ruggedization and Conformal Coating

Posted by Sean Horn on Fri, Jan 05, 2018 @ 07:35 AM

Conformal coatings are non-conductive dielectric film-coverings applied over printed circuit boards (PCBs) to protect them from damage caused by chemical incursion, corrosion, current-leakage, dirt/dust, extreme temperatures, fungus, moisture, rain, salt-spray, wind and persistent, intensive vibrations both within and external to the device. These failure mechanisms can soon lead to PCB malfunction and eventual breakdown. Rugged coatings’ exceptional performance durability and versatility protect delicate, finely-tuned components.

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Tags: acrylic conformal coating, parylene, parylene conformal coating, rugged electronics, ruggedization

Military Conformal Coatings

Posted by Sean Horn on Fri, Nov 24, 2017 @ 09:00 AM

 

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Tags: acrylic conformal coating, parylene, urethane conformal coating, rugged electronics, COTS, ruggedization, military electronics

Best Electronics Coatings

Posted by Sean Horn on Fri, Nov 17, 2017 @ 08:01 AM

Available in five basic material types, conformal coatings can be readily adapted as protective, insulating films for electronics. However, there can be some confusion about which type is best-suited for a specific use. Clearly defining the performance parameters for the component[s] to-be-coated helps coordinate the conformal film material with a unit’s functional requirements. Accurate assessment of environmental conditions like anticipated levels of corrosion, contact with foreign particulates, expected concentrations of moisture/salt spray, temperature fluctuations and vibrational range determine which coating type is best-suited to your electronics’ applications. Without appropriate protection, printed circuit boards (PCBs) and similar electronics will not survive harsh environments, and malfunction.

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Tags: acrylic conformal coating, parylene, silicone conformal coating, urethane conformal coating, rugged electronics, electronics, epoxy conformal coating, ruggedization, conformal coating selection, electronic conformal coatings

Conformal Coating Suppliers

Posted by Sean Horn on Fri, Aug 25, 2017 @ 08:00 AM

In the highly competitive conformal coatings’ industry, these providers stand out:

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Tags: acrylic conformal coating, conformal coating, conformal coating suppliers

How to Remove Conformal Coatings

Posted by Sean Horn on Fri, Aug 18, 2017 @ 07:30 AM

Appropriately selected and applied, conformal coatings provide essential working protection for printed circuit boards (PCBs). However, removal of conformal coatings is necessary if the wrong coating material is selected relative to the PCB’s functional requirements, inadequately supporting its operating environment. Poor coating application can trigger failure mechanisms within the assembly, also calling for its removal and re-application.

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Tags: acrylic conformal coating, parylene conformal coating, silicone conformal coating, urethane conformal coating, conformal coating removal, conformal coating removal services

3 Key Properties of Acrylic Conformal Coating

Posted by Sean Horn on Fri, Aug 04, 2017 @ 07:39 AM

Conformal coatings made of acrylic resin (AR) are very popular, because of their distinctive beneficial properties. They protect printed circuit boards (PCBs) and similar electronics from corrosion, dirt, dust, fungus, moisture, and thermal shocks. Exceptionally user-friendly, liquid AR can be simply applied by brush, dip, or manual/robotic spray, generally resulting in the fastest turnaround-time of all conformal coatings. Ease of application and rework generates low cost for both manufacturer and client. AR’s moisture protection is also very highly rated, adding to its utility for a wide range of coating uses.

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Tags: acrylic conformal coating, conformal coating, conformal coating properties

Conformal Coating for PCB's

Posted by Sean Horn on Fri, Jul 21, 2017 @ 07:47 AM

Printed circuit boards (PCBs) electrically connect and power all but the simplest electronic products.  To function as designed, PCBs and their components – capacitors, resistors, etc. – require protection against operating problems caused by corrosive liquids, dust, physical shock, temperature extremes and, in the case of medical implants, bodily fluids.  Conformal coatings are applied over PCBs to safeguard mechanisms and maintain functionality.  

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Tags: acrylic conformal coating, parylene conformal coating, silicone conformal coating, conformal coatings, urethane conformal coating

Which Conformal Coating Is Right for Me?

Posted by Sean Horn on Fri, May 19, 2017 @ 07:30 AM

          The value of polymeric conformal coatings for protecting printed circuit boards (PCBs) from functional retardants like dust, corrosion, moisture, and temperature fluctuations has been well-documented.  Conforming to the physical configurations of the exposed face of the PCB, conformal coating:

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Tags: acrylic conformal coating, parylene, conformal coating, silicone conformal coating, urethane conformal coating

Comparing AR to UR Conformal Coating

Posted by Sean Horn on Fri, May 27, 2016 @ 07:30 AM

Acrylic (AR) and polyurethane (UR) conformal coatings are among the best known and most commonly used conformal coating materials.  As liquid coatings, both can be applied to substrates through a variety of methods:

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Tags: acrylic conformal coating, conformal coating, urethane conformal coating, coating comparison

Benefits of Conformal Coating

Posted by Sean Horn on Fri, Jan 08, 2016 @ 08:07 AM

Electronics manufacturers need devices that withstand heat, cold, rain, snow, vibration, fungus, oxidation, and corrosion through decades of operation.

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Tags: acrylic conformal coating, parylene, conformal coating, silicone conformal coating, urethane conformal coating

How Parylene is Applied Compared to Other Conformal Coatings

Posted by Sean Horn on Fri, Aug 21, 2015 @ 01:45 PM

Overall the generic name parylene describes a distinct collection of polycrystalline and linear organic coating materials with innumerable applications.  The essential basis of today's parylene N, p-xylene, was inadvertently synthesized at England's University of Manchester in 1947The filmy residue resulted after high-temperature heating of compounds of toulene and the xylenes polymerized into para-xylene.  The substance immediately demonstrated an exceptional capacity for generating the fine but resilient surface-covering that characterizes today's range of parylene conformal coatings.  

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Tags: acrylic conformal coating, parylene, parylene deposition

Parylene coating vs conformal coating

Posted by Sean Horn on Fri, Jul 24, 2015 @ 08:17 AM

Conformal Coatings

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Tags: acrylic conformal coating, parylene, conformal coating

Differences between Parylene and Acrylic Conformal Coating

Posted by Sean Horn on Fri, Apr 17, 2015 @ 09:00 AM

Parylene and acrylic conformal coatings represent two extremes of the types of compounds you can use to coat printed circuit boards, sensors, or other devices. While acrylic is popular and inexpensive, parylene offers some of the best performance of any coating compound.

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Tags: acrylic conformal coating, parylene

Conformal Coating Selection

Posted by Sean Horn on Thu, Jul 25, 2013 @ 02:23 PM

Conformal Coating Selection: Weighing the Pros and Cons for Your Application

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Tags: acrylic conformal coating, parylene conformal coating, conformal coating, silicone conformal coating, urethane conformal coating, epoxy conformal coating

Acrylic vs Urethane Conformal Coating

Posted by Sean Horn on Tue, Apr 02, 2013 @ 08:29 AM

Acrylic and urethane conformal coating are widely used conformal coatings.  While they share the same methods of applications and ultimate end item uses, there are some differences that should be addressed prior to deciding what conformal coating is the best for your project.

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Tags: acrylic conformal coating, HumiSeal 1B31, urethane conformal coating, MG Chemicals, HumiSeal, Humiseal 1A33

Parylene vs Acrylic Conformal Coatings

Posted by Sean Horn on Wed, Feb 13, 2013 @ 02:34 PM

Parylene and acrylic resins are both conformal coatings.  Most of the similarities stop there.  Because their properties vary so much, they have their own unique uses and capabilities.

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Tags: acrylic conformal coating, parylene, dip coating equipment, parylene cost, parylene conformal coating, parylene coating process

Parylene Alternatives

Posted by Sean Horn on Fri, Jan 18, 2013 @ 08:43 AM

Parylene conformal coating is a very robust coating, but sometimes it is not the right fit for a customer’s application for one reason or another.  The entire conformal coating process is based on first identifying the standards to be used and customer’s protection desired.  It would therefore only make sense that there are alternatives to parylene for different conformal coating demands.

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Tags: acrylic conformal coating, parylene, parylene conformal coating, conformal coating, silicone conformal coating, urethane conformal coating

What is a good thickness for acrylic conformal coating?

Posted by Sean Horn on Mon, Jan 07, 2013 @ 10:57 AM

Acrylic conformal coatings, such as MG Chemicals 419C and Humiseal 1B31 are a very popular conformal coating choice.  They are used primarily for moisture protection on printed circuit boards.  Often times, they are the cheapest conformal coating to apply because of their easy to use nature.  As a result of this, people try to apply acrylic conformal coating as a DIY project.  An issue that arises frequently is an improper thickness of coating, resulting in lackluster protection.

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Tags: acrylic conformal coating, Diamond-MT, conformal coating thickness, type ar conformal coating

Type AR Conformal Coating Examples

Posted by Sean Horn on Wed, Sep 26, 2012 @ 10:05 AM

Type AR (acrylic resin) conformal coatings are a popular choice for conformal coating projects because of their moisture protection, low cost, and ease of application.  There are many different varieties of type AR conformal coatings such as:

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Tags: acrylic conformal coating, conformal coating, conformal coatings, HumiSeal 1B31, MG Chemicals, type ar conformal coating

Will HumiSeal 1B31 mitigate tin whiskers?

Posted by Sean Horn on Tue, Sep 04, 2012 @ 01:20 PM

Tin whiskers are electrically conductive, crystalline structures of tin that sometimes grow from surfaces where tin (especially electroplated tin) is used as a final finish.  They typically grow from lengths of 1-2 millimeters (mm) but have been observed to lengths in excess of 10 mm.  They are a serious issue in the electronics world because they have been known to cause short circuits between circuit elements. 

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Tags: acrylic conformal coating, conformal coating, conformal coatings, HumiSeal 1B31, tin whiskers, tin whisker mitigation, urethane conformal coating

What is the right conformal coating for LEDs?

Posted by Sean Horn on Thu, Jun 21, 2012 @ 11:50 AM

Light emitting diodes (LEDs) are a huge and growing even bigger segment of the electronics industry.  LEDs are expanding into environments that demand a higher l evel of protection in order for the LED to function properly.  One way to get this level of protection is by using conformal coating.

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Tags: acrylic conformal coating, parylene, conformal coating, silicone conformal coating, LED conformal coating, conformal coating masking, parylene for LEDs

When Not to Use Acrylic Conformal Coating

Posted by Sean Horn on Wed, May 16, 2012 @ 07:52 AM

While acrylic conformal coating does have its many benefits, there are some applications whenever it is not the ideal conformal coating  to be using.  Typically in applications that have exposure to solvents, high temperature requirements, or require coating hardness, acrylic conformal coating should not be used.

 Solvent exposure

 In applications that have an exposure to solvents, acrylic conformal coating is not the best choice.  Acrylic conformal coating can be removed with a weaker solvent such as isopropyl alcohol or xylene.  Whenever it faces even stronger solvents, it will not offer the protection that is needed, especially if your product is a mission critical device.  Other coatings, such as urethane or parylene conformal coating have a far better resistance to solvents than acrylics.

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Tags: acrylic conformal coating, parylene conformal coating, conformal coating, silicone conformal coating, conformal coatings, HumiSeal 1B31, urethane conformal coating, HumiSeal, epoxy conformal coating

Benefits of Conformal Coatings

Posted by Sean Horn on Mon, Apr 30, 2012 @ 08:22 AM

Whenever a potential project that could benefit from a conformal coating application is discussed, the benefits of conformal coating need to be addressed.  By looking at the benefits of each different coating, you can see which coating will be right for your project.

WHAT IS CONFORMAL COATING

Conformal coating is a protective non conductive dielectric layer that is applied to protect the assembly from damage due to contamination, salt spray, moisture, fungus, dust and corrosion caused by harsh or extreme environments.  

ARE THERE DIFFERENT TYPES OF CONFORMAL COATING?

There are 5 different mediums for conformal coating:
  • Parylene
  • Acrylic Resin
  • Urethane Resin
  • Epoxy Resin
  • Urethane Resin

WHAT ARE THE BENEFITS OF EACH TYPE OF CONFORMAL COATING?

  • Parylene (Type XY)
Parylene possesses superior chemical barrier properties, are biochemically inert, and because of the deposition process can be applied uniformly to virtually any surface and shape including: glass, metal, paper, resin, plastics, ceramics, ferrite and silicon.
  • Acrylic Resin (Type AR)
Acrylic conformal coatings are easily applied. They dry to the touch at room temperature in minutes, have desirable electrical and physical properties, and are fungus resistant.
  • Epoxy (Type ER)
Epoxy systems are usually available as “two-component” compounds. These rugged conformal coatings provide good humidity resistance and high abrasion and chemical resistance.
  • Polyurethane (Type UR)
As a group, all provide excellent humidity and chemical resistance plus outstanding dielectric properties for extended periods.
  • Silicone (Type SR)
Silicone conformal coatings are particularly useful for high temperature service, up to about 200 deg. C. They provide high humidity and corrosion resistance along with good thermal endurance.
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Tags: acrylic conformal coating, parylene conformal coating, conformal coating, silicone conformal coating, urethane conformal coating, epoxy conformal coating

Check out our free guide to HumiSeal 1B31!

Posted by Sean Horn on Fri, Apr 06, 2012 @ 08:11 AM

Diamond-MT is proud to announce a new guide for HumiSeal 1B31 conformal coating. 

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Tags: acrylic conformal coating, Diamond-MT, conformal coating, conformal coating equipment, HumiSeal 1B31, conformal coating methods, conformal coating service, conformal coating removal, conformal coating rework

The Benefits of Acrylic Conformal Coating

Posted by Sean Horn on Tue, Mar 20, 2012 @ 03:54 PM

The Benefits of Acrylic Conformal Coating

 Acrylic conformal coating offers its many benefits as your conformal coating of choice.  The main benefits of acrylic conformal coating are the ease of use, physical properties, and their low costs.

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Tags: acrylic conformal coating, conformal coating