Parylene Coating Blog by Diamond-MT

How to Estimate Parylene Coating Costs

Posted by Sean Horn on Fri, Jul 29, 2016 @ 07:30 AM

Often considered the ultimate conformal coating, Parylene is well suited to protect many types of products and devices.

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Tags: parylene, parylene cost, parylene process, parylene price

Common Parylene Problems

Posted by Sean Horn on Fri, Jul 15, 2016 @ 07:30 AM

In addition to cracking, a range of associated issues may interfere with successful coating of parylene films.  Because it is applied via CVD, parylene generates a structurally continuous film covering a PCB or similar assembly.  In CVD, the interaction of vapor-phase chemical reactants formulate a non-volatile solid film on a substrate, useful for a variety of applications like corrosion resistance, erosion defense, and high temperature protection. 

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What Is the Price of Parylene Conformal Coating?

Posted by Sean Horn on Fri, Jul 08, 2016 @ 07:30 AM

Parylene is often considered the ultimate conformal coating for the protection of devices, components, and surfaces in the electronics, instrumentation, aerospace, medical, and engineering industries.

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Tags: parylene, parylene cost, parylene process, parylene dimer, parylene price

Does Parylene Adhere Chemically?

Posted by Sean Horn on Fri, Apr 01, 2016 @ 08:10 AM

            Parylene only adheres to substrates mechanically, and this can require assistance from additive substances; parylene’s chemically-based adherence is nonexistent.  Adhesion is a consequence of molecular attraction stimulating the surface unification of two dissimilar substances; their joining creates a significant physical bond between them.  Of the two primary types of adhesion, chemical adhesion results when a compound joins with another, because they share sufficient mutual chemical interaction to form a bond with each other.  Because parylene is chemically inert, chemical adhesion is impossible; it adheres using the other method -- mechanical adhesion.  Applied mechanical processes can stimulate this binding force between surface molecules.   

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Mastering the Parylene Coating Process

Posted by Sean Horn on Fri, Sep 04, 2015 @ 08:00 AM

Parylene Deposition  

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Parylene Masking Revealed

Posted by Sean Horn on Wed, Aug 14, 2013 @ 09:07 AM

Whether the application is a medical device, a printed circuit board (PCB), or a light-emitting diode (LED), a parylene conformal coating is typically applied to protect the product. Sometimes, however, the product actually has to be protected from the parylene conformal coating—or at least parts of it do. 

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Tags: parylene, parylene conformal coating, parylene process, parylene deposition, parylene masking

Choosing Parylene Thickness

Posted by Sean Horn on Wed, May 02, 2012 @ 04:04 PM

A question that is often brought up by customers who are new to conformal coating is what thickness to apply parylene.

One of the different factors to take into account when trying to determine the proper parylene thickness is the amount of clearance needed.  If it is a printed circuit board that is an enclosure, there usually will not be too many clearance issues.  However, in some cases, even an extra mil of coating can cause extra mechanical abrasion to the parylene which can result in damaged parylene.

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Tags: parylene, parylene conformal coating, parylene process, conformal coating, parylene thickness

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

All about the Parylene Coating Process

Posted by Sean Horn on Tue, Apr 03, 2012 @ 11:21 AM

Parylene 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. 

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Tags: parylene, parylene process, parylene deposition, Diamond-MT, conformal coating, parylene adhesion, parylene coating service

How to Improve Parylene Adhesion

Posted by Sean Horn on Wed, Mar 28, 2012 @ 02:28 PM

How to Improve Parylene Adhesion

 Parylene, through its deposition process, does not adhere chemically, only mechanically, to any given substrate.  In order to improve parylene adhesion to its best possible levels for a wide variety of substrates, different methods of surface modification via adhesion promoters must be used.  Adhesion promotion methods are typically used prior to the actual coating process, however some can be integrated during the process itself.

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Tags: parylene, parylene process, parylene deposition, conformal coating, parylene adhesion