Parylene Coating Blog by Diamond-MT

Nano Coating vs Parylene

Posted by Sean Horn on Fri, Feb 24, 2017 @ 08:00 AM

Although its basic component is remarkably small – with 25,400,000 nanometers included in just one inch(!!) -- nanotechnology encompasses a growing, interdisciplinary field with an unlimited future.  Nanowires and nanotubes are used in transistors for printed circuit boards (PCBs) and associated electronic assemblies.  Bio-nanobatteries, capacitators, LCDs, and microprocessors represent just a few nano-applications, which include uses for aerospace, agricultural, automotive, consumer, industrial, medical, military and oceanic products. 

Read More

Tags: parylene, parylene properties, conformal coating, parylene disadvantages, nano coating

Disadvantages of Using Parylene on Electronics

Posted by Sean Horn on Fri, Sep 23, 2016 @ 07:30 AM

Despite parylene’s numerous benefits as a conformal coating, it has several disadvantages that should be recognized before it is used.  Failure mechanisms that can emerge from parylene coatings have limited its wider scale application in comparison to liquid conformal films such as acrylic, epoxy, silicon, and urethane.  In many situations, wet coatings can provide better performance and lower cost (or both) for many applications

Read More

Tags: parylene, parylene properties, parylene removal, parylene disadvantages, parylene issues

Five Common Causes of Parylene Failure

Posted by Sean Horn on Fri, Aug 05, 2016 @ 08:00 AM

Parylene Conformal Coatings

Read More

Tags: parylene, parylene adhesion, parylene disadvantages, medical device coating, parylene delamination, parylene issues

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. 

Read More

Tags: parylene, parylene process, parylene rework, parylene disadvantages, parylene issues

How to Keep Parylene Coating Costs Low

Posted by Sean Horn on Fri, Jun 10, 2016 @ 07:30 AM

 

Designers must keep costs in mind when designing a project.

Read More

Tags: parylene, parylene cost, parylene dimer, parylene disadvantages

Parylene Conformal Coatings and UV Light

Posted by Sean Horn on Fri, Feb 05, 2016 @ 07:54 AM

            Parylene has numerous outdoor applications.  However, a major drawback of most parylene types is limited resistance to direct contact with UV radiation.  Daylight is the most common source of UV light.  Prolonged exposure to its high energy radiation can cause objects extensive surface damage and lead to eventual malfunction of electrical light-generating assemblies within.  

Read More

Tags: parylene, parylene for LEDs, parylene disadvantages, parylene f, parylene af-4

Common Parylene Defects

Posted by Sean Horn on Fri, Sep 25, 2015 @ 10:26 AM

While parylene is an extremely effective conformal coating, its benefits only come into play when it is properly applied. When parylene is either applied incorrectly or is deposited on a surface that is not prepared for adhesion, the coating can become compromised. Luckily, common parylene defects can be identified, planned for and mitigated through proper procedures.

Read More

Tags: parylene, parylene adhesion, parylene disadvantages

Seven Key Parylene Challenges

Posted by Sean Horn on Fri, Aug 14, 2015 @ 08:14 AM

Recognition of parylene's excellence as a conformal coating for many product uses has grown along with its application.  However, issues of barrier failure, current leakage, poor processing, and cost limit its further development and use.

Read More

Tags: parylene, parylene adhesion, parylene disadvantages

Understanding Parylene Deposition

Posted by Sean Horn on Fri, Jul 31, 2015 @ 08:10 AM

Parylene's deposition process is unique among conformal coatings. Unlike others that start as a liquid, get deposited and dry, it starts as a solid. Parylene coating equipment turns it into a vapor, where it then deposits onto the substrate. This unique four-step method poses some challenges but also brings real advantages.

Read More

Tags: parylene, parylene deposition, parylene disadvantages

Drawbacks of Parylene Coating

Posted by Sean Horn on Thu, Mar 05, 2015 @ 02:09 PM

Parylene has a well-deserved reputation as one of the leading choices for conformal coatings. For many applications, it is the best choice. However, there are some real parylene disadvantages, as well. For many applications, other conformal coatings such as acrylic, epoxy, silicone or urethane offer better performance, lower cost or both.

Read More

Tags: parylene, parylene disadvantages