Parylene Coating Blog by Diamond-MT

Liquid Teflon vs Parylene

Posted by Sean Horn on Fri, Dec 30, 2016 @ 07:46 AM

           Conformal coatings are surface treatments applied to a wide range of products and devices used for aerospace, automotive, biomedical, consumer, military and numerous other purposes.  Their primary objective is providing a protective film that supports a selected device’s ease of use, operating function, and service life, through an exceptional variety of working environments.  Liquid Teflon (PTFE) and parylene are two of the more widely used hydrophobic conformal coatings. 

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Tags: Medical conformal coatings, medical parylene, medical parylene uses, teflon, medical device coating, ptfe

Comparing Lubricious Coatings

Posted by Sean Horn on Fri, Dec 23, 2016 @ 07:47 AM

Selection of the material used to coat a medical device is very influenced by the operational environment it will encounter when implanted in the body.  Pertinent operational/performance factors typically include:

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Tags: medical parylene, medical devices, medical device coating

Parylene Protects Stents

Posted by Sean Horn on Fri, Dec 16, 2016 @ 07:48 AM

Biocompatible parylene conformal coatings provide superior protection for medical stents.  They represent an enabling technology consistently applied to medical devices of all types for 35 years, to diminish problems stemming from surface microporosity and consequent biofluid corrosion after implant.  Providing a reliable barrier to chemicals and moisture, parylene’s static and dynamic coefficients of friction are comparable to those of Teflon.

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Tags: parylene, Medical conformal coatings, medical parylene, medical parylene uses, medical devices, bio-medical, medical device coating

Parylene Coating Nitinol

Posted by Sean Horn on Fri, Dec 09, 2016 @ 07:24 AM

A metal alloy of nickel (Ni) and titanium (Ti), nitinol (NiTi) exhibits the properties of shape memory and superelasticity, which make it very useful for adaptation to conformal coatings.  However, like parylene, nitinol is often difficult and expensive to produce; the extreme reactivity of the alloy’s titanium component requires exceptionally tight compositional control during combination and manufacture.  

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Tags: parylene, medical parylene, medical devices, medical device coating

Is Parylene Safe?

Posted by Sean Horn on Fri, Aug 12, 2016 @ 07:30 AM

Application of parylene’s xylylene monomer employs a chemical vapor deposition (CVD) process implemented under a vacuum.  Unlike wet coating application methods – brushing, dipping, spraying, etc. – parylene CVD is not line-of-sight.  Because the vaporous monomer envelopes all sides of the assembly being coated, appropriate process control allows vacuum deposition of an entirely conformal coating, one that penetrates deep into any crevices, rivulets, or sharp edges and points that exist on the assembly’s surface.  The resultant parylene film is insulating, ultra-thin, and pinhole-free, exhibiting superior protective barrier qualities and very low moisture permeability.

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Tags: parylene, parylene deposition, parylene uniformity, medical parylene, medical device coating, parylene safety

Five Common Causes of Parylene Failure

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

Parylene Conformal Coatings

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

Implantable Devices and Parylene

Posted by Sean Horn on Fri, Dec 18, 2015 @ 08:40 AM

Implantable Medical Devices and the Uses of Parylene

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Tags: parylene, implantable devices, medical devices, medical device coating

What is Parylene used for?

Posted by Sean Horn on Fri, Sep 18, 2015 @ 09:08 AM

Parylene and Conformal Coatings 

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Tags: parylene, MEMS, medical device coating, COTS

Improving Bio-Compatibility with Parylene

Posted by Sean Horn on Fri, Sep 11, 2015 @ 08:39 AM

Parylene Bio-compatibility

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Tags: parylene, bio-medical, medical device coating

Best Implantable Device Coating

Posted by Sean Horn on Fri, May 01, 2015 @ 08:41 AM

Implantable devices place a special set of requirements and challenges on their coatings. The moisture and broad mixture of chemicals that are found inside of the body are challenging in and of themselves. However, the body also has needs from the coatings that are placed within it. They need to be non-irritating and inert enough to be harmless. For most applications, the best choice is USP Class VI compliant parylene coatings.

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Tags: parylene, implantable devices, bio-medical, medical device coating