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. 

Read More

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:

Read More

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.

Read More

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.  

Read More

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.

Read More

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

Parylene: Protecting Life-Enhancing Medical MEMS Technologies

Posted by Sean Horn on Wed, Jan 15, 2014 @ 11:07 AM

Driving development of such emerging areas as microfluidics, advanced bio-sensing, capsule endoscopy, and personalized medicine, microelectromechanical systems (MEMS) are enabling an array of breakthroughs that promise to enhance patient care and outcomes.  Protecting sensitive MEMS products from the harsh conditions both inside the body and out is Parylene conformal coating, which is helping to bring these futuristic technologies to fruition.

Read More

Tags: parylene, Medical conformal coatings, Parylene and MEMS, medical parylene

Parylene: Making a Difference Across Many Markets

Posted by Sean Horn on Fri, Nov 22, 2013 @ 08:36 AM

Parylene conformal coatings are used in many different industries. With their hardness, chemical inertness and ability to perfectly coat any surface, they have expanded well beyond their original military and aerospace applications. Whether it's a protective coating for an LED or a protective shell around a coronary artery stent, the compound is found in places where you might not expect to find it.

Read More

Tags: parylene, parylene for LEDs, medical parylene

Improving Patient Outcomes with Parylene-Coated Stents

Posted by Sean Horn on Wed, Sep 04, 2013 @ 07:04 AM

Coronary stents are tubular medical implants that serve as a scaffold to open clogged or narrowed arteries in an effort to increase blood flow and reduce the potential for adverse cardiac events such as heart attacks. And providing critical support to these support structures is parylene conformal coating.

Read More

Tags: parylene, parylene conformal coating, medical parylene, medical devices

Three Common Medical Applications for Parylene

Posted by Sean Horn on Tue, Jul 30, 2013 @ 09:32 AM

Parylene conformal coating boasts a bevy of benefits and properties that make it an appealing choice for a variety of medical device applications. Chief among parylene’s advantages for medical applications, however, is that it meets USP Class VI and ISO 10993 biocompatibility requirements—a characteristic that is essential for many critical medical products and that other types of conformal coating sometimes lack.

Read More

Tags: parylene, parylene conformal coating, medical parylene, medical parylene uses, medical devices

Parylene for use in Bio-Medical implantable devices

Posted by Sean Horn on Tue, Jun 12, 2012 @ 10:52 AM

Whenever implantable devices come into contact with the human body, long term protection against body fluids, enzymes, proteins, and lipids is vital.  Bio-medical surfaces typically require coating to protect from moisture, chemicals, and other potentially harmful substances.

 A downfall for wet chemistry, liquid coatings such as silicones, acrylics, epoxy, or urethanes is that they do not meet bio-compatibility requirements and cannot be applied with precise control.  On the contrary, parylene does not out-gas and is very effective against the passage of contaminants from both the body to substrate or substrate to body.

Read More

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