| Discovered in the
1940s, parylene is a polymer created from a chemical compound
known as dimer, which is in powder form. When heated, it
undergoes pyrolysis, is transformed into a gaseous state (now a
monomer), cooled, and then introduced to a vacuum chamber where
it polymerizes and becomes a film, which is deposited on
virtually any available surface. Polymerization occurs at a very
low pressure and at near room temperature. The entire process is
known as CVD, or Chemical Vapor Deposition. Click
here for
more information on the Parylene application process. This
film is actually parylene, which has bonded during the
deposition process and becomes a thin protective coating. Unlike
liquid coatings, parylene completely penetrates all crevices and
uniformly coats surfaces such as sharp points, cavities, edges,
corners and even the minutest pores. It conforms to almost any
exposed surface and is pinhole free. Parylene provides
unsurpassed barrier protection against organic as well as
inorganic compounds. Click
here
for more information on Parylene properties.
Since the coating process takes place at ambient temperature
in a mild vacuum, and because of parylenes conformal properties,
it has a wide variety of applications. |
Parylene is widely used to coat:
-
Aerospace and
Aviation Electronics and Other Components
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Electronic
Components
(PCB, Motors, Assemblies)
-
Glass
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LEDS
(Displays, SMD, Circuit Arrays)
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Medical Devices
and Instruments
(Syringes, Catheters, Implants)
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MEMS
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Military and
Defense Parts
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Nanotech
-
Rare Earth Magnets
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Semiconductor
Products
(Probes, Membranes, Other)
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Silicone Gaskets,
Seals, O-Rings
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Wire and Cable
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