Parylene is the generic name used to describe a family of polymers based on polyxylene. It is a conformal coating applied in thin layers (typically a few mills or fractions of a mm) through dipping, spraying or simple flow coating.
Parylene is formed through a pyrolisis of a dimer. The dimer is introduced into a vacuum change and is converted to a reactive vapor. This is done at very high temperatures with the resulting material being in a monomer form. As the monomer is passed over room temperature objects, the vapor rapidly coats the material with the polymer.
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