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.  


  • Provides a barrier against leaching or blooming of elastomer bi-products 
  • Improves lubricity thus reducing friction 
  • Reduces surface tack and stickiness
  • Prevents flaking or dusting of surface
  • Resists abrasion damage, chemicals and solvents
  • Strengthens molded plastic magnetic components
  • Guarantees a uniform and ultra thin surface
  • Has little known effect on the shape or capacity of the coil form allowing for close tolerance design
  • Biocompatible
  • Moisture resistant
  • Excellent thermal properties for high temperature, high performance circuit boards
  • Rugged


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Benefits of Surface Modification:

  • Uniform 3-D treatment   
  • Chemistry control                   
  • Longer lifespan
  • Roll-to-roll capability
  • Corrosion-resistance
  • Bondable
  • Inert surface


Common Industry Applications


  • Plasma-cleaning
  • Devices including catheters, endoscopes, stents, intra-ocular lenses, etc. prior to the application of a specialty and/or lubricious coating, adhesive, or marking.


  • Plasma-cleaning and/or photolysis treatments 
  • Materials including polycarbonate, glass, CR39, TrivexTM, PMMA, and urethane, for lenses, films, depositions, MOEMs.


  • Devices for drug delivery and storage


  • Plasma-cleaning, functionalization and silane deposition treatments 
  • Micro-arrays, micro-fluidics, MEMs, etc.

Aerospace, Automotive and Commercial Products

  • Improve the adhesion of gaskets and other dissimilar materials, remove "tack" from silicon devices, and increase adhesion of elastomer material to metal, polymers and other elastomers


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