The History of Parylene

The discovery of Parylene is not one that happened by chance. Many years of scientific and engineering research went into the discovery and development of Parylene coatings. Parylene coating was first developed in 1947 when a physical chemist in Great Britain, Michael Szwarc, was experimenting with the common solvents in the xylene family. He discovered that the pyrolysis of xylenes, under vacuum formed thin polymer films with very interesting properties.

Parylene coatings can be used for a variety of applications thanks to the following properties:

  • Optically transparent
  • Pin-hole free
  • USP Class VI biocompatible
  • Relatively thermally stress-free
  • Excellent abrasion and cut resistance
  • Hydrophobic
  • Salt Resistant
  • Fungus and bacteria resistant

In the late 1960s, William Gorham, at Union Carbide, devised an efficient method of depositing these films on surfaces. This ushered in age of Parylene coatings deposited by Chemical Vapor Deposition systems. Parylene film is an inert linear chained polymer. It is essentially a long, high molecular weight chain of Carbon, Hydrogen and sometimes Chlorine, Fluorine and other compounds attached to an aromatic carbon ring structure.

KISCO Parylenes can be suited to fit the needs of a variety of different industries. Additionally, KISCO makes it own Parylenes, Parylene N, C, D, A, AM, SR, SF and many more to come in the future. KISCO not only makes the purest Parylenes on earth, but we also make our own CVD machines to deposit the Parylene coatings. With operations in many countries around the world, we can meet any requirements you may have, whether they are scientific, engineering, manufacturing or geographical in nature.