Dupont's polyimide coatings are called PYRALIN.

"Parylene" is another coating developed by Specialty Coating Systems, a
subsidiary of Union Carbide Chemicals and Plastics Inc. (800) 356-8260

Dr. Kevin M. Walsh
Electrical Engineering Department, Speed Scientific School
University of Louisville, Louisville, KY 40292
(502) 852-0826
Internet address: kmwals01@starbase.spd.louisville.edu