A Swiss company created in 1979 offering a technological solution to a demand arising from the highly demanding watch industry, Comelec has grown its reputation over the years thanks to our expertise and the high quality of our services. By focusing all our resources and skill on the development and use of Parylene coating, we have become the European leader in the field.
Seeking to better meet the specific needs of an extremely extensive range of applications for Parylene, we continue to expand our services based on a spirit of partnership with each of our clients.
Our proficiency in plasma technologies makes new applications possible in diverse cutting-edge industries such as microelectronics or medical technologies.
We are glad to inform you that the Parylene C is a food contact approved substance and is registered through the FCN nr 001777 at the US Food and Drug Administration...
Treatment services are our main business. We treat your items in a controlled environment meeting your specifications. We guarantee customised, optimal surface activation.
Comelec has a machine pool with various chamber sizes allowing us to meet clients’requirements for trials or for large-scale production. Based on your needs, we offer five types of Parylene ranging from the simplest chemical structure to fluorinated Parylene resistant to high temperatures.
Comelec has short turnaround times for treatment services. The standard time frame is ten business days, with expedited service available upon request. All parameters and operations are recorded for each treatment to ensure complete traceability in line with our quality management system.
GENERAL APPEARANCE : Parylene is the generic name for a family of polymers with more than 20 variations. Only five of these are widely used. Thanks to its excellent mechanical, electrical and physicochemical properties, Parylene is used in a wide range of cutting-edge sectors. In contrast to other protective coatings which are painted, immersed or pulverised on a substrate, Parylene is applied using a process of evaporation in a vacuum chamber. During this process, a precursor called a “dimer” which comes in powder form, is heated at around 150°C. The dimer thus goes from a solid state to a gas ( sublimation ). The following step involves splitting the dimer into two active monomers. This separation occurs at 650°C in a tubular oven. Upon arrival in this chamber, the gaseous monomer spontaneously polymerises when it comes into contact with the substrate. Finally, gases that have not reacted are caught in a liquid nitrogen trap between -90 °C and -120 °C. The process uses neither a catalyser nor toxic additives and has a conversion rate of nearly 100 %.
Parylene is a highly technical coating that is ultra-thin and transparent, physically and chemically neutral, inert, biocompatible, insulating and protective, of a thickness that can be sized both easily and precisely ( from 50 nm to 100 microns ). It is totally uniform, pinhole-free and can be applied to small technical components. One of its most remarkable advantages is its form-fitting and penetrating nature.
The combination of these qualities make it an extremely interesting player in the most demanding technological fields, including electronics, micro-electronics, space and aeronautics, medical technologies, pharmacology (elastomers, silicone and plastics), sensors and mems, nanotechnologies, micromechanics, magnets and ferrites.