Parylene Properties

SCS Parylene conformal coatings are ultra-thin, pinhole-free polymer coatings that present quite a few high-value floor therapy properties akin to glorious moisture, chemical and dielectric barrier properties, thermal and UV stability, and dry-film lubricity. These properties make SCS Parylene coatings the perfect selection for quite a few purposes all through the medical system, electronics, transportation, protection and aerospace industries.

SCS Parylene coating properties that defend

Parylene is the generic identify for members of a novel polymer collection. These members (or variations of Parylene) every supply their very own, barely totally different, coating properties to engineers. Commercially accessible Parylene variants, together with their respective properties, embrace:

Parylene N

The essential member of the collection, Parylene N, is poly(para-xylylene), a very linear, extremely crystalline materials. Parylene N is a main dielectric, exhibiting a really low dissipation issue, excessive dielectric power, and a low dielectric fixed invariant with frequency. The crevice-penetrating means of Parylene N is second solely to that of Parylene HT®.

Parylene C

Parylene C, the second commercially accessible member of the Parylene collection, is produced from the identical uncooked materials (dimer) as Parylene N, modified solely by the substitution of a chlorine atom for one of many fragrant hydrogens. Parylene C has a helpful mixture {of electrical} and bodily properties, plus a really low permeability to moisture and corrosive gases.

Parylene D

Parylene D, the third member of the collection, is produced from the identical uncooked materials as Parylene N, modified by the substitution of chlorine atoms for 2 of the fragrant hydrogens. Parylene D is analogous in properties to Parylene C with the added means to resist barely larger use temperatures.

Parylene HT®

Parylene HT, the most recent commercially accessible variant of Parylene, replaces the alpha hydrogen atom of the N dimer with fluorine. This variant of Parylene is beneficial in excessive temperature purposes (brief time period as much as 450°C) and people through which long-term UV stability is required. Parylene HT additionally has the bottom coefficient of friction and dielectric fixed, and the very best penetrating means of the 4 variants.


ParyFree®, the most recent and a novel member of the collection, replaces a number of hydrogen atoms of the Parylene N dimer with non-halogenated substituents. This halogen-free variant affords the superior barrier properties of Parylene C and provides improved mechanical and electrical properties in comparison with different commercially-available Parylenes. ParyFree optimizes the essential mixture of barrier, electrical and mechanical properties to supply sturdy safety towards moisture, water, corrosive solvents and gases, whereas complying with halogen-free necessities of choose industries worldwide.

Parylene C-UVF®

As a result of Parylene coatings are optically clear, there’s an inherent degree of problem concerned in figuring out if a part has been coated with Parylene. Within the aerospace and protection industries, for instance, the place failure shouldn’t be an choice, prospects require a way to ensure {that a} part is certainly Parylene coated. SCS Parylene C-UVF coatings are shaped when a particular compound is included into the Parylene C deposition course of. The result’s a coating that fluoresces beneath a black mild, verifying that elements are coated and prepared to be used, whereas sustaining the identical electrical, mechanical and bodily properties of Parylene C movie.

microRESIST® Antimicrobial Parylene Expertise

SCS microRESIST Antimicrobial Parylene Expertise is a big breakthrough that mixes the advantages of biocompatible Parylene with antimicrobial properties to successfully eradicate dangerous microorganisms on coated medical gadgets. microRESIST affords producers dependable antimicrobial safety, having demonstrated better than 5 Log discount on 14 of the commonest microorganisms. For extra data on microRESIST, click on right here.

Placing SCS Parylene data to work.

Extra detailed data concerning the Parylene variants, and their respective properties and advantages, could be discovered within the SCS Parylene Properties brochure, which is obtainable for obtain within the SCS Technical Library. You can even discover extra data on SCS Parylene C-UVF® and market-specific brochures containing related properties and purposes within the library.

When you have questions on particular SCS Parylene properties, take a look at strategies and procedures, or how SCS Parylenes can profit your utility, contact SCS on-line or name +1.317.244.1200.