SCS Blog
Recent SCS Blogs
Corrosion Protection with Parylene
Corrosion is a natural occurrence that involves chemical and electrochemical reactions that slowly deteriorate materials or components in their operating environment. The resulting damage can pose risks and incur significant repair costs. Corroded electrical contacts in printed circuit boards (PCBs) and similar assemblies pose a serious risk, potentially causing life-threatening mechanical failures in aerospace, automotive,... Read More >>
Understanding Parylene Deposition
Parylene’s deposition process is unique among conformal coatings. Unlike conventional processes where materials begin as a liquid, solid Parylene undergoes a distinctive transformation. The Parylene coating equipment converts solid Parylene powder into vapor, which subsequently adheres to the substrate. Although this innovative four-step approach presents certain challenges, it also offers significant benefits. Sublimation In the... Read More >>
Ruggedizing Electronics with Parylene
Ruggedized products are strengthened by various processes to ensure better resistance and prolonged use in extremely harsh operating conditions. These conditions exist for aerospace/aeronautic, automotive, commercial off-the-shelf (COTS), medical and military products, which require reliable performance through a disparity of functional environments that include: Safeguarding printed circuit boards (PCBs) and similar electronic assemblies that power... Read More >>
Solvent Use in Parylene Deposition
Despite being well-versed in the different types of conformal coatings, many individuals mistakenly believe that the chemical vapor deposition (CVD) process for Parylene coatings involves the use of a solvent. This misconception is debunked below. Parylene Deposition Parylenes are polymers capable of providing resilient, dielectric, micron-thin conformal coatings for an exceptional variety of products and... Read More >>
Parylene Protects Stents
Biocompatible Parylene conformal coatings provide superior protection for medical stents. As an enabling technology, Parylene has been applied to medical devices of all types as a solution to problems stemming from surface microporosity and consequent biofluid corrosion after implant. Providing a reliable barrier to chemicals and moisture, Parylene’s static and dynamic coefficients of friction are... Read More >>
Protecting Solar Panel Electronics with Parylene
As with all renewable energy technologies, electronics play a crucial role in the operation of solar (photovoltaic) panels by facilitating the transformation, transmission and monitoring of the system. Unfortunately, system electronics are often delicate, making them the weakest link in the panel setup. Harnessing the sun’s energy to generate electricity, solar panels have demonstrated their... Read More >>
6 Conformal Coating Defects and How to Best Avoid Them
Conformal coatings, comprised of polymeric materials, serve the purpose of protecting circuitry, parts, and associated components. While their primary application is safeguarding printed circuit boards (PCBs) and electronic devices, these coatings have the versatility to be applied to a range of substrates such as metal, plastic, silicone, ceramics, glass and even paper. Conformal Coating Costs... Read More >>
Crevice Penetration of Parylene
Parylene provides a robust, dielectric, micron-thin conformal coating for a considerable range of electronic devices, most prominently printed circuit boards (PCBs). Parylene’s unique chemical vapor deposition (CVD) application method synthesizes in-process, depositing gaseous Parylene deep into a substrate’s surface. CVD occurs on a molecule-by-molecule basis, conforming to all underlying contours, regardless of shape or position, to the... Read More >>
Parylene vs HumiSeal®
The conformal coating process establishes a protective barrier for product substrates. The selection of coating material is influenced by various factors: HumiSeal® is a leading provider of conformal coating materials, offering a range of coating types. Among these, the acrylic-based 1B31 stands out for its popularity due to its ease of application and protective qualities.... Read More >>
Parylene and Silicone Conformal Coatings: A Comparison
One liquid coating type that rivals the use of Parylene is silicone conformal coating (Type SR), which cures rapidly, is reliably dielectric and displays exceptional stability across a wide temperature range. These properties make it Parylene’s chief performance competitor, for many purposes. Further comparison delineates their benefits and disadvantages relative to each other. Composition While... Read More >>
