SCS Blog
Recent SCS Blogs
How to Remove Conformal Coatings
Appropriately selected and applied, conformal coatings provide essential protection for printed circuit boards (PCBs). However, removal of conformal coatings is necessary if the wrong coating material is selected relative to the PCB’s functional requirements, inadequately supporting its operating environment. Poor coating application can trigger failure mechanisms within the assembly which also necessitate removal and re-application.... Read More >>
3 Key Properties of Acrylic Conformal Coating
Acrylic resin (AR) conformal coatings are widely used because of their distinctive beneficial properties, including protecting printed circuit boards (PCBs) and similar electronics from corrosion, dirt, dust, fungus, moisture and thermal shocks. User-friendly liquid AR can be applied by brush, dip or manual/robotic spray, generally providing a fast turnaround-time. The coating’s ease of application and... Read More >>
Does Parylene De-Wet?
Liquid conformal polymers – resins of acrylic (AR), epoxy (ER), silicone (SR) and urethane (UR) – use wet application processes to attach to substrates. Most prominent of these are brushing the wet coating onto an assembly, dipping (immersing) the assembly in a bath of liquid coating or spraying the conformal film onto the designated surface.... Read More >>
Silicone Conformal Coating vs Parylene
Silicone and Parylene conformal coatings may appear worlds apart initially. However, beneath the surface disparities, remarkable similarities exist. Despite their functional differences, Parylene and silicone share a crucial commonality as two of the finest options for safeguarding your company’s products. Makeup Both silicones (Type SR) and Parylenes (Type XY) are technically polymers. However, there is... Read More >>
Conformal Coating Equipment
Several coating equipment options enhance the conformal coating process. Below are the key machines crucial for liquid coatings. Spray Booth Dedicated spray booth conformal coatings are very cost-effective for medium- and higher-level production, with easy, even film application using a high-quality spray gun. Thorough ventilation is necessary to efficiently remove fumes generated by the process.... Read More >>
5 Common Misconceptions of Parylene
There are often many questions about Parylene, its properties and its ability to protect various components across industries. There are also many Parylene misconceptions. Below is a look at the five leading misconceptions. 1. Parylene does not stick to metal. This misconception is based in truth. One drawback of this coating is that its chemical... Read More >>
Masking Boots for Conformal Coating
With proper equipment and professional expertise, liquid conformal coatings and vapor-deposited Parylene readily provide printed circuit boards (PCBs) and similar electronics a durable overlay of protective, insulative film. Parylene’s chemical vapor deposition (CVD) processes ensure the coating actually penetrates the substrate surface, generating further device security. However, the very properties that help conformal coatings safeguard... Read More >>
Urethane Conformal Coating: When Not to Use
Urethane conformal coating is a very common conformal coating choice. However, it is not suitable for all applications. Urethane conformal coatings are not an ideal solution for applications that will be in a high-vibration environment or have a high heat requirement. Because of the mechanical strength and resistance to abrasion that urethanes typically exhibit, a... Read More >>
Is Parylene a Nanocoating?
al films become less effective for coating them. Ongoing development of microelectricalmechanical systems (MEMS) and nanotechnology, has little room for the thicker conformal films provided by liquid materials, such as acrylic, epoxy, silicone and urethane. Nanocoatings are increasing in prominence, frequently surpassing micro-thin Parylene for many MEMS/nanotechnology purposes. This is surprising, since Parylene’s micron-thin coating... Read More >>
Parylene Protection of Wearable Devices
Wearable devices have become an integral component of everyday life, with expanded uses for many conventional activities. Advanced consumer electronics and med-tech – ranging from external exercise monitors for human performance to implanted cardiac pumps, defibrillators and deep-brain sensors – represent only a fraction of wearable medical devices currently applied for healthcare and treatment. Smartphones... Read More >>
