Why Use Silicone (SR) Conformal Coatings?
Silicone conformal coatings are most widely used in high temperature environments due to their innate ability to withstand prolonged exposure to higher temperatures compared to all other conformal coating chemistries. This characteristic has made them one of the primary choices for under the hood automotive applications where temperature is critical. They are also capable of being applied in thicker films making them useful as a vibration dampening / isolation tool if the coated assembly is to be placed in a high vibration environment.
Silicone-based conformal coatings can be either tough, abrasion resistant, or soft, stress-relieving materials, depending on the formulation. They are most recognized for their stability over a wide temperature range and during temperature cycling. These conformal coatings provide good moisture and corrosion resistance and are available as both solvent-based and 100% solids formulations. The 100% solids materials can be cured with heat, moisture, or UV. Reworking can be a significant issue but chemical strippers are available that enable this process to varying degrees of success. As with epoxies and urethanes, there are some handling issues with silicone coatings, specifically if they are moisture cure in nature.
If you would like to know more the different conformal coating types, silicone conformal coatings or other products and services offered and supported by SCH Technologies, please do not hesitate to contact us
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