Silicones and Electronics
Long-term, reliable protection of sensitive circuits and components is becoming more important in many of today's delicate and demanding electronic applications. Silicones function as durable dielectric insulation, as barriers against environmental contaminants and as stress-relieving shock and vibration absorbers over a wide temperature and humidity range.
In addition to sustaining their physical and electrical properties over a broad range of operating conditions, silicones are resistant to ozone and ultraviolet degradation, have good chemical stability and are available in a variety of useful forms as conformal coatings, encapsulants and adhesives. Dow Corning's broad range of general purpose and specialty products offers you a choice of materials for your application needs.
Dow Corning's line of conformal coatings includes three basic families. The newest of these, the RTV Elastomeric Coatings, are designed to provide fast to very fast room temperature curing in a soft, stress-relieving material. The next group, the RTV Elastoplastic Coatings, are either traditional or ozone-safe solvent-based coatings that provide good abrasion resistance with the expected good board protection. The third group, the Solventless Heat Cure Coatings, are fast heat-curing one-part coatings that again combine excellent protection in a soft, stress-relieving material. All conformal coatings contain a UV indicator enabling blacklight visualization of the coating.