Silicone Solventless RTV Elastoplastic Conformal Coatings
DOW Silicones (formerly Dow Corning) delivers a wide variety of silicone-based polymers for diverse solutions in electric, electronic and energy applications. DOWSIL™ conformal coatings are materials applied in thin layers (typically a few mils or microns) onto printed circuits or other electronic substrates. They provide environmental and mechanical protection to significantly extend the life of the components and circuitry. DOWSIL™ conformal coatings are traditionally applied by dipping, spraying, brushing or simple flow coating and increasingly by select coating, or robotic dispensing.
Silicone conformal coatings protect electronic printed circuit boards from moisture and contaminants, preventing short circuits and corrosion of conductors and solder joints. They also minimise dendritic growth and the electromigration of metal between conductors. Additionally, the use of conformal coatings protects circuits and components from abrasion and solvents. Stress relief is also provided, as is protection of the insulation resistance of the circuit boards.
DOWSIL™ solventless RTV elastoplastic conformal coatings require atmospheric moisture to cure. This family of coatings is rapidly gaining popularity because it is more environmentally friendly than solvent-based materials. Additionally, its rapid cure rates can be dramatically accelerated by elevated heat, and it is reworkable and cost effective. These coatings, when cured, offer the optimum stress relief for components and interconnections in a variety of service environments. Coatings manufactured for controlled volatility are offered for applications where low outgassing at package level or in confined environments is necessary.
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