A two part, condensation cured liquid silicone system called Master Sil 150 has been developed by Master Bond, Inc (Hackensack, NJ). It can be used for the potting and encapsulation of voltage regulators, high voltage transformers, as well as optical and electronic assemblies. Master Sil 150 has good thermal stability, excellent flexibility, a Shore A hardness of 40, and its elongation at break is 230%. Low viscosity ensures complete fill-in around complicated parts to provide excellent electrical insulation and resistance to shock. The coefficient of thermal expansion is 11x10-4 cm/cm°C and its linear shrinkage is less than 0.4%.
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