Potting Electronic and Electrical Devices for Protection with Epoxy and Polyurethane potting compounds potting encapsulation compounds electronics technology epoxy polyurethane urethane silicones thermal conductivity thermally conductive expansion Tg glass transition temperature suppliers meter-mix-dispense machines epoxies embedment moisture restech resistant casting encapsulating biwax polymer resins pottings shells molds hardness viscosity centipoises primers motionless static mixers cartridges processing thermoset plastics acrylic,low cost potting,Epoxy Urethanes asphalt hot melt polyester PC boards electronic STM bubbles shrinkage air entrapment cracking potting removal exotherm exothermic surface mount technology education An educational resource for learning potting and encapsulation of electronic and electrical devices with epoxy, polyurethane and silicone for protection against moisture and chemicals. Suppliers of potting compounds,meter mix dispense equipment and other supplies to the potting industry are included. Services of consulting, contract potting and small packaging are also presented.