100g Dow Corning 550 Silicone Oil Poly-Siloxane Scientific Instrument Damping & Heat Transfer Fluid & Lubricant Dampening fluid for precision and scientific instruments and apparatus. Base oil for high temperature ball bearing greases. Lubricating oil for high temperature instruments. Suitable for temperatures from -40C to 315C in thermostat systems, which should be kept clean. Impregnating oil for sintered bronze bearings in small electric motors and mechanisms exposed to high ambient temperatures. Heat-treating baths for speciality metals. Heat exchange fluid for research apparatus and instrument calibration baths. Heat transfer oil in capacitors, transformers and various electronics.