DC704 Silicone Diffusion Pump Oil for Aeronautics and Nuclear Industry CAS 3982-82-9. High Vacuum Performance: Designed for high vacuum of 10-7 torr (untrapped) with quick pump down. Thermal and Chemical Stability: Keeps pump jets free of tars and hard carbon in tough applications. Colorless Transparent Liquid: Appearance is clear liquid with 100% purity. Wide Industrial Application: Suitable for electronics, optics, metallurgy, plastics, and R&D plants. Long Shelf Life: Product shelf life is 3 years when stored properly. OEM and ODM Services: OEM and ODM services are available for customization. Multiple Packaging Options: Available in 1kg bottles, 1-25kg drums, and 200kg iron drums. Global Shipping Capability: Ships from Shanghai Port to North America, Europe, and other regions.