Ultra-high vacuum diffusion pump oil is a colorless, transparent liquid widely used in various fields that require extremely high vacuum environments. It features an extremely low saturated vapor pressure, ensuring effective operation under high vacuum conditions, making it essential in the ultra-high vacuum metallurgy industry. The oil also plays a significant role in the manufacturing of electron tubes, light bulbs, and high vacuum coatings (films).

This pump oil boasts excellent thermal stability, maintaining its physical and chemical properties at high temperatures without decomposing or generating harmful by-products, which ensures the long-term safe operation of equipment. Additionally, its superior anti-oxidation properties prevent the oil from oxidizing or degrading during use, extending replacement intervals and reducing maintenance costs.