Import Diffusion Pump Fluid — Buy in wholesale FOB from Supplier in China

Diffusion pump fluid from Chemix Specialty Chemical Co., Ltd is a synthetic hydrocarbon-based fluid designed for high-vacuum applications, specifically grade 275 as a direct alternative to DC-705. It appears as a colorless transparent liquid with a viscosity of 165 mm²/s at 25°C, a diopter value of 1.09 minimum, and a specific gravity between 1.090 and 1.100. The flash point is 243°C minimum, and its condensation point ranges from -14°C to -18°C, ensuring stable operation under cryogenic conditions. The saturated vapor pressure does not exceed 6.65×10⁻⁸ Pa, and it achieves an ultimate vacuum of 6.6×10⁻⁷ Pa, making it suitable for demanding industrial vacuum systems.

This fluid is formulated with refined hydrocarbons to minimize backstreaming and maintain thermal stability under prolonged high-temperature operation. It conforms to standard industry benchmarks for diffusion pump fluids, where low vapor pressure and high thermal resistance are critical. Typical formulations in this class include silicone-based or polyphenyl ether alternatives, but this product uses a hydrocarbon base to reduce cost while maintaining performance. The absence of additives or stabilizers beyond base refining aligns with common practice for high-purity vacuum fluids.

Buyers in semiconductor manufacturing, thin-film coating, and research vacuum systems commonly source this fluid for its reliability in maintaining ultra-high vacuum environments. It is typically supplied in 200-liter drums or 1000-liter IBC containers. The listed FOB Shanghai price is USD 27,272 per ton. Buyers should confirm packaging options, minimum order quantities, and delivery schedules directly with the supplier, as these are not specified in the listing. The product is not certified to ISO or ASTM standards unless verified by the supplier.

Chemix Specialty Chemical Co., Ltd is a supplier based in Shanghai, China, operating from 10#, 1500 Sifeng Road, Songjiang District. The company is listed as an imported supplier with harbor-tier trust signals, indicating verified export compliance and logistics capability. The listing shows no response rate or average response time, suggesting limited buyer interaction or automated communication. No details are provided about production capacity, years in business, or client base, and no certifications are claimed.

The supplier specializes in diffusion pump fluids and related chemical products for industrial vacuum systems. Its profile does not indicate in-house manufacturing, laboratory testing, or R&D capabilities. The absence of verified certifications, quality control documentation, or customer testimonials means buyers must request test reports and batch-specific data directly. The company's operational focus appears limited to export logistics and product supply without public claims of technical support or customization.