275 silicone oil for ultra-high vacuum diffusion pump

With very low saturated vapor pressure and excellent heat stability as well as outstanding oxidation-resistant performance.
275 silicone oil for ultra-high vacuum diffusion pump
With very low saturated vapor pressure and excellent heat stability as well as outstanding oxidation-resistant performance, the product is suitable for high vacuum industry ,such as high vacuum smelting industry ,high vacuum coating in electronic industry ,atomic energy accelerators and electron microscopes and monitors ,etc.
275 Technical Indicators
1.Appearance:colorless transparent liquid
2.Viscosity ( 25°C m2/s) :165~185
3.refractive index( 25°C): ≥1.09
4.flash point:≥243°C
5.congealing point :≤-14°C~-18°C