{"product_id":"silicone-fluids","title":"Silicone Fluids","description":"\u003ch3\u003eSilicone 704\u003c\/h3\u003e\n\u003cp\u003eSilicone 704 is a Tetramethyltetraphenyltrisiloxane based fluid for producing high vacuums in the range 10⁻⁷ to 10⁻⁸ mbar. This fluids exhibits extreme chemical, thermal, oxidation, hydrolysis and radiation resistance. It also has extremely low back-streaming properties.\u003c\/p\u003e\n\u003cp\u003eSilicone 704 is intended for use in particularly tough, rugged applications including vapour deposition of thin films by sputtering or evaporation, electron beam operations and high vacuum furnaces, melting, degassing and sintering, refractory metals and thick film deposition. It is also suitable for all aspects of vacuum coating such as optics and automotive components and the UHV characteristics are particularly useful for thin film, surface technology, thermonuclear and plasma physics applications.\\\u003c\/p\u003e\n\u003ctable style=\"height: 176.344px; width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 50;\"\u003e\n\u003ctd style=\"height: 50; width: 50%;\"\u003eTypical ultimate vacuum achievable at 20°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 50;\"\u003e8.0x10-9mbar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 50;\"\u003e\n\u003ctd style=\"height: 50; width: 50%;\"\u003eVapour pressure @ 25°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 50;\"\u003e1x10-9mbar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eBoiling temperature at 1.3 mbar (approx)\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e215 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eViscosity cSt @ 25°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e37-42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003ePour point °C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e-34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eTFlash point °C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e\u0026gt;210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eSpecific gravity at 25°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e1.06-1.07\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eSilicone 705\u003c\/h3\u003e\n\u003cp\u003eSilicone 705 is a Pentaphenyltrimethyltrisiloxane based fluid for producing ultra high vacuums in the range 10⁻⁹ to 10⁻¹¹ mbar due to extremely low vapour pressure and back-streaming rates It exhibits extreme chemical, thermal, oxidation, hydrolysis and radiation resistance.\u003c\/p\u003e\n\u003cp\u003eSilicone 705 is intended for use where ultrahigh and ultraclean vacuum conditions are required. The UHV characteristics particularly useful for thin film, surface technology, thermonuclear and plasma physics applications as well as electron microscopes. Extreme stability and high spontaneous ignition temperature make it ideal for use in space-simulation chambers. Low vapour pressure and low backstreaming rate make cold and refrigeration traps unnecessary for pressures in the 10⁻⁸ mbar range. However with a liquid nitrogen trap ultimate pressures of 10⁻¹¹ mbar can be achieved.\u003c\/p\u003e\n\u003ctable style=\"height: 176.344px; width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 50;\"\u003e\n\u003ctd style=\"height: 50; width: 50%;\"\u003eTypical ultimate vacuum achievable at 20°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 50;\"\u003e8.0x10-11mbar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 50;\"\u003e\n\u003ctd style=\"height: 50; width: 50%;\"\u003eVapour pressure @ 25°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 50;\"\u003e2x10-11mbar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eBoiling temperature at 1.3 mbar (approx)\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e245 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eViscosity cSt @ 25°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e165-185\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003ePour point °C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e-14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eTFlash point °C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e\u0026gt;243\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px; width: 50%;\"\u003eSpecific gravity at 25°C\u003c\/td\u003e\n\u003ctd style=\"width: 50%; height: 19.5938px;\"\u003e1.09-1.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eSantovac® 5 diffusion pump fluid\u003c\/h3\u003e\n\u003cp\u003eThis synthetic fluid is a polyphenyl ether developed from fluids originally produced as lubricants for space vehicles. It has exceptionally low vapour pressure, exceptional thermal stability and a tendency to wet surfaces less readily and ‘creep’ to a lesser extent than is common with most fluids. The fluid is employed for the cleanest high vacuum and ultra high vacuum applications down to less than 10⁻⁹ mbar (for example, electron microscopes, mass spectrometers and surface physics studies) where its excellent high vacuum performance and low tendency to migrate into the pump system particularly recommend it. The fluid is chemically stable, non-corrosive, safe and non-toxic at normal operating temperatures. Fluid breakdown products (due to bombardment and so forth) tend to be electrically conducting. Lubricating qualities are good and the fluid finds application to lubricate mechanisms in vacuum systems.\u003c\/p\u003e","brand":"VACPRO - Vacuum Process Solutions","offers":[{"title":"Default Title","offer_id":57554351292798,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0120\/5321\/7338\/files\/image-2026-06-16T101620.495.png?v=1781585186","url":"https:\/\/vacpro.co.uk\/products\/silicone-fluids","provider":"VACPRO - Vacuum Process Solutions","version":"1.0","type":"link"}