{"product_id":"tmc-704-diffusion-pump-fluid","title":"TMC-704 DIFFUSION PUMP FLUID","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eTMC-704 Diffusion Pump Fluid by TMC Industries\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTMC-704 Diffusion Pump Fluid\u003c\/strong\u003e from \u003cstrong\u003eTMC Industries\u003c\/strong\u003e, supplied by \u003cstrong\u003eEcontrol Devices\u003c\/strong\u003e, is a silicone diffusion pump oil designed for professional applications requiring deep vacuum performance. TMC-704 is chemically equivalent to \u003cstrong\u003eDow Corning® DC-704\u003c\/strong\u003e and is a single-component, tetramethyl tetraphenyl trisiloxane clear fluid developed for achieving deep vacuum levels of \u003cstrong\u003e10⁻⁶ Torr (untrapped)\u003c\/strong\u003e and \u003cstrong\u003e10⁻⁸ Torr (trapped).\u003c\/strong\u003e It is widely used by aerospace, optical coating, glass, and vacuum heat-treating companies for demanding industrial processes.\u003c\/p\u003e\n\u003cp\u003eTMC-704 performs effectively in rugged operating conditions with quick pump-down, even after exposure to air at high temperatures. The fluid is thermally and chemically stable, helping keep pump jets free from tars and hard carbon during operation. Due to its dielectric properties, it is also used as a reliability test fluid for high-temperature applications above \u003cstrong\u003e400°F\u003c\/strong\u003e, including liquid-to-liquid thermal shock testing and as a fill fluid for chemical process control instruments.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003eTMC-704 Diffusion Pump Fluid offers several performance characteristics that make it suitable for professional vacuum applications, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSuperior oxidation, heat, and chemical resistance.\u003c\/li\u003e\n\u003cli\u003eDoes not crack under heat or when exposed to intake gas, unlike petroleum and fatty acid ester pump oils.\u003c\/li\u003e\n\u003cli\u003eDoes not emit oxidation gas.\u003c\/li\u003e\n\u003cli\u003eDoes not produce acid, tar, pitch, or other substances when the vacuum is broken during heating.\u003c\/li\u003e\n\u003cli\u003eEnables prolonged and stable operation of vacuum pumps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eTMC-704 is designed for use in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-vacuum oil diffusion pumps.\u003c\/li\u003e\n\u003cli\u003eAerospace applications.\u003c\/li\u003e\n\u003cli\u003eOptical coating operations.\u003c\/li\u003e\n\u003cli\u003eGlass manufacturing.\u003c\/li\u003e\n\u003cli\u003eVacuum heat-treating companies.\u003c\/li\u003e\n\u003cli\u003eHigh-temperature reliability testing.\u003c\/li\u003e\n\u003cli\u003eChemical process control instruments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Properties\u003c\/h3\u003e\n\u003cp\u003eTMC-704 Diffusion Pump Fluid is supplied as a \u003cstrong\u003ecolorless, odorless liquid\u003c\/strong\u003e with the following physical properties:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBoiling Point: \u003cstrong\u003e211°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eViscosity: \u003cstrong\u003e37 cSt\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpecific Gravity: \u003cstrong\u003e1.065 g\/mL\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMolecular Weight: \u003cstrong\u003e484 g\/mol\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRefractive Index: \u003cstrong\u003e1.555\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSurface Tension: \u003cstrong\u003e33.9 mN\/m\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFlash Point: \u003cstrong\u003e210°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values are measured at \u003cstrong\u003e25°C\u003c\/strong\u003e, unless otherwise specified.\u003c\/p\u003e\n\u003ch3\u003ePackaging Options\u003c\/h3\u003e\n\u003cp\u003eTMC Industries offers TMC-704 in multiple packaging sizes to suit different operational requirements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 Gallon Jug – \u003cstrong\u003e8.9 lb \/ 4 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e5 Gallon Pail – \u003cstrong\u003e44 lb \/ 20 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e55 Gallon Drum – \u003cstrong\u003e440 lb \/ 200 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSample – \u003cstrong\u003e2.2 lb \/ 1 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e275 Gallon Tote – Available Upon Request.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShelf Life and Storage\u003c\/h3\u003e\n\u003cp\u003eWhen stored in its original packaging under normal storage conditions, TMC-704 has a \u003cstrong\u003eshelf life of five years\u003c\/strong\u003e from the date of manufacture. TMC Industries also offers re-certification of the material every five years for up to twenty years.\u003c\/p\u003e\n\u003ch3\u003eDisposal and Recycling\u003c\/h3\u003e\n\u003cp\u003eThis fluid can be recycled and reused. TMC Industries provides a used fluid reclamation service that restores used fluids to like-new condition. Reclaimed fluids are tested to meet new product specifications, supplied clear and odorless, and accompanied by a Certificate of Analysis. TMC Industries also offers a 100% satisfaction guarantee on reclaimed fluids.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Econtroldevices","offers":[{"title":"Default Title","offer_id":44260544807001,"sku":null,"price":0.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/5659\/2729\/files\/241217_TMC-704_Plastic_Jug.webp?v=1785491452","url":"https:\/\/econtroldevices.com\/products\/tmc-704-diffusion-pump-fluid","provider":"Econtroldevices","version":"1.0","type":"link"}