About
TMC-704 is chemically equivalent to Dow Corning® DC-704.
TMC-704 silicone diffusion pump fluid is single component, tetramethyl tetraphenyl trisiloxane, clear fluid developed for deep vacuum levels of 10-6 torr (untrapped) and 10-8 torr (trapped). TMC-704 diffusion pump fluid is used by many aerospace, optical coating, glass, and vacuum heat-treating companies.
TMC-704 performs well in tough, rugged applications with quick pump-down, even after exposure to air at high temperatures. It is thermally and chemically stable, which keeps pump jets free of tars and hard carbon.
Due to its dielectric properties, it is also used effectively as a reliability test fluid for high temperature (>400°F) applications using liquid to liquid thermal shock testing and as a fill fluid for chemical process control instruments.
FEATURES
- Superior oxidation, heat, and chemical resistance.
- Does not crack under heat or intake gas, unlike petroleum and fatty acid ester pump oils.
- Does not emit oxidation gas.
- Does not produce acid, tar, pitch, or other substances when vacuum is broken during heating.
- Enables prolonged and stable operation of vacuum pumps.
APPLICATIONS
- High-vacuum oil diffusion pumps.
PHYSICAL PROPERTIES
| Property | Result |
| Boiling Point @ .5 Torr | 211° C (412° F) |
| Specific Gravity @ 25° C (77° F) | 1.065 |
| Viscosity @ 25° C (77° F) | 37 cSt |
| Vapor Pressure @ 25° C (77° F) | 10-7 to 10-8 Torr |
| RI | 1.555 |
| Surface Tension | 33.9 |
| Flash Point | 210° C (410° F) |
SHELF LIFE & STORAGE
Shelf life is 60 months from the date of manufacture when stored in the original packaging materials and stored under normal conditions. TMC will re-certify material every 5 years up to 20 years.
DISPOSAL AND RECYCLING
This fluid can be recycled and reused. Help protect the environment, and don't pay for expensive disposal services. TMC Industries can reclaim your used fluorinated fluids, restoring them to like-new condition, and save you up to 50% in replacement fluids while protecting the environment, or TMC will recycle your fluid free of charge (conditions apply).
TMC Reclaimed Fluids are tested to meet new product specifications. It will be clear and odorless, and a Certificate of Analysis is issued with every order.
TMC Industries offers a 100% satisfaction guarantee on all of our reclaimed fluids. We back this up with a no questions asked refund policy. To learn more, click HERE.
DOCUMENTS
TMC-704 is chemically equivalent to Dow Corning® DC-704.
TMC-704 silicone diffusion pump fluid is single component, tetramethyl tetraphenyl trisiloxane, clear fluid developed for deep vacuum levels of 10-6 torr (untrapped) and 10-8 torr (trapped). TMC-704 diffusion pump fluid is used by many aerospace, optical coating, glass, and vacuum heat-treating companies.
TMC-704 performs well in tough, rugged applications with quick pump-down, even after exposure to air at high temperatures. It is thermally and chemically stable, which keeps pump jets free of tars and hard carbon.
Due to its dielectric properties, it is also used effectively as a reliability test fluid for high temperature (>400°F) applications using liquid to liquid thermal shock testing and as a fill fluid for chemical process control instruments.
FEATURES
- Superior oxidation, heat, and chemical resistance.
- Does not crack under heat or intake gas, unlike petroleum and fatty acid ester pump oils.
- Does not emit oxidation gas.
- Does not produce acid, tar, pitch, or other substances when vacuum is broken during heating.
- Enables prolonged and stable operation of vacuum pumps.
APPLICATIONS
- High-vacuum oil diffusion pumps.
PHYSICAL PROPERTIES
| Property | Result |
| Boiling Point @ .5 Torr | 211° C (412° F) |
| Specific Gravity @ 25° C (77° F) | 1.065 |
| Viscosity @ 25° C (77° F) | 37 cSt |
| Vapor Pressure @ 25° C (77° F) | 10-7 to 10-8 Torr |
| RI | 1.555 |
| Surface Tension | 33.9 |
| Flash Point | 210° C (410° F) |
SHELF LIFE & STORAGE
Shelf life is 60 months from the date of manufacture when stored in the original packaging materials and stored under normal conditions. TMC will re-certify material every 5 years up to 20 years.
DISPOSAL AND RECYCLING
This fluid can be recycled and reused. Help protect the environment, and don't pay for expensive disposal services. TMC Industries can reclaim your used fluorinated fluids, restoring them to like-new condition, and save you up to 50% in replacement fluids while protecting the environment, or TMC will recycle your fluid free of charge (conditions apply).
TMC Reclaimed Fluids are tested to meet new product specifications. It will be clear and odorless, and a Certificate of Analysis is issued with every order.
TMC Industries offers a 100% satisfaction guarantee on all of our reclaimed fluids. We back this up with a no questions asked refund policy. To learn more, click HERE.
DOCUMENTS
TMC-704 DIFFUSION PUMP FLUID
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- Regular price
- $525.00
- Sale price
- $525.00
- Regular price
-
Shipping Policy
Shipping Policy
Return Policy
Return Policy
Schedule B Code: 3910.00.0000
Brand & Series: TMC-704
MPN: 4091
CAS #: 3982-83-9
MIL-SPEC #: None
