Description
TOPDA K-H Grades are perfluorinated polyether inert fluids with only carbon (C), fluorine(F), and oxygen(O) atoms on the molecular chain. They are ideal for use in vacuum pumps as sealing & lubricating fluid and working fluids especially in the systems which are exposed to strongly oxidative substances like oxygen, ozone or nitric oxides as well as highly reactive substances like halogens and hydrogen halides. Because of their high stability and safety, especially the high reliability of working under particularly harsh conditions, no working medium can be comparable to perfluoropolyether oil in such harsh environment.
Features
- EU REACH Registration
- Low vapor pressure
- Chemical inert
- Excellent solvent resistance
- High thermal stability
- Good lubricity
- Excellent compatibility with metals, plastics, elastomers
- Low surface tension
- Good radiation stability
- No flash or fire point
- Non-toxic
- Environmental friendly
Technical Index
| Properties | Units | K-H 1808 | K-H 2509 | K-H 4009 | K-H 14013 |
|---|---|---|---|---|---|
| Equivalent Product | Fomblin Y HVAC 140/13 | ||||
| Average Molecular Weight | a.m.u. | 2,800 | 3,400 | 4,400 | 7,600 |
| Density at 20°C | g/cm3 | 1.89 | 1.90 | 1.91 | 1.92 |
| Viscosity at 20°C | cSt | 185 | 285 | 474 | 1400 |
| Viscosity Index | 120 | 126 | 129 | 140 | |
| Pour Point | °C | -45 | -41 | -38 | -30 |
| Refractive Index | (nD20) | 1.300 | 1.301 | 1.304 | 1.304 |
| Specific Heat at 20°C | cal/g | 0.24 | 0.24 | 0.24 | 0.24 |
| Heat of vaporization at 200°C | cal/g | 9 | 7 | 7 | 5 |
| Working Temperature | °C | -45~190 | -40~195 | -38~200 | -30~280 |
Application
PFPE Vacuum Pump Oils Topda K-H Grades are suggested for applications requiring the highest quality vacuum such as in scanning electron and transmission microscopes, mass spectrometers, particle accelerators, ion implantation, plasma and vapor deposition processes. In addition, it is suggested for pumps handling reactive gases such as UF6, F2, oxygen, ozone and tritium, as the fluid can be used in direct contact with these gases without reaction and fluid degradation. For lower vacuum appliations, please use PFPE Vacuum Pump Oils Topda K-L grades.
Packing
N.W.1KG plastic bottle, N.W.5KG plastic pails, N.W.50KG plastic drums or other packing according to the clients’ request.
Transportation & Storage
1. Transported as non-dangerous cargo.
2. Stored in a cool, dark, dry and ventilated place.
3. Keep the container tightly closed.
Shelf life
Shelf life: 3 years.
