描述
Fomblin Z25 PFPE Lubricant High VI 350 ISO VG 150
Material: PFPE (Perfluoropolyether)
Viscosity (40°C): 133 cSt
Viscosity Index: 350
ISO Grade: 150
Packing: 5 kg / drum
Fomblin Z25 is a high-performance perfluoropolyether (PFPE) lubricant from the Fomblin Z series, produced by Syensqo (formerly Solvay). It features ISO VG 150 viscosity grade, an exceptionally high viscosity index of 350, and an extremely low pour point of -75°C. With a molecular weight of 17,100 amu and evaporation loss of only 0.40% at 204°C/22h, Fomblin Z25 delivers outstanding performance across a wide temperature range, particularly in cryogenic and low-temperature environments.
Fomblin Z25 offers an exceptional balance of high viscosity index and superior evaporative loss characteristics, making it ideal for applications requiring stable viscosity across extreme temperature variations. Its ultra-low pour point ensures reliable cold-start performance in aerospace and Arctic environments, while its chemical inertness provides protection against aggressive chemicals, acids, and solvents. With a surface tension of 25 dyne/cm and four-ball wear test result of 0.9 mm, this grade provides excellent film strength and anti-wear protection.
Genuine Syensqo Imported Stock and Technical Support
We supply stable spot inventory of genuine Syensqo Fomblin Z25 PFPE lubricant. Official TDS, SDS, and batch COA documents are available for low-temperature and high-performance industrial applications requiring PFPE lubrication with exceptional viscosity index.
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Complete SDS, COA, and customs clearance documents available
Core Advantages of Fomblin Z25 PFPE Lubricant
- Exceptional viscosity index: 350 — stable viscosity across a wide temperature range
- Ultra-low pour point: -75°C — reliable performance in cryogenic and low-temperature environments
- Very low evaporation loss — only 0.40% at 204°C/22h for extended service life
- High molecular weight: 17,100 amu — excellent film strength and load-carrying capacity
- Good low-temperature viscosity — ensures reliable cold-start performance
- Exceptional chemical resistance — resistant to acids, alkalis, solvents, and aggressive chemicals
- Good extreme pressure and wear characteristics — provides superior anti-wear protection
Main Applications
- Aerospace & defense — cryogenic applications, satellite mechanisms, spacecraft components, Arctic equipment
- Low-temperature bearings — bearings operating in extreme cold environments
- Semiconductor manufacturing — cleanroom applications requiring high purity and low volatility
- Vacuum pumps — high-performance vacuum pumps requiring low vapor pressure
- Chemical processing equipment — pumps and valves handling aggressive chemicals
- High-altitude and Arctic equipment — machinery operating in sub-zero environments
Full Technical Parameters
| Property | Typical Value | Test Method |
| Base Material | Perfluoropolyether (PFPE) | — |
| Visual Appearance | Clear colorless liquid | Visual |
| ISO Viscosity Grade | 150 | — |
| Average Molecular Weight | 17,100 amu | GPC |
| Density (20°C) | 1.85 g/cm³ | ASTM D4052 |
| Kinematic Viscosity (20°C) | 223 cSt | ASTM D445 |
| Kinematic Viscosity (40°C) | 133 cSt | ASTM D445 |
| Kinematic Viscosity (100°C) | 42.0 cSt | ASTM D445 |
| Viscosity Index | 350 | ASTM D2270 |
| Pour Point | -75 °C | ASTM D97 |
| Surface Tension (20°C) | 25 dyne/cm | — |
| Evaporation Loss (204°C/22h) | 0.40 % | ASTM D2595 |
| Four Ball Wear Test (75°C/1h/1200rpm/40kg) | 0.9 mm | ASTM D4172 |
Note: All listed figures are typical values and may vary by production batch. Complete independent qualification testing is required before mass production deployment.
Handling and Storage Recommendations
| Storage Rules | Store sealed original containers in a dry, well-ventilated area away from heat sources and direct sunlight. |
| Forbidden Environments | Avoid exposure to open flames, strong oxidizing agents, and reactive metal powders. |
| System Design | Avoid mixing with other oil-based media. Maintain system cleanliness before filling. |
| Operation Protection | Maintain adequate ventilation. Wear nitrile protective gloves and anti-splash safety goggles during handling. |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | Fomblin Z25 original factory technical data sheet | Request TDS |
| SDS | Safety data sheet covering transport, storage, and handling guidelines | Request SDS |
| COA | Batch-specific certificate of analysis for incoming goods inspection | Request COA |
Frequently Asked Questions
What is the viscosity of Fomblin Z25?
Fomblin Z25 has a kinematic viscosity of 223 cSt at 20°C, 133 cSt at 40°C, and 42.0 cSt at 100°C. It is classified as ISO VG 150 with a viscosity index of 350.
How does Fomblin Z25 compare to Fomblin Z15?
Fomblin Z25 offers higher viscosity (133 cSt vs 70 cSt at 40°C) and higher molecular weight (17,100 vs 14,500 amu). Z25 has slightly lower evaporation loss at 204°C (0.40% vs 0.50%) and a slightly higher pour point (-75°C vs -78°C).
What applications is Fomblin Z25 suitable for?
Fomblin Z25 is ideal for low-temperature aerospace components, semiconductor manufacturing equipment, bearings in extreme cold environments, and applications requiring high viscosity index with excellent low-temperature fluidity.
Is Fomblin Z25 chemically resistant?
Yes. Fomblin Z25 offers excellent chemical resistance and is resistant to acids, alkalis, solvents, fuels, and aggressive chemicals.
What is the pour point of Fomblin Z25?
Fomblin Z25 has an extremely low pour point of -75°C, providing reliable performance in cryogenic and low-temperature applications.
What technical documents are available for Fomblin Z25?
We can provide TDS, SDS, and batch COA documents to support product evaluation, import clearance, and quality assurance requirements.
Related Fomblin Z Series Lubricants
Compare Fomblin Z series lubricants for different viscosity and application requirements.
| Product Grade | Viscosity (40°C) | ISO Grade | Viscosity Index | Evaporation (204°C) | Molecular Weight | Pour Point |
| Fomblin Z15 | 70 cSt | 100 | 330 | 0.50% | 14,500 amu | -78°C |
| Fomblin Z25 | 133 cSt | 150 | 350 | 0.40% | 17,100 amu | -75°C |
| Fomblin Z60 | 250 cSt | 320 | 335 | — | 19,000 amu | -70°C |
Get Fomblin Z25 Bulk Pricing and Technical Support
We supply genuine Syensqo Fomblin Z25 PFPE lubricant for low-temperature aerospace, semiconductor, and industrial applications. Contact us for bulk pricing, sample availability, technical documents, and application support.
Request Fomblin Z25 Technical Details
Disclaimer: All technical data on this page are for general guidance only and are not product specifications. Buyers must carry out independent trials and verify suitability before bulk ordering. Actual values may vary between production lots.
