描述
Fomblin Y04 Very Low Viscosity PFPE Lubricant ISO VG 15
Material: PFPE (Perfluoropolyether)
Viscosity (40°C): 18.0 cSt
Viscosity Index: 65
ISO Grade: 15
Packing: 5 kg / drum
Fomblin Y04 is a very-low-viscosity perfluoropolyether (PFPE) lubricant within the Fomblin Y series. Produced by Syensqo, formerly Solvay, this fluid offers excellent high-temperature stability, good low-temperature properties, very good extreme pressure and wear characteristics, and low evaporative loss. It has a kinematic viscosity of 18.0 cSt at 40°C and 3.60 cSt at 100°C, classified as ISO VG 15 with a viscosity index of 65.
Fomblin Y04 is the lowest viscosity grade in the Fomblin Y series, making it ideal for ultra-high-speed applications requiring minimal fluid resistance and maximum heat dissipation. Its excellent EP and wear characteristics (Four Ball Wear Test 0.53 mm at 75°C, 1200 rpm, 40 kg) provide outstanding protection for precision mechanical systems. With a pour point of -58°C and a low molecular weight of 2,000 amu, Y04 delivers superior low-temperature flow performance and rapid thermal response for demanding high-speed applications.
Genuine Syensqo Imported Stock and Technical Support
We supply stable spot inventory of genuine Syensqo Fomblin Y04 PFPE lubricant. Official TDS, SDS, and batch COA documents are available for ultra-high-speed bearing applications, precision instruments, and demanding industrial lubrication systems.
Request Fomblin Y04 Quotation, TDS, SDS, and Sample
Complete SDS, COA, and customs clearance documents available
Core Advantages of Fomblin Y04 PFPE Lubricant
- Lowest viscosity in the Y series: 18.0 cSt at 40°C — ideal for ultra-high-speed, low-friction applications
- ISO VG 15 viscosity grade — the lowest viscosity grade in the Fomblin Y series
- Outstanding extreme pressure and wear characteristics — Four Ball Wear Test 0.53 mm
- Lowest pour point in the Y series: -58°C — excellent low-temperature flow performance
- Lowest molecular weight: 2,000 amu — rapid heat dissipation and minimal fluid friction
- Excellent high-temperature stability — reliable performance at elevated operating temperatures
- High chemical resistance — inert to aggressive chemicals, solvents, acids, and bases
Main Applications
- Ultra-high-speed bearings and precision instruments
- Gyroscopes and aerospace instrumentation
- Small high-speed motors and spindles
- Vacuum pump oils for demanding industrial environments
- Precision equipment requiring ISO VG 15 lubricants
- Applications requiring maximum speed and minimum friction
Full Technical Parameters
| Property | Typical Value | Test Method |
| Base Material | Perfluoropolyether (PFPE) | — |
| Visual Appearance | Clear colorless to light yellow liquid | Visual |
| Density (20°C) | 1.87 g/cm³ | ASTM D4052 |
| Average Molecular Weight | 2,000 amu | GPC |
| Kinematic Viscosity (40°C) | 18.0 cSt | ASTM D445 |
| Kinematic Viscosity (100°C) | 3.60 cSt | ASTM D445 |
| Viscosity Index | 65 | ASTM D2270 |
| Pour Point | -58 °C | ASTM D97 |
| Surface Tension (20°C) | 21 dyne/cm | — |
| Evaporation Loss (120°C/22h) | 8.0 % | ASTM D2595 |
| Four Ball Wear Test | 0.53 mm | ASTM D4172 |
| Approximate ISO Grade | 15 | — |
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 Y04 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 Y04?
Fomblin Y04 has a kinematic viscosity of 18.0 cSt at 40°C and 3.60 cSt at 100°C. It is classified as ISO VG 15 with a viscosity index of 65.
How does Fomblin Y04 compare to Fomblin Y06?
Fomblin Y04 is the lowest viscosity grade in the Y series (18.0 cSt vs 22.0 cSt at 40°C for Y06), classified as ISO VG 15 versus Y06’s ISO VG 22. Y04 has a lower pour point (-58°C vs -50°C), lower molecular weight (2,000 amu vs 2,400 amu), and superior EP performance (0.53 mm vs 0.63 mm wear), making it ideal for ultra-high-speed applications requiring maximum speed and minimum friction.
What applications is Fomblin Y04 suitable for?
Fomblin Y04 is ideal for ultra-high-speed bearings, precision instruments, gyroscopes, aerospace instrumentation, small high-speed motors, and demanding applications requiring ISO VG 15 viscosity grade PFPE lubrication.
Is Fomblin Y04 chemically resistant?
Yes. Fomblin Y04 offers excellent chemical resistance and is inert to most aggressive chemicals, solvents, acids, and bases, making it suitable for demanding environments.
What is the pour point of Fomblin Y04?
Fomblin Y04 has a pour point of -58°C, the lowest in the Y series, providing superior low-temperature flow performance for cold-start and cryogenic applications.
What technical documents are available for Fomblin Y04?
We can provide TDS, SDS, and batch COA documents to support product evaluation, import clearance, and quality assurance requirements.
Related Fomblin Y Series Lubricants
Compare Fomblin Y series lubricants for different viscosity and application requirements.
| Product Grade | Viscosity (40°C) | ISO Grade | Pour Point | Four Ball Wear | Core Application |
| Fomblin Y04 | 18.0 cSt | 15 | -58°C | 0.53 mm | Ultra-high speed, minimum friction |
| Fomblin Y06 | 22.0 cSt | 22 | -50°C | 0.63 mm | Very low viscosity, high-speed |
| Fomblin Y15 | 13.0 cSt | 68 | -45°C | 0.66 mm | Low viscosity + EP |
| Fomblin Y25 | 80.0 cSt | 100 | -35°C | 0.66 mm | High viscosity + EP |
Get Fomblin Y04 Bulk Pricing and Technical Support
We supply genuine Syensqo Fomblin Y04 very low viscosity PFPE lubricant for ultra-high-speed and precision industrial applications. Contact us for bulk pricing, sample availability, technical documents, and application support.
Request Fomblin Y04 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.




