描述
Fomblin W800 Ultra High Viscosity PFPE Lubricant Low Evaporation
Material: PFPE (Perfluoropolyether)
Viscosity (40°C): 277 cSt
Viscosity Index: 204
Pour Point: -39°C
Packing: 5 KG / drum
Fomblin W800 is an ultra-high-viscosity perfluoropolyether (PFPE) lubricant within the Fomblin W series. Produced by Syensqo, formerly Solvay, this fluid offers good low to high temperature performance with a very good viscosity index of 204. It has a kinematic viscosity of 277 cSt at 40°C and 41.0 cSt at 100°C, making it one of the highest viscosity grades in the Fomblin PFPE series, with a pour point of -39°C.
Fomblin W800 features exceptionally low evaporative loss: 0.1% at 149°C/22h and 0.5% at 204°C/22h, providing long service life and reduced maintenance intervals. Its high density (1.90 g/cm³ at 20°C) and chemical resistance ensure reliable performance in demanding environments where conventional lubricants would degrade.
🔹 Genuine Syensqo Imported Stock & Technical Support
We supply stable spot inventory of genuine Syensqo Fomblin W800 PFPE lubricant. Complete official TDS, SDS and batch COA documents are available for industrial and high-performance applications. Contact us for competitive bulk pricing and technical guidance on lubrication system design.
📩 Request Fomblin W800 Quotation, TDS & Sample
✅ Complete SDS & customs clearance documents provided
Core Advantages of Fomblin W800 PFPE Lubricant
- Ultra-high viscosity — 277 cSt at 40°C, one of the highest in the Fomblin series
- Exceptionally low evaporation loss — 0.1% at 149°C/22h, 0.5% at 204°C/22h
- High viscosity index of 204 — stable viscosity across wide temperature range
- Good low to high temperature performance — -39°C pour point
- High chemical resistance — resistant to aggressive chemicals and solvents
- High density — 1.90 g/cm³ at 20°C
- Excellent thermal stability — reliable performance at elevated temperatures
Main Applications
- High-load, slow-speed bearings and gearboxes
- Heavy-duty industrial equipment requiring high viscosity lubricants
- Vacuum pump oils for demanding environments
- Compressor lubrication at elevated temperatures
- Chemical process industry equipment
- Applications requiring extremely low evaporation loss and long service life
Full Technical Parameters
| Property | Typical Value | Test Method |
| Base Material | Perfluoropolyether (PFPE) | — |
| Visual Appearance | Clear Colorless to Light Yellow Liquid | Visual |
| Density (20°C) | 1.90 g/cm³ | ASTM D891 |
| Average Molecular Weight | 7400 amu | GPC |
| Kinematic Viscosity (20°C) | 800 cSt | ASTM D445 |
| Kinematic Viscosity (40°C) | 277 cSt | ASTM D445 |
| Kinematic Viscosity (100°C) | 41.0 cSt | ASTM D445 |
| Viscosity Index | 204 | ASTM D2270 |
| Pour Point | -39 °C | ASTM D97 |
| Evaporation Loss (149°C/22h) | 0.1 % | ASTM D2595 |
| Evaporation Loss (204°C/22h) | 0.5 % | ASTM D2595 |
| Four Ball Wear Test | 1.1 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 |
| 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 W800 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 W800?
Fomblin W800 has a kinematic viscosity of 277 cSt at 40°C and 41.0 cSt at 100°C, making it one of the highest viscosity grades in the Fomblin W series.
What is the viscosity index of Fomblin W800?
Fomblin W800 has a viscosity index of 204, ensuring stable performance across a wide temperature range.
What is the evaporation loss of Fomblin W800?
Fomblin W800 exhibits extremely low evaporation loss: 0.1% at 149°C/22h and 0.5% at 204°C/22h, providing long service life.
Is Fomblin W800 chemically resistant?
Yes. Fomblin W800 is chemically resistant with high heat resistance and high density, making it suitable for demanding environments.
What is the recommended storage condition for Fomblin W800?
Store sealed original containers in a dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly closed when not in use to prevent contamination.
What technical documents are available for Fomblin W800?
We supply original factory TDS, SDS and batch COA. These documents support your lubrication system qualification and quality assurance requirements.
Related Fomblin W Series PFPE Lubricants
Compare Fomblin W series lubricants for different viscosity and application requirements.
| Product Grade | Viscosity (40°C) | Viscosity Index | Pour Point | Evaporation (149°C) | Core Application |
| Fomblin W150 | 72.0 cSt | 236 | -68°C | 1.4% | Wide Temperature Range |
| Fomblin W800 | 277 cSt | 204 | -39°C | 0.1% | Ultra High Viscosity |
Get Fomblin W800 Bulk Pricing & Technical Support
We stock genuine Syensqo Fomblin W800 ultra high viscosity PFPE lubricant for demanding industrial applications. Reach out for competitive pricing, lab trial samples and complete technical certification files.
Request Fomblin W800 Lubricant 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.
