Color White Code
| Color White Code | Bestfluor® B275 | Bestfluor® B290 |
| Hardness | 75 | 90 |
| Temperature Range | -15°C ~ +260°C | |
| Color white perfluoroelastomer, to avoid contamination of the carbon black in manufacturing process. It resists to the chemicals that include strong oxidants, acids, alkalis, ethers, esters, ketones, and other various additives. It can be used in a single or mixed environment where multiple chemicals are present. Excellent heat water and steam properties. | ||
Application Range
- Sealing components: O-rings, gaskets
- Oil & gas: Oilfield parts, formulatable for rapid gas decompression (RGD) and compliant with NORSOK
- Semiconductor industry: Semiconductor equipment seals and components
- Chemical industry: Chemical-resistant seals for severe corrosion, high temperature and high pressure conditions
Characteristics
- Continuous service temperature: 260°C
- Extremely low compression set: 6.0% at 200°C×70h (button), 19% at 230°C×70h (O-ring)
- Mechanical properties: tensile strength 23.1MPa, elongation at break 180%, Shore A 74
- Excellent heat aging resistance: no hardness change after aging at 250–260°C
- Outstanding chemical resistance: resistant to hydrocarbons, acids, alkalis, alcohols, ketones, esters, amines, oils and steam; volume change < 5% in most media
- Good processability; customizable for rapid gas decompression (RGD)