BPG 8501
Properties
BPG 8501 is a sheet manufactured from expanded graphite foil with a carbon purity greater than 98%. It delivers excellent thermal stability, chemical resistance, and reliable sealing performance for a wide range of industrial applications.
Applications
BPG 8501 offers high compressibility and strong resistance to creep, making it an excellent choice for demanding conditions in petrochemical, chemical, process, and power plant industries. It is particularly well-suited for sealing applications in pumps, valves, and compressors where reliable performance under pressure is critical.
Typical Physical Properties
| Sheet Size | 1000 x 1000 mm |
| Sheet Thickness | 0.5 – 1.0 – 1.5 – 2.0 – 3.0 mm |
| Density | 1.00 g/cm³ |
| Carbon content | > 98% |
| Ash content | < 2% |
| Compressibility – ASTM F36 A | > 50% |
| Recovery – ASTM F36A | 11 % |
| Sulphur content | < 1200 ppm |
| Chlorine content | < 50 ppm |
Operation Parameters
| Temperature | -200°C … +500°C (most media) -200°C … +550°C (steam) |
| Pressure | 60 bar |
Product Specifications
| Media | Hot water, steam, gases, oils, acids and alkalis. Exceptions: strongly oxidising acids such as sulphuric and nitric acid in high concentrations. |
| Certifications / approvals | On demand |
Benefits
- No hardening or aging — binder-free design
- Ideal for small-size gaskets
- High compressibility adapts easily to flange irregularities