BPG 8502
Properties
BPG 8502 is a sheet produced from expanded graphite foil with a carbon purity above 98% and enhanced oxidation resistance. It provides superior durability, chemical compatibility, and reliable sealing performance in high-temperature, demanding industrial environments.
Applications
BPG 8502 combines high compressibility with excellent resistance to creep, ensuring reliable performance in the most demanding environments. It is ideally suited for petrochemical, chemical, process, and power plant industries, with proven sealing capability in pumps, valves, and compressors.
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 | < 750 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/tests | BAM, Shell MESC 85/203 |
Benefits
- No hardening or aging — binder-free design
- Ideal for small-size gaskets
- High compressibility adapts to flange irregularities