Product Name: Flexible Graphite Gasket
Materials: Flexible Graphite
Dimensions: Customized
Pressure: 40 bar
Carbon Content: 98%
Density: 1.0–1.1 g/cm3
Compressibility: 30%
Recovery: Min 10%
Temperature Range: -240°C to +550°C
pH Range: 0 to 14
Source: https://www.valvegasketboltnuts.com/flexible-graphite-gaskets-40-bar-98-carbon-content-custom.html