Graphite gasket sheet

Gasket sheets use high quality expanded graphite without any adhesive or sealing elements. They can be used at high temperatures up to 3000°C in an inert atmosphere or a vacuum. We stock 1 and 2 mm thicknesses, with a dimension of 1000 x 1000 mm². These sheets are often used with rigid felts as a coating on one or both surfaces.

Principal characteristics

• Soft and flexible
• Inert, highly impermeable
• Light
• Easy to machine, cut or punch
• Heat dissipation, electrical conductivity
• Excellent chemical resistance
• Ash content : ≤ 0.15%

Gasket sheets with a volumetric mass density of 1.0 g/cm³

• Temperature resistance : Approximately 400°C in air and 3000°C in an inert environment or a vacuum

• Thermal conductivity : Parallel to the surface: 190 W/m.K, perpendicular to the surface: 5 W/m.K

• Specific heat capacity (20°C): 0.7 kJ/K.kg

• Thermal expansion coefficient (20-1000°C) : Parallel to the surface: approx. 1.10-6/K, perpendicular to the surface: approx. 50.10-6/K

• Breaking strain : ≥ 1 %

• Tensile strength : ≥ 4 N/mm²

Applications

• Thermal screens,
• Protective coating,
• Diffusion barrier,
• Anti-adhesive protection,
• Heating elements.