Gaskets and Sheet Jointings
Supagraf® Plain Jointing
A premium quality sheet jointing of 98% pure exfoliated graphite.
Our Ultra High Purity (99.8% pure) grade is available for nuclear industry applications.
- Widest temperature range of all our sheet jointings.
- Very easy to cut - although large gaskets may need support during carriage and fitting.
Physical properties (Standard grade)
(Typical values for 1.5mm thick sheet)
Density, Mg/m³: 1.0
Compressibility, %: 49 (ASTM F36A)
Recovery, %: 16 (ASTM F36A)
Leacheable chloride ion content, ppm: <50
Maximum temperature (oxidising media): +400°C
Maximum temperature (*inert/reducing media): +2500°C
Minimum temperature: -200°C
(* Ensure that temperatures above +400°C on atmospheric side of flange do not cause gasket to oxidise inwards from outside edge.)
Precision cut gaskets to any shape, size or quantity. In sheets: 1m x 1m, 0.5m x 1m. Sheet thicknesses: 1.0mm, 1.5mm, 2.0mm, 3.0mm. Rolls up to 60m long; width 1.0m. Roll thickness: 0.5mm.