After special chemical process, it will inflate into wormlike when expandble graphite in high temperature for an instant. Property: it owns favorable dilatability, porosity, temperature resistance at a large range (-200~3000℃) when isolated from oxygen and stable chemical property under high temperature, high pressure and radiation. Use: it is adequate for senior airproof material and fire retardant in fire control. And worm powder use in battery, deadening, heat preservation.
technic index for expandable graphite