SEPCO® FG4 fiberglass packing is constructed with a square braided from texturized filament, inorganic flexible glass fibers. This packing is untreated and ideal for extremely high temperatures and sealing in molten metals, acids, solvents and more.
Temperatures: 1000°F / 538°C
Static applications with extremely high temperatures. For sealing molten metals, acids, and solvents.
Will not shrink or swell in service and is completely incombustible.