Construction: Square plaited from continuous filament, inorganic flexible glass fibers. Untreated.
Features: Will not shrink or swell in service and is completely incombustible.
Equipment: Gasketing material on covers or processing kettles, tanks, etc.
Recommended For: Static applications. Extremely high temperatures up to 1000°F/538°C. For sealing molten metals, acids, solvents, etc.

Construction: Fiberglass rovings tightly twisted to desired diameter.
Features: A dry, flexible rope packing.
Equipment: Furnace doors, manhole covers, etc.
Recommended For: Air, hot gases, dry steam.
Limitations: Temperatures to 1000°F/538°C.

Construction: Braided jacket of fiberglass yarns over a core of twisted fiberglass rope.
Features: More stable than FG 800.
Equipment: As a seal on furnace and gas generator doors.
Recommended For: Hot air and gases.
Limitations: Temperature to 1000°F/538°C.

Construction: Twisted fiberglass core with a double braid-over-braid jacket.
Features: More rugged and slightly firmer than FG 801.
Equipment: Hot air and gases.
Recommended For: Mild acids, alkalines, steam, brine, oil.
Limitations: Temperatures to 1000°F/538°C.
Remarks: Able to stand more mechanical abuse than FG 801.

Construction: Braid-over-braid.
Features: Stronger and more dense than FG 801 and FG 802.
Equipment: As a seal on furnace and gas generator doors wherever the firmest, strongest construction is required.
Recommended For: Hot air and gases.
Limitations: Temperatures to 1000°F/538°C.
Remarks: Stronger and firmer packing than FG 801 or FG 802. A much denser packing, capable of withstanding greater mechanical abuse.

Identical to FG 805 solid braided fiberglass rope with the exception of its square construction. May be ordered square or with a rectangular cross section.