• braided with threads made of natural fibers, synthetic fibers (for example PTFE, aramide, polymer, polybenzimide azole), graphite, glass or pressed from expanded graphite resp. moulded fibrous composites
• available forms: meter goods, closed and open sealings ready to be installed applications: centrifugal and piston pumps, ventilators, agitating devices and fittings
• lids and flap sealings: wrapped with tissue made of natural fibers, synthetic fibers (for example aramide, glass) pressed out of expanded graphite
• available forms: meter goods, closed and open sealings ready to be installed

In applications with abrasive media, leakage as lubrication or as heat removal between packing and shaft is often not possible. In these cases, the impregnation of a packing has a quite special meaning.  Bad heat conductivity of the dry yarn also supplies, beside the damage of the protection sleeve like written before, the burn up of the packing.

The advantages of this packing are:

• high heat conductivity
• good starting and good emergency behaviour
• minimised shaft abrasion
• no hydrolysis
• no hardening
• easily to cut
• extremely low leakage
• strongly increased lifetime

Applications:

• Tissue: hand and manhole cocers
• Boiler bottoms and doors
• Tank dome lids and lever flaps
• Graphite: self-sealing closures (for example according to the Bredtschneider principle)