3M™ Nextel™ products retain their strength and flexibility at temperatures up to 2372ºF (1300ºC), outperforming the useful limits of other high temperature textiles. With a combination of low thermal conductivity, thermal shock resistance and electrical resistance at high temperatures, Nextel products offer a proven solution for fire protection, seals and other heat resistant components.

3M Nextel Ceramic Fabrics 312 and 440 are used for a variety of high temperature sealing and heat shielding applications, performing beyond the limits of conventional high temperature textiles such as aramids, carbon, quartz and glass. They are oxidation resistant, chemically inert, lightweight, flexible, flame resistant, and electrically insulating at high temperatures. As such, they are an excellent choice for applications such as:

• Seals and gaskets
• Electrical insulation
• Furnace linings
• Heat shields
• Infrared gas burners
• Covering for high temperature resistant wire and cable

The physical properties of Nextel 312 and 440 can be found in this datasheet.