Celanex® thermoplastic polyester (PBT)

Available from Celanese Corporation

A fast-cycling resin with high strength, rigidity and toughness. Celanex PBT exhibits low creep, even at high temperatures, and resistance to a wide range of chemicals, solvents, oils and greases. When you add to this list excellent dimensional stability, low moisture absorption and powerful insulation resistance, you get a property profile that explains why Celanex PBT provided new opportunities when it was introduced.

To meet the specific needs of its diverse applications, Celanex PBT resins are supplied as unreinforced grades and in grades formulated with fiberglass and/or minerals. Flame-retarded and lubricated versions are also available in both unreinforced and reinforced grades. Among the flame-retarded products are several meeting the V-0 rating requirements of the UL standard 94 flammability test in part thicknesses as low as 0.8 mm (0.032 in). V-0 rated Celanex resins are available with high performance non-exuding flame retardant packages. Depending on the market requirements, the flame retardant system of Celanex PBT are low in migration and halogenfree.

Unfilled grades have a wide range of melt viscosities to provide processing latitude in injection molding and in extrusion techniques.

Potential applications include:

Automotive ignition and electrical system parts
E/E connectors and sockets
Switches, bobbins and motor housings and insulation
Appliance housings, handles and bases

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