Category overview

Polybenzimidazole (PBI)

Based on 18 products - Last update on the Jun 26, 2025

Polybenzimidazole (PBI) appears as an amber to dark brown high-performance polymer with exceptional thermal stability and mechanical strength. Key features include the highest heat resistance among commercial polymers, excellent chemical resistance, exceptional dimensional stability, inherent flame retardancy with minimal smoke generation, and good mechanical properties even at elevated temperatures. PBI excels in extreme applications including aerospace components, high-temperature filtration, firefighting equipment, and fuel cell membranes. 

PBI competes with polyimides and PEEK. The market is experiencing growing demand in hydrogen economy applications and high-temperature filtration. Sub-types include blends with polyphenylsulfone to enhance processability, acid-doped versions for proton exchange membranes, and reinforced variants for structural applications requiring maximum thermal-mechanical performance.

Properties

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GAZOLE™ 5200P

by Gharda Plastics

GAZOLE™ 5200P by Gharda Plastics is an ultra-high performance, semi-crystalline, fine powder, unreinforced PBI poly (2, 5 benzimidazole). It is a suitable for compression molding. GAZOLE™ 5200P offers standard particle size distribution with color natural brown.

GAZOLE™ 6200PF

by Gharda Plastics

GAZOLE™ 6200PF by Gharda Plastics is an ultra-high performance, semi-crystalline PBI poly (2, 5 benzimidazole) blended with polyether ketone grade with easy flow. Exhibits excellent electrical properties, excellent chemical- as well as wear- resistance, high abrasion resistance and high thermal- & chemical-stability. Has very high limiting oxygen index (LOI), heat deflection temperature (HDT) and is recognized for its non-flammable characteristics. Delivers extended high temperature mechanical performance and enables low mold wear, low corrosion & tight thickness tolerance control. Also exhibits short-term resistance to temperatures up to +350°C, high permanent service temperature up to +250°C. Provides low shrinkage, dimensional stability at elevated temperatures, has low tendency to creep, exceptional dielectric & mechanical strength. GAZOLE™ 6200PF is suitable for processing by compression molding and extrusion. Suitable for high temperature applications under extreme load and used in semiconductor applications & plasma handling equipments. Applications include electrical & electronic devices such as connectors, capacitors, sensors, bobbins and switches.

GAZOLE™ 6430CF

by Gharda Plastics

GAZOLE™ 6200G is an ultra-high performance, semi-crystalline, easy flow AB-PBI/PEK Blend grade reinforced with 30% carbon fiber. Exhibits excellent electrical properties, excellent chemical- as well as wear- resistance, high abrasion resistance and high thermal- & chemical-stability. Has very high limiting oxygen index (LOI), heat deflection temperature (HDT) and is recognized for its non-flammable characteristics. Delivers extended high temperature mechanical performance, enables low mold wear & low corrosion as well as tight thickness tolerance control. Also exhibits short-term resistance to temperatures up to +350°C, high permanent service temperature up to +250°C. Provides low shrinkage, dimensional stability at elevated temperatures, has low tendency to creep, exceptional dielectric & mechanical strength. Is suitable for processing by injection molding and extrusion. Suitable for high temperature applications under extreme load and used in semiconductor applications & plasma handling equipments. Applications include electrical & electronic devices such as connectors, capacitors, sensors, bobbins and switches.

Polybenzimidazole (PBI)