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Hari Krishna Tex-Fab
FABRIC WIKI

Polybenzimidazole Fabric

Polybenzimidazole is a synthetic fiber with a high decomposition temperature and melting point. Superior stability, toughness, and fabricate-ability make it ide

HK
Hari Krishna Fabric Experts
Nov 2026
2 Min Read
100–140 GSM
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Polybenzimidazole Fabric
HK
HARI KRISHNAFABRIC WIKI
Precision Mill Weave

It is a highly chemical-resistant property.

Technical Specifications & Parameters

Specification AttributeStandard Spec
Melting pointThe fabric has no melting point and will not drip

What is Polybenzimidazole Fabric? 

  • Polybenzimidazole fabric is a synthetic fabric that has a very high decomposition temperature.
  • It does not have a melting point, has remarkable thermal and chemical stability, and does not easily catch fire. 
  • Additionally, it does not quickly ignite. Carl Shipp Marvel, an American polymer chemist, was the one who made the first discovery of it. 
  • He was looking for novel materials that could maintain their stiffness and toughness even when heated to high temperatures. 
  • Due to its high level of stability, polybenzimidazole is used to make high-performance protective clothing. 
What is Polybenzimidazole Fabric?

History 

  • In 1949, Brinker and Robinson were the first researchers to describe aliphatic polybenzimidazoles. 
  • Nevertheless, the discovery of aromatic polybenzimidazole in the 1950s, which has outstanding physical and chemical characteristics, is often ascribed to Carl Shipp Marvel. 
  • Marvel was contacted by the Material Laboratory located at Wright Patterson Air Force Base. They were seeking materials that could withstand short-term mechanical stress and would be acceptable for use in drogue parachutes. 
  • However, the heat resistance of any and all filaments that were known at the time was insufficient. 
  • While the first study relied on aromatic condensation polymers, Marvel's research focused on condensation polymers with aromatic and heteroaromatic repeating units. 
  • The amide linkage was found to be a weak link in the quest for maximum thermal stability of the polymer. 
  • This eventually led to the identification of polybenzimidazole as a useful compound.
History

What Makes it Stand Out 

Resistant

It is a highly chemical-resistant property.

Melting point

The fabric has no melting point and will not drip

Applications & Usage 

Clothing

Pants, shirts, underwear, etc.

Industrial application

Firefighter's protective apparel, protective gloves, welders' apparel, etc. 

Care Instructions 

  • Wash the fabric at normal temperature
  • Dry the fabric under sunlight or in a shade
Care Instructions

Care & Maintenance Guidelines

01

Wash the fabric at normal temperature

Wash the fabric at normal temperature

02

Dry the fabric under sunlight or in a shade

Dry the fabric under sunlight or in a shade

Frequently Asked Questions

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Hari Krishna Fabric Experts
ARTICLE AUTHOR & QUALITY AUDITOR

Hari Krishna Fabric Experts

Textile Mill & Quality Engineering Team

The Hari Krishna Textile Quality & Engineering team oversees weaving precision, GSM batch audits, and fiber testing under international ISO standards at our Surat mill facility.

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