PBI Fiber

PBI Fiber - POLYBENZIMIDAZOLE

First U.S. Commercial PBI Fiber Production: 1983, Celanese Corporation

Current U.S. PBI Fiber Producers: Celanese Corporation

Federal Trade Commission Definition for PBI Fiber: A manufactured fiber in which the fiberforming substance is a long-chain aromatic polymer having recurring imidazole groups as an integral part of the polymer chain. (Complete FTC Fiber Rules here.)

Basic Principles of PBI Fiber Production — PBI is prepared from tetra-aminobiphenyl and diphenyl isophthalate spun via a dry spinning process using dimethyl acetamide as the solvent.

PBI Fiber Characteristics

No melting point
Will not ignite
Retains fiber integrity and suppleness upon flame exposure
High char yield
Dyeable to dark shades with basic dyes following caustic pretreatment
Mildew and age resistant
Abrasion resistant

Major PBI Fiber Uses— PBI is suitable for high-performance protective apparel such as firemen's turnout coats and astronaut space suits and in applications where fire resistance is important.

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About Returns

If you need to return something, no problemo.

You can request a refund or an exchange or a credit, as you wish. Just examine the contents of your order upon arrival and call us right away if you need to return something for any reason. You have 30 days from the invoice date to get an RA# (Return Authorization Number).

Read more here...

Drop Shipped Items

A few items, particularly large or heavy items, we choose to have shipped directly to you from the manufacturer in order to avoid the extra shipping charges and to keep our prices as low as possible. Normally this item ships quickly (although not as fast as our own lightening fast service) and if there is any delay, we will notify you promptly. Please put this item on a order by itself since it will ship separately.

Special Order Items

This item is not one which we keep in stock, but rather will order it for you when requested. Depending on when we receive your order relative to our ordering cycle, it will take up to a couple of weeks before we can ship it to you. Obviously, this requires a bit advance planning on your part.

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