Pyron Brochure
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Protective Insulation Applications Aircraft Brake / Friction Applications Flame Resistant Apparel Home Furnishings

Product Forms Filament Tow • • For the manufacture of stretch-broken yarns For conversion into short cut flock and staple Staple • For use in nonwovens • For yarns on conventional spinning equipment • Excellent dispersibility in wet-laid nonwovens Outstanding thermal and fire resistant properties as a stand alone fiber or engineered fiber blends Constructions engineered for specific applications • Processable into a variety of fabrics on all types of weaving and knitting equipment. What is PYRON ® An Oxidized PAN fiber PYRON® is a registered trade name for oxidized polyacrylonitrile fibers...

PYRON chars without shrinking and remains supple after flame exposure! TGA of PYRON, Polyester & Aramid Limiting Oxygen Index PYRON PYRON + Aramid Melartiine Pelypre- Nylon Acrylic Wool Cotton Rayon Easily processed on all yarn spinning, weaving, knitting, and nonwoven equipment! PYRON® exhibits typical textile fiber stress-strain curve Non-wovens incorporating PYRON exhibit better fire performance Polyester Blend Contains no halogens and exhibits low toxic gas emissions in flame! toxic gas generation in a fire Cotton FR Polyester Neoprene ■ Hydrogen Cyanide ■ Carbon Monoxide PYRON"...

Where is PYRON ® used? oltek’s PYRON® fibers are used as the primary reinforcement Z material for the majority of aircraft brake friction materials. They are processed via a conventional textile process and converted into carbon-carbon composites by the various brake manufacturers. PYRON® fibers are used for their ability to tolerate high temperatures, which can exceed 2000° F during landings. The certified ISO 9001:2008 and AS9100C in accordance with AS9104A management system of Zoltek Corporation provide the consistent quality necessary for this safety critical application. Chances are...

PYROIST Properties . PYRON is inherently flame resistant ... an effective heat-blocking & fire barrier material PYRON" retains its appearance, hand and textile characteristics after open flame exposure. PYRON * does not burn* melt or drip, it chars without shrinking, self-extinguishes, and remains supple after flame exposure. form stable char structures Molecules of most fibers decompose when heat limit is exceeded

Sales Offices Manufacturing Locations Zoltek Corporation United States 3101 McKelvey Road St. Louis, Missouri 63044 T: 314-291-5110 F: 314-291-8536 www.zoltek.com sales@zoltek.com H-2537 Nyergesujfalu Hungary T: 36-33-536-021 europe-sales@zoltek.com 535 Shen Xu Rd. Ya Ger International Conference Center, 1611 Suzhou, China T: 15-19-5675602 china-sales@zoltek.com South Korea Room 905, 101 dong Yesung Uptopia 186-7 Guro-gu Seoul, Korea 152-848 T: 82-2-785-0435 korea-sales@zoltek.com 11 Research Park St. Charles, Missouri 63304 1221 Fulwiler Road Abilene, Texas 79603 Zoltek Prepreg 27 Guenther...