PBO was first developed in the 1980’s and is extremely strong and flame resistant. It is also the first organic fiber whose cross-sectional strength outperforms both steel and carbon fiber.
Zylon® PBO is a rigid-rod isotropic crystal polymer that is spun by a dry-jet wet-spinning process.
Common Types & Deniers
AS: Standard modulus
HM: High modulus
Deniers: 250, 500, 1000, 15 00, 3000
Zylon® is a trademark of Toyobo Co., Ltd.
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Compare fiber properties and technical data
Convert fiber measurements with this tool
|Property||Standard Modulus||High Modulu|
|Breaking Tenacity (g/d)||42.0||42.0|
|Specific Gravity (ratio)||1.54||1.56|
|Elongation at Break (%)||3.5||2.5|
|Tensile Modulus (g/d)||1200||1800|
|Equilibrium Moisture Regain at 55% RH (%)||2.0||0.6|
|Creep at 40 - 48% ult tensile strength (%)||0||0|
|Shrinkage dry air 177 ̊ 30 mins (%)||<1.0||<1.0|
|Fiber Selection Guide||Product Selection Guide||Compare fiber properties and technical data||View|
|Zylon® PBO||Product Bulletin||Explore product information and technical properties||View|