It's heavy reading but this is Why Gosen fishing braid is so good! it's made from SK71 Izanas fibre
Extremely High Strength and High Modulus
IZANAS™ has the highest level of tensile strength among commercialised organic fibers.
Ultra-High Strength
and High Modulus
IZANAS™ SK60 has the highest level value of the specific strength and modulus among commercialised organic fibers. Specifically, the brand-new IZANAS™ SK71 achieves a strength of 40cN/dtex or more.(c.a.4GPa)
![High strength](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_08.gif)
![Specific Strength vs. Modulus](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_11.gif)
![S-S chart](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_12.gif)
Light Weight(low specific gravity)
![](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_14.jpg)
The specific gravity of IZANAS™ SK60 is 0.97, which is the lowest value among super fibers and is lighter than water.
![Density of Some Fibers](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_17.gif)
High Impact Strength
IZANAS™ SK60 has an extremely high impact strength. Due to its very high energy absorption characteristics, IZANAS™ SK60 is a suitable material for protective applications or sport composites applications.
High Durability
IZANAS™ SK60 exhibits excellent flexibility and excellent abrasion resistance. Easy fabrication offers various textile applications.
Good Abrasion Resistance and Fatigue resistance
IZANAS™ has excellent abrasion and fatigue resistance. Due to its ability to be processed easily. (weaving, knitting etc.), this leads to wide applications for industrial use.
![Abrasion Resistance and Flex Life](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_21.gif)
High Light Stability and Chemical Resistance
With no degradation due to water absorption, IZANAS™ SK60 is the ideal material for ropes or nets used in marine and off-shore applications. IZANAS™ SK60 has excellent light stability and chemical resistance in a wide pH range.
Good Light Stability
IZANAS™ shows good light stability due to its chemical and highly crystallized structure. IZANAS™ can be used without special covering or coatings.
![Good Light Stability](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_23.gif)
Excellent Chamical Stability
IZANAS™ shows excellent chemical stability in a wide pH range, which prompts the application for chemical industries. Because there is no degradation from sea water absorption, IZANAS™ is an ideal material for marine and off-shore use.
![Excellent Chemical Stability (treat with 23 × 2000 hrs)](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_25.gif)
Negative expansion
IZANAS™ has a feature that it expands by lowering the temperature. IZANAS™ is an ideal material for cryogenic use that controls the dimension change of composites which is used under the room temperature and extremely low temperture.
Negative expansibility (in direction of fiber)
![](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_27.gif)
Plastic(FRP)reinforced with the following fibers
![DFRP](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_28.gif)
High heat conductivity
High heat conductivity
![High strangth polyethylene fiber (IZANAS<sub>™</sub>)](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_30.gif)
Electric characteristic
Electric characteristic
![High strangth polyethylene fiber (IZANAS<sub>™</sub>) reinforced plastic.](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_features_p/features_32.gif)
Other Characteristics
Vibration damping
IZANAS™ has excellent vibration damping characteristics.
![Vibration Damping Behavior](http://www.toyobo-global.com/seihin/dn/izanas/iz_p/iz_use_p/strong_05.jpg)
Insulation
Fundamentally a form of polyethylene, IZANAS™ possesses the same chemical properties, making it an outstanding insulator.
Environment
As indicated by its chemical formula -(CH2-CH2)n- IZANAS™ is formed from carbon (C) and hydrogen (H). Consequently, even if IZANAS™ is burned all that remains is water (H2O) and carbon dioxide (CO2) and no harmful substances are released.