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Product Name PBO fiber ZYLONFirst issue : Aug. 10, 2000
Revised : May. 10, 2023
MSDS No. 00160F

MATERIAL SAFETY DATA SHEET
1 PRODUCT AND COMPANY IDENTIFICATION
Product Name
SUPPLIERNameAddress

PBO fiber ZYLON®

Telephone No.
Fax No.
Recommended use

TOYOBO MC Corporation
Osaka Umeda Twin Towers South, 1-13-1 Umeda, Kita-ku,
Osaka 530-8230 JAPAN
+81-6-6348-3130+81-6-6348-3413
Woven fabric, Knitted fabric, Felt, Rope&Cable, FRP, FRR, etc

Restrictions on use

Medical product

2 HAZARDS IDENTIFICATION
Most Important HazardsSpecific Hazards

Few adverse human health effects are anticipated.
Since it is high strength, the fiber can severely cut fingers or skin.
Decomposes and emits toxic fumes at higher than 600℃.

GHS Classification

Not classified

3 COMPOSITION/INFORMATION ON INGREDIENTS
Chemical Product(substance/mixture）
Chemical Name
Synonym

CAS No.
Components Contributing tothe Hazard
GHS Classification

4 FIRST-AID MEASURES
Inhalation
Skin Contact
Eye Contact
Ingestion

ArticlePoly[Benz(1,2-D:5,4-D’)bisoxazole-2,6-diyl-1,4-phenylen]
1,4-benzenedicarboxylic acid, polymer with 4,6-diamino-1, 3benzenediol dihydrochloride
60857-81-0
Substances classified as hazardous are less than 1%.
Not classified

Remove to fresh air if effect occurs. Consult a physician.
Wash off in running water or shower.
Flush eyes with plenty of water. If irritation persists, seek
medical attention.
Induce vomiting. If indisposition continues, seek medicalattention.

5 FIRE-FIGHTING MEASURESExtinguishing MediaSpecific Hazards

Protection of Firefighters

Water, Foam, Dry Chemical
Decomposes and emits toxic fumes such as hydrogen cyanide
under fire or in environments above 600℃.
Wear self-contained breathing apparatus and protective clothingat large scale fires.

6 ACCIDENTAL RELEASE MEASURES
Personal Precautions
Environmental Precautions
Methods for Cleaning up

Can severely cut or even sever fingers when entangled.
May entangle and injure wild animals.
Sweep up with a vacuum cleaner or a broom.

ZYLON is a registered trademark of TOYOBO MC

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Product Name PBO fiber ZYLONFirst issue : Aug. 10, 2000
Revised : May. 10, 2023
MSDS No. 00160F

MATERIAL SAFETY DATA SHEET
7 HANDLING AND STORAGE
HANDLINGTechnical MeasuresPrecautions
Safe Handling AdviceSTORAGE
Technical Measures
Storage Conditions
Incompatible Products
Packaging Materials

When cutting or handling short fibers, minimize the generation offine fibrils. When fine fibrils are being generated, use with a local
exhaust system.
To avoid damage to equipment or injury to personnel, equipmentused to process high strength fiber should have fail-safe
mechanisms in case of entanglement.
Good ventilation is needed at work area. If dust exposure causes
eye discomfort, use chemical goggles.
Since high strength fiber can severely cut or even sever fingers,
avoid touching a moving thread line. Avoid entanglement in amoving thread line as bodily injury may result.
No special measures needed.
To maintain the mechanical properties, the fiber is to be stored
free from exposure to light, high temperature and humidity.
None
To maintain the mechanical properties, store in light-proof
package.

8 EXPOSURE CONTROLS/PERSONAL PROTECTION

ENGINEERING MEASURES Good ventilation should be sufficient for most conditions. A local
exhaust system may be necessary for some operations.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection
When cutting or mechanically working this material, wear an
approved high-efficiency particulate respirator.
Hand Protection
In order to prevent skin-abrasion or friction-burn, put on heatresistant gloves.
Eye Protection
Use safety glasses. If dust exposure causes eye discomfort, use
chemical goggles.
Skin and Body Protection
In order to prevent skin-abrasion or friction-burn, protective
clothing should be worn.

9 PHYSICAL AND CHEMICAL PROPERTIES
Physical StateColorOdor
pHBoiling Point
Melting Point
Decomposition Temperature
Flash PointExplosion TemperatureDensity
Solubility

Solid (long fibers)
Golden yellow to reddish brown
None
Not applicableNot applicableNot applicable
600℃ and above
600℃ and above
None at ambient temperature
1.54 to 1.56 g/cm3
Insoluble in Water. Partially soluble in aqueous strong acid.

ZYLON is a registered trademark of TOYOBO MC

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Product Name PBO fiber ZYLONFirst issue : Aug. 10, 2000
Revised : May. 10, 2023
MSDS No. 00160F

MATERIAL SAFETY DATA SHEET
10 STABILITY AND REACTIVITY

Stability
StablePossible Hazardous Reactions None
Conditions to Avoid
Avoid open fire, heated environment at over 600℃.
Hazardous Decomposition
Hydrogen cyanide during incineration.
Products11 TOXICOLOGICAL INFORMATION
Acute Toxicity
Local Effects
Inhalation
Skin Contact

Eye Contact
Subchronic Toxicity
Specific Effects
Carcinogenicity
Mutagenicity

Not available
Fibrils could be inhaled and may cause respiratory irritation.
Fibers may cause slight irritation especially at clothing binding
points.
Could cause mechanical irritation upon eye contact.
Data on other types of fibers suggest that repeated excessive
inhalation exposures to air borne fibrils may cause respiratory
irritation and lung effects / injury.
Lung injury and tumors have been observed in laboratory animals
exposed to respirable fibrils of another structurally similarmaterial for two years.
Negative

12 ECOLOGICAL INFORMATION
Mobility
Persistence/Degradability
Bioaccumulation

Unlikely to move in environment.
Persists for a long time in the environment.
Unlikely to occur.

13 DISPOSAL CONSIDERATIONS
Waste from Residues

Contaminated Packaging

Dispose of in accordance with all applicable local and nationallaws and regulations.
Dispose in the same way as the material.

14 TRANSPORTATION INFORMATIONInternational Regulations
UN Classification Number
Specific Precautions

Not classified
Follow all of the laws and regulations in your country
Do not drop, overturn, or destroy containers for heavy load.
To prevent packages from breaking, keep dry and handle withcare.

15 REGULATORY INFORMATION

Follow all of the laws and regulations in your country.

16 OTHER INFORMATION
Notice

The information in this MSDS, to the best of our knowledge, isaccurate and correct. However, TOYOBO makes no warranty andassumes no liability whatsoever in connection with any use of thisinformation. The MSDS is subject to revision as new information
becomes available.

ZYLON is a registered trademark of TOYOBO MC