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MSDS for G-flex 655 Epoxy Resin
MATERIAL SAFETY DATA SHEET
West System Inc.



1.
CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

PRODUCT NAME: ......................................... G/flex
®
655 Epoxy Resin.
PRODUCT CODE:.......................................... 655
CHEMICAL FAMILY: ..................................... Epoxy Resin.
CHEMICAL NAME: ........................................ Bisphenol A based epoxy resin.
FORMULA:..................................................... Not applicable.

MANUFACTURER: EMERGENCY
TELEPHONE
NUMBERS:
West System Inc.
Transportation
102 Patterson Ave.

CHEMTREC: .................. 800-424-9300 (U.S.)
Bay City, MI 48706, U.S.A.




703-527-3887 (International)
Phone: 866-937-8797 or 989-684-7286
Non-transportation
www.westsystem.com Poison
Hotline: ....................... 800-222-12222

2.
COMPOSITION/INFORMATION ON HAZARDOUS INGREDIENTS

INGREDIENT NAME
CAS #
CONCENTRATION

Bisphenol-A type epoxy resin
25085-99-8
> 50%
Bisphenol-F type epoxy resin
28064-14-4
< 50%

3.
HAZARDS IDENTIFICATION

EMERGENCY OVERVIEW


HMIS Hazard Rating:
Health - 2
Flammability - 1
Physical Hazards - 0

CAUTION! May cause allergic skin response in certain individuals. May cause moderate irritation to the skin. Cloudy-white gel with mild
odor.

PRIMARY ROUTE(S) OF ENTRY:................................................. Skin contact.

POTENTIAL HEALTH EFFECTS:

ACUTE INHALATION: ................................................................... Not likely to cause acute effects unless heated to high temperatures. If
product is heated, vapors generated can cause headache, nausea, dizziness and possible respiratory irritation if inhaled in high
concentrations.

CHRONIC INHALATION:............................................................... Not likely to cause chronic effects. Repeated exposure to high vapor
concentrations may cause irritation of pre-existing lung allergies and increase the chance of developing allergy symptoms to this product.

ACUTE SKIN CONTACT: .............................................................. May cause allergic skin response in certain individuals. May cause
moderate irritation to the skin such as redness and itching.

CHRONIC SKIN CONTACT:.......................................................... May cause sensitization in susceptible individuals. May cause
moderate irritation to the skin.

EYE CONTACT: ............................................................................. May cause irritation.

INGESTION: ................................................................................... Low acute oral toxicity.

SYMPTOMS OF OVEREXPOSURE: ............................................. Possible sensitization and subsequent allergic reactions usually seen
as redness and rashes. Repeated exposure is not likely to cause other adverse health effects.

MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE:
Pre-existing skin and respiratory disorders may be aggravated by exposure to this product. Pre-existing lung and skin allergies may
increase the chance of developing allergic symptoms to this product.

4.
FIRST AID MEASURES:

FIRST AID FOR EYES ................................................................... Flush immediately with water for at least 15 minutes. Consult a
physician.


MSDS # 655A-08a
Last Revised03JAN08 West System Inc.
Page 2 of 4
G/flex
®
655 Epoxy Resin
FIRST AID FOR SKIN .................................................................... Remove contaminated clothing. Wipe excess from skin. Remove with
waterless skin cleaner and then wash with soap and water. Consult a physician if effects occur.

FIRST AID FOR INHALATION....................................................... Remove to fresh air if effects occur.

FIRST AID FOR INGESTION ......................................................... No adverse health effects expected from amounts ingested under
normal conditions of use. Seek medical attention if a significant amount is ingested.

5.
FIRE FIGHTING MEASURES:

FLASH POINT:............................................................................... >200°F (Tag Closed Cup)

EXTINGUISHING MEDIA:.............................................................. Foam, carbon dioxide (CO
2
), dry chemical.

SPECIAL FIRE FIGHTING PROCEDURES:
Wear a self-contained breathing apparatus and complete full-body personal protective equipment. Closed containers may rupture (due
to buildup of pressure) when exposed to extreme heat.

FIRE AND EXPLOSION HAZARDS:... HAZARDOUS DECOMPOSITION PRODUCTS: During a fire, smoke may contain the
original materials in addition to combustion products of varying composition which may be toxic and/or irritating. Combustion products
may include, but are not limited to: phenolics, carbon monoxide, carbon dioxide.


6.
ACCIDENTAL RELEASE MEASURES:

SPILL OR LEAK PROCEDURES
Soak up in absorbent material or scrape up. Residual can be removed with non-flammable
solvent, but solvent should be used sparingly and with appropriate precautions.
7.
HANDLING AND STORAGE:

STORAGE TEMPERATURE (min./max.):..................................... 40°F (4°C) / 120°F (49°C)

STORAGE: ..................................................................................... Store in cool, dry place. Store in tightly sealed containers to prevent
moisture absorption and loss of volatiles. Excessive heat over long periods of time will degrade the resin.

HANDLING PRECAUTIONS:......................................................... Avoid prolonged or repeated skin contact. Wash thoroughly after
handling. Launder contaminated clothing before reuse. Avoid inhalation of vapors from heated product. Precautionary steps should be
taken when curing product in large quantities. When mixed with epoxy curing agents this product causes an exothermic, which in large
masses, can produce enough heat to damage or ignite surrounding materials and emit fumes and vapors that vary widely in composition
and toxicity.

8.
EXPOSURE CONTROLS/PERSONAL PROTECTION:

EYE PROTECTION GUIDELINES: ................................................ Safety glasses with side shields or chemical splash goggles.

SKIN PROTECTION GUIDELINES:............................................... Wear liquid-proof, chemical resistant gloves (nitrile-butyl rubber,
neoprene, butyl rubber or natural rubber) and full body-covering clothing.

RESPIRATORY/VENTILATION GUIDELINES:
Good room ventilation is usually adequate for most operations. Wear a NIOSH/MSHA approved respirator with an organic vapor
cartridge whenever exposure to vapor in concentrations above applicable limits is likely.

Note: West System, Inc. has conducted an air sampling study using this product or similarly formulated products. The results indicate
that the components sampled for (epichlorohydrin) were either so low that they were not detected at all or they were well below OSHAs
permissible exposure levels.

ADDITIONAL PROTECTIVE MEASURES: ................................... Generally speaking, working cleanly and following basic precautionary
measures will greatly minimize the potential for harmful exposure to this product under normal use conditions.

OCCUPATIONAL EXPOSURE LIMITS: ........................................ Not established for product as whole. Refer to OSHAs Permissible
Exposure Level (PEL) or the ACGIH Guidelines for information on specific ingredients.

9.
PHYSICAL AND CHEMICAL PROPERTIES:

PHYSICAL FORM: ......................................................................... Gel.
COLOR:.......................................................................................... Cloudy-white.
ODOR: ............................................................................................ Mild.
BOILING POINT:............................................................................ > 400°F.
MELTING POINT/FREEZE POINT: ............................................... No data.
VISCOSITY:.................................................................................... 336,000 cP.
pH: .................................................................................................. No data.

MSDS # 655A-08a
Last Revised: 03JAN08
West System Inc.
Page 3 of 4
G/flex
®
655 Epoxy Resin
SOLUBILITY IN WATER:............................................................... Slight.
SPECIFIC GRAVITY: ..................................................................... 1.18
BULK DENSITY: ............................................................................ 9.9 pounds/gallon.
VAPOR PRESSURE: ..................................................................... < 1 mmHg @ 20°C.
VAPOR DENSITY: ......................................................................... Heavier than air.
% VOLATILE BY WEIGHT: ........................................................... ASTM D 2369-07 was used to determine the Volatile Content of mixed
epoxy resin and hardener. Refer to t