SAFETY DATA SHEET
Last Revised: 11JUN24
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: ……………………………………… WEST SYSTEM
207 Special Clear Hardener
APPLICABLE PRODUCT CODE S: ………………. 207, 207-SA, 207-SB, 207-SC, 207-SE, C 207-SA, C 207-SB, C 207-SC, C 207-SE
CHEMICAL FAMILY: ………………………………….. Polyamine mixture
INTENDED PRODUC T USES: ……………………… Curing agent for epoxy resin.
PRODUCT RESTRICTIONS: ……………………….. None identified.
SDS VERSION: …………………………………………. 207-2024a
MANUFACTURER: EMERGENCY TELEPHONE NUMBERS (24 HRS):
Gougeon Brothers, Inc. Transportation
100 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: …………….. 800-222-1222
2. HAZARDS IDENTIFICATION
Classification of Substance or Mixture
Acute toxicity, Oral, Category 4
Acute toxicity, Dermal, Category 5
Acute toxicity, Inhalation, Category 5
Skin corrosion/irritation, Category 1B
Skin sensitizer, Category 1
Germ cell mutagenicity, Category 2
Specific target organ toxicity (repeated exposure), Category 2
Acute aquatic toxicity, Category 3
Chronic aquatic toxicity, Category 2
Label Elements
Hazard Pictogram(s):
Signal Word:
DANGER
Hazard Statements:
H302 Harmful if swallowed
H313 May be harmful in contact with skin
H333 May be harmful if inhaled
H314 Causes severe skin burns and eye damage
H317 May cause an allergic skin reaction
H341 Suspected of causing genetic defects
H371 May cause damage to organs through prolonged or repeated exposure
H402 Harmful to aquatic life
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements:
P201 Obtain special instructions before use
P202 Do not handle until all safety precautions have been read and understood
P260 Do not breathe dust/fume/mist/gas/vapors/spray
P264 Wash hands thoroughly after handling
P270 Do not eat, drink or smoke when using this product
P272 Contaminated work clothing should not be allowed out of the workplace
P273 Avoid release to the environment
P280 Wear protective gloves/protective clothing/eye protection/face protection
P301 + P330 + P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302 + P303 + P352 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse or wash skin with soap and
water (or shower)
P304 + P340 IN INHALED: Remove person to fresh air and keep comfortable for breathing
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
Continue rinsing.
P308 + P313 IF exposed or concerned: Get medical advice/attention
P310 Immediately call a POISON CENTER or doctor for advice
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207 Special Clear Hardener
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P313 + P333 If irritation or rash occurs: Get medical attention/advice
P363 Wash contaminated clothing before reuse
P391 Collect spillage
P405 Store locked up
P501 Dispose of contents and container according to local, state, national and International regulations
3. COMPOSITION/INFORMATION ON HAZARDOUS IN GREDIENTS
INGREDIENT NAME CAS # CONCENTRATION (%)
Trimethylhexamethylenediamine 25620-58-0 15-40
Polyoxypropylenediamine 9046-10-0 10-30
Phenol, 4,4 -(1-methylethylidene)bis-, polymer with (chloromethyl)oxirane,
reaction products with trimethylhexamethylenediamine
111850-23-8 10-30
Isophoronediamine 2855-13-2 10-30
Hydroxybenzene 108-95-2 5-13
The exact chemical identity and/or exact percentage (concentration) of each ingredient may be held as confidential business information
(CBI). Any ingredient not disclosed in this section may have been determined not to be hazardous to health or the environment, or it may
be present at a level below its disclosure threshold.
4. FIRST AID MEASURES
FIRST AID FOR EYES ……………………………………………………………… SYMPTOMS: Causes eye burns and eye damage. RESPONSE: Flush
immediately with water for at least 15 minutes. Remove contact lenses if present and easy to do. Immediately call a POISON CONTROL CENTER
or doctor.
FIRST AID FOR SKIN ………………………………………………………………. SYMPTOMS: Causes skin burns, redness and irritation. May cause allergic
skin reaction and sensitization. RESPONSE: Immediately wash skin with soap and water. Immediately call a POISON CONTROL CENTER or
doctor.
FIRST AID FOR INHALATION…………………………………………………… SYMPTOMS: Can cause respiratory irritation, shortness of breath or cough.
RESPONSE: Remove to fresh air if effects occur and keep comfortable for breathing. Immediately consult with a physician if symptoms develop
and persist.
FIRST AID FOR INGESTION …………………………………………………….. SYMPTOMS: May cause gastrointestinal irritation or ulceration. May
cause burns of the mouth and throat. RESPONSE: Rinse mouth with water. DO NOT induce vomiting. If vomiting should occur, keep airway
clear. Immediately call POISON CONTROL CENTER or doctor.
5. FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA: ………………………………………………………… SUITABLE: Foam, carbon dioxide (CO2), dry chemical, sand, limestone
powder. NON-SUITABLE: Direct water stream.
FIRE AND EXPLOSION HAZARDS: ………………………………………….. 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: oxides
of nitrogen, carbon monoxide, carbon dioxide, volatile amines, ammonia, nitric acid. When mixed with sawdust, wood chips, or other cellulosic
material, spontaneous combustion can occur under certain conditions. Heat is generated as the air oxidizes the amine. If the heat is not
dissipated quickly enough, it can ignite the sawdust.
SPECIAL FIRE FIGHTING PROCEDURES: ………………………………… Use full-body protective gear and a self-contained breathing apparatus.
Use of water may generate toxic aqueous solutions. Do not allow water run-off from fighting fire to enter drains or other water courses.
6. ACCIDENTAL RELEASE MEASURES
EMERGENCY PROCEDURES : …………………………………………………. Keep unnecessary and unprotected personnel from entering area. Use
appropriate safety and personal protective equipment as indicated in Section 8.
MITIGATION AND CLEAN UP PROCEDURES: …………………………… Stop leak without additional risk. Isolate area. Dike and absorb with inert
material (e.g., sand) and collect in a suitable, closed container. Do not use sawdust, wood chips or other cellulosic materials to absorb the spill, as
the possibility for spontaneous combustion exists. Warm, soapy water may be used to clean residual.
ENVIRONMENTAL PRECAUTIONS: ………………………………………….. Prevent from entering into soil, ditches, sewers, waterways and
groundwater. See Section 12 for environmental impact information.
7. HANDLING AND STORAGE
STORAGE TEMPERATURE (min./max.): …………………………………… 40 F (4 C) / 90 F (32 C).
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207 Special Clear Hardener
Page 3 of 6 Last Revised: 11JUN24
STORAGE: …………………………………………………………………………….. Store in cool, dry place away from high temperatures and moisture. Keep
container tightly closed. Store in a secure location with restricted access or store locked up. Store away from incompatible materials listed in
Section 10.
HANDLING PRECAUTIONS: ……………………………………………………. Use with adequate ventilation. Do not breathe vapors or mists from heated
material. Do not breathe concentrated vapors. Avoid all skin and eye contact. Wash thoroughly after handling. When mixed with epoxy resin this
product causes an exothermic reaction, 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
ENGINEERING CONTROLS: ……………………………………………………. Use with adequate general ventilation and/or local ventilation to keep
exposures below established limits.
EYE PROTECTION GUIDELINES: …………………………………………….. Chemical splash-proof goggles or face shield.
SKIN PROTECTION GUIDELINES: ……………………………………………. Wear liquid-proof, chemical resistant gloves (nitrile-butyl rubber, neoprene,
butyl rubber or natural rubber) and full body-covering clothing.
RESPIRATORY PROTECTION GUIDELINES: …………………………….. When ventilation cannot be made adequate enough to keep exposures
below established limits, use a NIOSH approved respirator with an organic vapor cartridge, organic vapor cartridge + P100, or a multi-contaminant
cartridge, depending on specific workplace conditions. Consult with your respirator and cartridge supplier to ensure proper selection of respirator
and cartridge based on ingredients listed in Section 3 and specific workplace conditions. Use and select a respirator according the guidelines
established in OSHA 1910.134 or other applicable respiratory protection standard.
ADDITIONAL PROTECTIVE MEASURES: ………………………………….. Use where there is immediate access to safety shower and emergency eye
wash. Wash thoroughly after use. Contact lens should not be worn when working with this material. 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: ……………………………………… Exposure limits may not be established for this product as a whole. For
established exposure limits of specific ingredients in this product, or other available exposure limit information, refer to the table below.
Ingredient Name CAS# Exposure Limit Information
Trimethylhexamethylenediamine 25620-58-0 No data available
Polyoxypropylenediamine 9046-10-0 No data available
Phenol, 4,4 -(1-methylethylidene)bis-, polymer with
(chloromethyl)oxirane, reaction products with
trimethylhexamethylenediamine
111850-23-8
No data available
Isophoronediamine 2855-13-2
No data available
Hydroxybenzene 108-95-2 ACGIH TWA: 5 ppm; 19 mg m
3
; BEI
Index Substance
NIOSH REL: 5 ppm; 19 mg/ m
3
OSHA PEL: 5 ppm; 19 mg m
3
; Table Z-1
NIOSH CEILING: 15.6 ppm; 60 mg/m
3
; Danger of cutaneous
absorption
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL FORM: ………………………………………………………………….. Liquid.
COLOR: ………………………………………………………………………………… Amber
ODOR: …………………………………………………………………………………… Ammonia-like
ODOR THRESHOLD: ………………………………………………………………. No data available
pH …………………………………………………………………………………………. 10.3
MELTING POINT / FREEZING POINT ………………………………………… No data.
BOILING POINT (760mm/Hg): ………………………………………………….. > 400 F (204 C)
FLASH POINT: ……………………………………………………………………….. Estimated > 200
F (93 C) estimated based on ingredient data.
AUTO IGNITION TEMPERATURE ……………………………………………… No data.
LOWER EXPLOSIVE LIMIT (LEL) ……………………………………………… No data.
UPPER EXPLOSIVE LIMIT (UEL) ……………………………………………… No data.
VAPOR PRESSURE ………………………………………………………………… No data.
SPECIFIC GRAVITY/DENSITY (water = 1)………………………………….. 0.98
BULK DENSITY………………………………………………………………………. 8.15 lbs./gal. (0.98 kg/L)
VAPOR DENSITY (air = 1) ……………………………………………………….. No data.
EVAPORATIOIN RATE (Butyl Acetate = 1) ………………………………… No data.
WATER SOLUBILITY (% BY WT.) …………………………………………….. No data.
PARTITION COEFFICIENT, n-OCTANOL/WATER (log Pow) ………… No data.
KINEMATIC VISCOSITY: …………………………………………………………. 265.3 mm
2
/s @ 20
C
DECOMPOSITION TEMPERATURE : …………………………………………. No data available.
% VOLATILE BY WEIGHT: ………………………………………………………. ASTM 2369-07 was used to determine the Volatile Matter Content of mixed
epoxy resin and hardener. The combined VOC content for the resin and hardener system is listed below.
VOC Content
Resin/Hardener (g/L) (lb/gal)
105 / 207 ………………………………………………………………………… 9.13 0.08
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207 Special Clear Hardener
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10. STABILITY AND REACTIVITY
STABILITY: ……………………………………………………………………………. Product is stable at normal temperatures and pressures.
REACTIVITY/HAZARDOUS REACTIONS: ………………………………….. Product will not react by itself. A mass of more than one pound of product
plus an epoxy resin will cause irreversible polymerization with significant heat buildup and pressure.
INCOMPATIBILITIES: ……………………………………………………………… Avoid acids, oxidizing materials and halogenated organic compounds.
Avoid nitrous acid, nitrites and atmospheres with high nitrous oxide concentrations. Avoid sodium hypochlorite (bleach) and peroxides. External
heating or self-heating could result in rapid temperature increase and pressure build up. If such a condition were to occur in a drum, the drum
could expand and rupture violently.
CONDITIONS TO AVOID: ………………………………………………………… Avoid excessive heat.
DECOMPOSITION PRODUCTS: ……………………………………………….. Very toxic fumes and gases when burned or otherwise heated to
decomposition. Decomposition products may include, but not limited to: oxides of nitrogen, volatile amines, ammonia, nitric acid.
11. TOXICOLOGICAL INFORMATION
Ingredient Name CAS# LD50 Oral LD50 Dermal LC50 Inhalation
Trimethylhexamethylenediamine 25620-58-0 910 mg/kg No data No data
Polyoxypropylenediamine 9046-10-0 2855 mg/kg 2980 mg/kg >0.74 mg/L 8h mist
Phenol, 4,4 -(1-methylethylidene)bis-, polymer with
(chloromethyl)oxirane, reaction products with
trimethylhexamethylenediamine
111850-23-8
No data
No data
No data
Isophoronediamine 2855-13-2 1030 mg/kg >2000 mg/kg > 5.01 mg/l 4h
dust/mist
Hydroxybenzene 108-95-2 317 mg/kg 630 mg/kg (solid) 0.9 mg/l; 8h
ACUTE TOXICITY: ………………………………………………………………….. No specific toxicity data exists for this mixture. Classification is
based on acute toxicity estimation methods using ingredient data.
Oral: ……………………………………………………………………….. Category 4. Harmful if swallowed. May result in gastrointestinal
tract irritation and pain.
Dermal: …………………………………………………………………… Category 5. May be harmful in contact with skin. Can be readily
absorbed through the skin in harmful amounts.
Inhalation:………………………………………………………………… Category 5. May be harmful if inhaled.
SKIN CORROSION / IRRITATION: …………………………………………….. Category 1B. Causes severe skin burns.
SERIOUS EYE DAMAGE / IRRITATION:…………………………………….. Category 1. Causes serious eye burns and damage. Vapors can
be absorbed in eye tissue and cause damage.
RESPIRATORY SENSITIZATION : ……………………………………………… Not classified. Does not meet classification criteria.
SKIN SENSITIZATION:…………………………………………………………….. Category 1. May cause allergic skin reaction.
REPRODUCTIVE TOXICITY: …………………………………………………….. Not classified. Does not meet classification criteria.
MUTAGENICITY: …………………………………………………………………….. Category 2. A component in this product, hydroxybenzene, is suspected of
causing genetic defects.
CARCINOGENICITY: ……………………………………………………………….. Not classified. Does not meet classification criteria. Hydroxybenzene is
classified by IARC as a Group 3 Not classifiable as to its carcinogenicity to humans.
SPECIFIC TARGET ORGAN TOXICITY (Single Exposure): ………….. Not classified. Does not meet classification criteria.
SPECIFIC TARGET ORGAN TOXICITY (Repeated Exposure): …….. Category 2. Absorption of phenolic solutions through the skin may be very
rapid and can cause damage to the liver, kidneys, pancreas, spleen, and edema of the lungs.
ASPIRATION HAZARD: …………………………………………………………… Not classified. Does not meet classification criteria.
OTHER HEALTH HAZARD INFORMATION : ……………………………….. Can cause stomach irregularities based on human evidence. This product
is corrosive to skin and mucous membrane tissues and therefore excessive vapor inhalation may cause respiratory tract irritation.
12. ECOLOGICAL INFORMATION
ACUTE AQUATIC TOXICITY :……………………………………………………. Category 3. Harmful to the aquatic life. Calculated Estimate. No
specific test data available for the mixture.
CHRONIC AQUATIC TOXICITY : ……………………………………………….. Category 2. Toxic to the aquatic life with long lasting effects.
Calculated Estimate. No specific test data available for the mixture.
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PERSISTANCE AND BIODEGRADABILITY : ………………………………. No specific test data available for the mixture.
MOBILITY IN SOIL: …………………………………………………………………. No specific test data available for the mixture.
ADDITIONAL ECOTOXICITY INFORMATION : …………………………….. In the liquid, uncured state, this product may be harmful to
aquatic life with long lasting effects. Prevent release to the environment, sewers and natural waters.
Ingredient CAS# Ecotoxicity Classification Information
Trimethylhexamethylenediamine 25620-58-0 Acute Aquatic Cat. 3; Chronic Aquatic Cat. 3
Polyoxypropylenediamine 9046-10-0 Acute Aquatic Cat. 3; Chronic Aquatic Cat. 2
Phenol, 4,4 -(1-methylethylidene)bis-, polymer with
(chloromethyl)oxirane, reaction products with
trimethylhexamethylenediamine
111850-23-8 Acute Aquatic Cat. 3; Chronic Aquatic Cat. 3
Isophoronediamine 2855-13-2 Aquatic Chronic Cat. 3
Hydroxybenzene 108-95-2 Aquatic Acute Cat. 3; Aquatic Chronic Cat. 2
13. DISPOSAL CONSIDERATIONS
WASTE DISPOSAL METHOD: ………………………………………………….. Evaluation of this product using RCRA criteria shows that it is not a
hazardous waste, either by listing or characteristics, in its purchased form. It is the responsibility of the user to determine proper disposal
methods.
Incinerate, recycle (fuel blending) or reclaim may be preferred methods when conducted in accordance with federal, state and local regulations.
14. TRANSPORTATION INFORMATION
US DOT
UN NUMBER: …………………………………………………………………………. UN 2735.
SHIPPING NAME: ……………………………………………………………………. Polyamines, liquid, corrosive, n.o.s.
TECHNICAL SHIPPING NAME: …………………………………………………. Contains Polyoxypropylenediamine
HAZARD CLASS: …………………………………………………………………….. Class 8.
PACKING GROUP: ………………………………………………………………….. PG II
MARINE POLLUTANT: …………………………………………………………….. No
CANADA TDG
UN NUMBER: …………………………………………………………………………. UN 2735.
SHIPPING NAME: ……………………………………………………………………. Polyamines, liquid, corrosive, n.o.s.
TECHNICAL SHIPPING NAME: …………………………………………………. Contains Polyoxypropylenediamine
HAZARD CLASS: …………………………………………………………………….. Class 8.
PACKING GROUP: ………………………………………………………………….. PG II
MARINE POLLUTANT: …………………………………………………………….. No
IMDG
UN NUMBER: …………………………………………………………………………. UN 2735.
SHIPPING NAME: ……………………………………………………………………. Polyamines, liquid, corrosive, n.o.s.
TECHNICAL SHIPPING NAME: …………………………………………………. Contains Polyoxypropylenediamine
HAZARD CLASS: …………………………………………………………………….. Class 8.
PACKING GROUP: ………………………………………………………………….. PG II
EmS Number: ………………………………………………………………………… F-A, S-B
MARINE POLLUTANT ……………………………………………………………… Yes
ICAO/IATA
UN NUMBER: …………………………………………………………………………. UN 2735.
SHIPPING NAME: ……………………………………………………………………. Polyamines, liquid, corrosive, n.o.s.
TECHNICAL SHIPPING NAME: …………………………………………………. Contains Polyoxypropylenediamine
HAZARD CLASS: …………………………………………………………………….. Class 8.
PACKING GROUP: ………………………………………………………………….. PG II
MARINE POLLUTANT: …………………………………………………………….. Yes
15. REGULATORY INFORMATION
COUNTRY INVENTORY LIST STATUS
United States TSCA All ingredients are listed or otherwise compliant.
Europe EINECS or ELINCS All ingredients are listed or otherwise compliant.
Canada CEPA (DSL/NDSL) All ingredients are listed or otherwise compliant.
Australia AICS All ingredients are listed or otherwise compliant.
Japan ENCS All ingredients are listed or otherwise compliant.
South Korea KECI All ingredients are listed or otherwise compliant.
China IECSC All ingredients are listed or otherwise compliant.
Philippines PICCS All ingredients are listed or otherwise compliant.
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207 Special Clear Hardener
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US EPA TSCA Requirements: ………………………………………………….. No data available.
Canada WHMIS Confidential Business Information (CBI): ………….. No data available.
US EPA SARA TITLE III Reporting and Notification Requirements:
Subject to Section 302 (TPQ) ……………………………………………… Phenol = 500/1000 (lbs.). TPQ = 500 lbs. if phenol is in powder form and
has a particle size of less than 100 microns or is handled in solution or molten form, or meets the criteria for a NFPA reactivity rating of 2, 3,
or 4.
Subject to Section 304 (RQ) ……………………………………………….. Phenol RQ = 1000 lbs.
Subject to Section 311 or 312 …………………………………………….. Refer to the health and physical classifications in section 2.
Subject to Section 313 ………………………………………………………. This product contains hydroxybenzene (phenol) and is subject to the
reporting requirements of Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR Part 372.
US Federal Clean Air Act (CAA):
Phenol is regulated as a under the Federal Clean Air Act as a Hazardous Air Pollutant (HAPs).
US STATE REGULATORY INFORMATION:
The following chemicals may be specifically regulated by individual states. For details on state regulatory requirements you should contact the
appropriate state agency.
COMPONENT NAME
/CAS NUMBER STATE CODE
Phenol
108-95-2 PA, MA, NJ, IL, RI
Propylene oxide
75-56-9 < 0.002%
1
CA
1.
These substances are known to the state of California to cause cancer or reproductive harm, or both.
16. OTHER INFORMATION
REASON FOR ISSUE:........................................................................ Approval date change.
PREPARED BY: ................................................................................. Gougeon Brothers, Inc.
TITLE: ................................................................................................ Health, Safety & Environmental Manager
APPROVAL DATE: ............................................................................ 11JUN24
SUPERSEDES DATE: ........................................................................ January 3, 2022
SDS VERSION: .................................................................................. 207-2024a
OTHER HAZARD INFORMATION AND RATING SYSTEMS:
HMIS RATING NFPA 704 CODES
HEALTH: 3
FLAMMABILITY: 1
PHYSICAL HAZARD: 0
PERSONAL PROTECTION:
Approximate HMIS and NFPA Risk Ratings Legend:
0 = Low or None; 1 = Slight; 2 = Moderate; 3 = Serious; 4 = Severe
Information in this document is furnished without warranty, expressed or implied, except that it is accurate to the best knowledge of West System Inc.
The data on this sheet is related only to the specific material designated herein. West System Inc. assumes no legal responsibility for use or reliance
upon these data.
3 0
1