SAFETY DATA SHEET
Last Revised: 03JAN22
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: ……………………………………… PRO-SET
HTP-280 Hardener
APPLICABLE PRODUCT CODES: ………………. HTP-280, HTP-280-1, HTP-280-2, HTP-280-3, HTP-280-4, HTP-280-5
CHEMICAL FAMILY: ………………………………….. Polyamine-imidazole mixture.
INTENDED PRODUCT USES: ……………………… Curing agent for epoxy resins.
PRODUCT RESTRICTIONS: ……………………….. None identified.
SDS VERSION: …………………………………………. HTP-280-2022a
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: 888-377-6738 or 989-684-7286 Non-transportation
www.prosetepoxy.com Poison Hotline: …………….. 800-222-1222
2. HAZARDS IDENTIFICATION
Classification of Substance or Mixture
Acute toxicity, Oral, Category 4
Skin corrosion/irritation, Category 1B
Skin sensitizer, Category 1
Eye damage/irritation, Category 1
Carcinogenicity, Category 2
Specific target organ toxicity (repeated exposure – oral), 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
H314 Causes severe skin burns and eye damage
H317 May cause an allergic skin reaction
H351 Suspected of causing cancer
H372 May cause damage to organs through prolonged or repeated exposure if swallowed
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements:
Prevention
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/gas/mist/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
Response
P301 + P330 + 331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303 + 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 IF INHALED: Remove person to fresh air and keep comfortable for breathing
P305 + P351 + P338 + P310 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 attention/advice
P310 Immediately call POISON CENTER or doctor.
P333 + P313 If irritation or rash occurs: Get medical attention/advice
P362 + P364 Take of contaminated clothing and wash it before reuse
PRO-SET
HTP-280 Hardener
Page 2 of 6 Last Revised: 03JAN22
P391 Collect spillage
Storage
P405 Store locked up.
Disposal
P501 Dispose of contents and container according to local, state, national and International regulations
Other Hazards
None known.
3. COMPOSITION/INFORMATION ON HAZARDOUS INGREDIENTS
INGREDIENT NAME CAS # CONCENTRATION (%)
Isophoronediamine 2855-13-2 45-70
Methylenebiscyclohexanamine, 4,4 – 1761-71-3 30-60
2-ethyl-4-methylimidazole 931-36-2 1-5
4-Methylimidazole 822-36-6 0.1-1.0
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. Seek medical attention if symptoms persist or you feel
unwell.
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. 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, nitrosamines. 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).
PRO-SET
HTP-280 Hardener
Page 3 of 6 Last Revised: 03JAN22
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.
HANDLING PRECAUTIONS: ……………………………………………………. Use with adequate ventilation. Do not breathe vapors or mists from heated
material. Avoid exposure to concentrated vapors. Avoid 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. Do not breathe vapors or fumes from uncontrolled exotherming masses.
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
Isophoronediamine 2855-13-2 No data available
Methylenebiscyclohexanamine, 4,4 – 1761-71-3 No data available
2-ethyl-4-methylimidazole 931-36-2 No data available
4-Methylimidazole 822-36-6 No data available
9. PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL FORM: ………………………………………………………………….. Liquid.
COLOR: ………………………………………………………………………………… Slight amber
ODOR: …………………………………………………………………………………… Ammonia-like
ODOR THRESHOLD: ………………………………………………………………. No data available
pH …………………………………………………………………………………………. 11.74
MELTING POINT / FREEZING POINT ………………………………………… No data.
BOILING POINT (760mm/Hg): ………………………………………………….. > 400 F (204 C) estimated based on similar product.
FLASH POINT: ……………………………………………………………………….. Estimated > 200
F (93 C) estimated based similar product.
AUTO IGNITION TEMPERATURE ……………………………………………… No data.
LOWER EXPLOSIVE LIMIT (LEL) ……………………………………………… No data.
UPPER EXPLOSIVE LIMIT (UEL) ……………………………………………… No data.
VAPOR PRESSURE ………………………………………………………………… < 1 mmHg @ 20 C (estimated based on ingredient data).
SPECIFIC GRAVITY/DENSITY (water = 1)......................................... 0.94
BULK DENSITY.................................................................................. 7.85 lbs./gal. (0.94kg/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: ................................................................... 36.1 (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)
HTP-180 / HTP-280 .................................................................... 1.28 0.01
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.
PRO-SET
HTP-280 Hardener
Page 4 of 6 Last Revised: 03JAN22
INCOMPATIBILITIES: ........................................................................ Avoid organic and mineral acids, oxidizing materials, halogenated organic
compounds (e.g., methylene chloride), nitrosating agents, sodium hyprochlorite. 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, nitrosamines.
11. TOXICOLOGICAL INFORMATION
Ingredient Name CAS# LD50 Oral LD50 Dermal LC50 Inhalation
Isophoronediamine 2855-13-2 1030 mg/kg >2000 >5.01 mg/l 4h mist
Methylenebiscyclohexanamine, 4,4 – 1761-71-3 380 mg/kg >1000 No data
2-ethyl-4-methylimidazole 931-36-2 731-1000 mg/kg >400 mg/kg No data
4-Methylimidazole 822-36-6 350-751 mg/kg 440 mg/kg No data
Note: Results in this table were derived using the appropriate rat and rabbit species unless otherwise noted.
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 cause gastrointestinal
irritation or ulceration. May cause burns of the mouth and throat.
Dermal: …………………………………………………………………… Not classified. Does not meet classification criteria.
Inhalation:………………………………………………………………… Not classified. Does not meet classification criteria.
SKIN CORROSION / IRRITATION: …………………………………………….. Category 1B. Causes severe skin burns. Effects may be
immediate. May cause persistent irritation or dermatitis.
SERIOUS EYE DAMAGE / IRRITATION:…………………………………….. Category 1. Causes serious eye damage. May cause blurred
vision. May cause corneal damage resulting in vision impairment or even blindness.
RESPIRATORY SENSITIZATION : ……………………………………………… No data available.
SKIN SENSITIZATION:…………………………………………………………….. Category 1. May cause allergic skin reaction..
REPRODUCTIVE TOXICITY: …………………………………………………….. Not classified. Does not meet classification criteria.
MUTAGENICITY: …………………………………………………………………….. Not classified. Does not meet classification criteria.
CARCINOGENICITY: ……………………………………………………………….. Category 2. Suspected of causing cancer.
A component in this product, 4-Methyleimidazole, present at less than 0.2%, is suspected of causing cancer and is listed by IARC as a Group 2B
carcinogen. Under the conditions of 2-year NTP feed studies, there was no evidence of carcinogenic activity of 4-Methylimidazole in male rats
exposed to 625, 1,250 and 2,500 ppm. There was equivocal evidence of carcinogenic activity of 4-Methylimidazole in female rats based on
increased incidences of mononuclear cell leukemia. There was clear evidence of carcinogenic activity of 4-Methylimidazole in male and female
mice based on increased incidences of alveolar/bronchiolar neoplasms.
SPECIFIC TARGET ORGAN TOXICITY (Single Exposure): ………….. Not classified. Does not meet classification criteria.
SPECIFIC TARGET ORGAN TOXICITY (Repeated Exposure): …….. STOT RE Category 2. May cause damage to organs through prolonged or
repeated exposure if swallowed. Repeated ingestion can result in damage to the following organs/biological systems: liver, muscles, skeletal.
ASPIRATION HAZARD : …………………………………………………………… Not classified. Does not meet classification criteria.
OTHER HEALTH HAZARD INFORMATON : ………………………………… This product is corrosive to skin and mucous membrane tissues. As a result
of this identified hazard, it is anticipated that excessive inhalation of vapors may also cause irritation to the respiratory tract.
12. ECOLOGICAL INFORMATION
ACUTE AQUATIC TOXICITY :……………………………………………………. No specific test data available for the mixture. Calculated
Estimate: Aquatic Acute Category 3. Harmful to aquatic life. Avoid release to the environment.
CHRONIC AQUATIC TO XICITY: ……………………………………………….. No specific test data available for the mixture. Calculated
Estimate: Aquatic Chronic Category 2. Toxic to aquatic life with long lasting effects. Avoid release to the environment.
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
PRO-SET
HTP-280 Hardener
Page 5 of 6 Last Revised: 03JAN22
Isophoronediamine 2855-13-2 Acute Aquatic Cat. 3; Chronic Aquatic Cat. 3
Methylenebiscyclohexanamine, 4,4 – 1761-71-3 Acute Aquatic Cat. 2; Chronic Aquatic Cat. 2
2-ethyl-4-methylimidazole 931-36-2 Acute Aquatic Cat. 3; Chronic Aquatic Cat. 3
4-Methylimidazole 822-36-6 Not classified
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: …………………………………………………. Methylenebiscyclohexanamine, 4,4 –
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: …………………………………………………. Methylenebiscyclohexanamine, 4,4 –
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: …………………………………………………. Methylenebiscyclohexanamine, 4,4 –
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: …………………………………………………. Methylenebiscyclohexanamine, 4,4 –
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) CAS# 822-36-6 is on NDSL only. All other ingredients are DSL listed.
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.
US EPA TSCA Requirements: ………………………………………………….. No data available.
Canada WHMIS Confidential Business Information (CBI): ………….. No data available.
US EPA SARA TITTLE III Reporting and Notification Requirements:
Subject to Section 302 (TPQ) ……………………………………………… No data available.
Subject to Section 304 (RQ) ……………………………………………….. No data available.
Subject to Section 311 or 312 …………………………………………….. Refer to health and physical classifications in Section 2.
Subject to Section 313 ………………………………………………………. No data available.
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.
PRO-SET
HTP-280 Hardener
Page 6 of 6 Last Revised: 03JAN22
COMPONENT NAME
/CAS NUMBER STATE CODE
4-Methylimidazole
822-36-6
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:……………………………………………………………… Updates to sections 1, 15 and 16.
SDS CONTACT: ……………………………………………………………………… safety@gougeon.com
TITLE: …………………………………………………………………………………… Health, Safety & Environmental Manager
APPROVAL DATE: …………………………………………………………………. January 03, 2022
SUPERSEDES DATE: ……………………………………………………………… January 15, 2019
SDS VERSION: ………………………………………………………………………. HTP-280-2022a
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 Gougeon Brothers,
Inc. The data on this sheet is related only to the specific material designated herein. Gougeon Brothers, Inc. assumes no legal responsibility for use or
reliance upon these data.
3 0
1