Product Name: Epoxy Hardener
Recommended Use: Used as a curing agent in epoxy resin systems for adhesives, coatings, construction, electronics, and automotive applications
Manufacturer/Supplier: Company’s name, address, and phone number must be listed for emergency or information
Emergency Contact: Chemtrec +1-800-424-9300 or local emergency response number
Product Codes: Varies based on the supplier; users should verify with the SDS provided by their vendor
Synonyms: Amine hardener, Triethylenetetramine mix, Polyetheramine
Recommended Restrictions: Industrial and professional use only; not for household use
GHS Classification: Skin corrosion/irritation (Category 1), Serious eye damage/eye irritation (Category 1), Acute toxicity-oral and dermal (Category 4), Skin sensitization (Category 1), Acute aquatic toxicity (Category 2)
Label Elements: Hazard pictograms for Corrosive, Exclamation Mark, Environment
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage. May cause an allergic skin reaction. Harmful if swallowed or in contact with skin. Toxic to aquatic life.
Precautionary Statements: Wear protective gloves, clothing, eye and face protection. Avoid breathing vapors and ensure good ventilation. Wash hands thoroughly after handling. Prevent environmental release.
Main Components: Polyamine adducts (30-60%), Aliphatic amines (10-30%), Benzyl alcohol (10-40%), Modified cycloaliphatic amines (1-10%)
CAS Numbers: Polyamine adducts (N/A: proprietary blend), Benzyl alcohol (100-51-6), Triethylenetetramine (112-24-3), Cycloaliphatic amines (varies)
Other Additives: May contain proprietary functional additives or amine accelerators (less than 5%)
Impurities: Minor amounts of secondary amines, water, and unreacted monomers may be present
Concentration Range: Concentrations can vary widely depending on the specific formulation by manufacturer
Inhalation: Move affected person to fresh air. Keep comfortable for breathing. Seek medical attention if symptoms persist such as coughing, wheezing, or shortness of breath.
Skin Contact: Immediately remove contaminated clothing and rinse skin with plenty of running water for at least 15 minutes. Use mild soap if available. Seek medical attention for persistent irritation or burns.
Eye Contact: Rinse cautiously with water for several minutes, holding eyelids open. Remove contact lenses if present and continue rinsing. Obtain medical attention immediately due to risk of permanent eye injury.
Ingestion: Rinse mouth with water without inducing vomiting. Never give anything by mouth to an unconscious person. Call a poison center or physician for further advice.
Delayed Symptoms: Keep under observation for delayed reactions, especially respiratory distress, blistering, or allergic responses.
Suitable Extinguishing Media: Use foam, dry chemical, or carbon dioxide to extinguish fire. Do not use direct water streams as product may react with water and cause splattering.
Specific Hazards: Burning can produce toxic gases including ammonia, nitrogen oxides, and carbon monoxide.
Protective Equipment: Firefighters should wear full turnout gear and self-contained breathing apparatus.
Fire-Fighting Instructions: Remove containers from fire area if it is safe. Cool sealed containers exposed to fire with water spray to prevent rupture.
Explosion Data: Avoid extinguishing release water entering sewers or waterways; runoff can be hazardous to the environment.
Personal Precautions: Avoid skin and eye contact. Ventilate area. Wear appropriate personal protective equipment such as gloves, goggles, and chemical-resistant clothing.
Environmental Precautions: Prevent product from entering drains, watercourses, or soil. Notify authorities if significant amounts enter waterways.
Spill Containment: Stop source of leak if safe to do so. Build dike with non-combustible absorbent such as sand or earth to prevent spread.
Clean-up Methods: Absorb with inert material and place in a chemical waste container for disposal. Clean area thoroughly to remove residual product.
Additional Information: Dispose of contaminated absorbent and cleaning materials as hazardous waste.
Handling Precautions: Avoid breathing vapors and contact with eyes, skin, and clothing. Use in well-ventilated areas. Do not eat, drink, or smoke while handling.
Storage Conditions: Keep container tightly closed in a cool, dry, well-ventilated area. Store away from acids, oxidizers, and food. Protect from direct sunlight and moisture.
Storage Stability: Product remains stable when stored according to manufacturer recommendations; avoid prolonged storage above 30°C.
Incompatible Materials: Strong acids, peroxides, organic anhydrides, and isocyanates. May react with other chemicals commonly found in industrial settings.
Special Rules: Always label partial containers. Do not return unused materials to original container to avoid contamination.
Engineering Controls: Provide local exhaust or general ventilation to prevent accumulation of vapors. Use closed systems to minimize exposure.
Exposure Limits: No specific OSHA PEL or ACGIH TLV for most epoxy hardeners; benzyl alcohol and some amines may have recommended limits.
Personal Protection: Wear chemical-resistant gloves (nitrile, neoprene), goggles or face shield, and impervious clothing. Use respiratory protection such as organic vapor cartridge mask in areas with inadequate ventilation.
Hygiene Measures: Wash thoroughly after handling. Remove contaminated clothing before entering eating areas.
Environmental Measures: Install spill and eye wash stations in all areas where epoxy hardeners are stored or handled.
Physical State: Liquid, typically amber or yellowish, viscous
Odor: Amine-like, pungent
pH: Strongly alkaline
Boiling Point/Range: 200°C – 280°C depending on composition
Melting Point: Below -20°C (varies with mixture)
Flash Point: 112°C (Benzyl alcohol); can vary by formula
Solubility: Partial to full solubility in water, soluble in alcohols and ketones
Vapor Pressure: Low at room temperature
Density: About 1.0 – 1.1 g/cm³ depending on formulation
Viscosity: 500 – 10000 mPa.s at 25°C (can be much higher for certain blends)
Explosion Limits: Not classified as flammable but vapors may form hazardous mixtures with air
Partition Coefficient (n-octanol/water): Typically low-to-moderate, varies with blend
Chemical Stability: Product is stable under normal storage and handling conditions
Decomposition: Heat or fire produces hazardous gases such as ammonia, nitrogen oxides, and other organic vapors
Reactivity: Exothermic reactions occur with epoxy resins, acids, isocyanates, and oxidizers
Incompatible Materials: Avoid aluminum, copper alloys, and galvanised metals during storage or dispensing
Polymerization: Hazardous polymerization unlikely without the presence of epoxy resin or high heat
Corrosive Properties: Product can corrode metals and degrade rubber, leather, and some plastics
Acute Toxicity: Oral and dermal routes present moderate toxicity; ingestion can cause gastrointestinal distress, nausea, or vomiting, while skin contact results in burns or blistering
Chronic Effects: Repeated exposure may cause skin sensitization, eczematous rashes, or respiratory issues
Carcinogenicity: No major component identified as a confirmed carcinogen by NTP, IARC, or OSHA
Mutagenicity: Not classified as mutagenic in standard assays
Other Effects: Prolonged or repeated exposure can aggravate pre-existing allergies, asthma, or dermatitis
Target Organs: Skin, eyes, respiratory tract, and in severe cases, liver or kidney
Symptoms of Exposure: Irritation, redness, swelling, difficulty breathing, or delayed allergic reactions
Environmental Fate: Components may persist in the environment due to slow biodegradation
Aquatic Toxicity: Harmful to fish and aquatic invertebrates; benzyl alcohol and aliphatic amines display acute aquatic toxicity
Bioaccumulation: Certain amines have low bioaccumulation potential, but still require care as persistent environmental toxins
Mobility in Soil: Product may slowly leach in soil depending on rainfall, risking groundwater contamination
Degradability: Polyamines degrade slowly under natural environmental conditions
Other Effects: May produce noxious breakdown byproducts in aqueous ecosystems, affecting microbial life
Waste Disposal: Treat as hazardous chemical waste. Send to approved incinerator or chemical disposal facility.
Container Disposal: Do not reuse empty containers. Rinse thoroughly and send for reconditioning or recycling.
Hazardous Waste Code: Check local regulations; in the US, may fall under RCRA codes D002 (corrosive) or others depending on contamination
Special Instructions: Never release waste into drains, surface water, or on the ground
Regulatory Requirements: Disposal procedures must comply with regional, national, and local environmental regulations
UN Number: UN 2735
Proper Shipping Name: Amines, liquid, corrosive, n.o.s. (contains polyamine, benzyl alcohol)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: II or III depending on formulation
Label: Corrosive
Marine Pollutant: Product may qualify as marine pollutant
Special Precautions: Ensure containers are tightly sealed; avoid stacking or handling in a way that risks breakage during transport
Regulatory Guidance: Land, sea, and air transport regulations (DOT, IMDG, IATA) may impose additional requirements based on national differences in classification
US Regulations: TSCA Inventory-listed components. SARA Title III Sections 302, 313 may apply for certain amines.
European Union: REACH-registered components. Subject to CLP hazard communication rules; Safety Data Sheet (SDS) mandatory for professional users.
Labeling: Complies with OSHA Hazard Communication, GHS, and EU CLP labeling regulations.
Other Listings: Listed in Canada DSL/NDSL, Australia AICS, Japan ENCS, and other national Inventories as appropriate
Restrictions: Some regions restrict use of certain polyamines or benzyl alcohol above specified concentrations in consumer products.
Workplace Safety: Subject to occupational exposure standards and recommended control measures based on region
Product Registration: May require notification or authorization for specific end uses in some countries or industries
