Material Safety Data Sheet: Thermoplastic Acrylic Resin

Identification

Product Name: Thermoplastic Acrylic Resin
Chemical Family: Acrylic Polymer Resin
Common Synonyms: Polymethyl Methacrylate Resin, Acrylic Copolymer
Recommended Use: Industrial coatings, adhesives, inks, plastics
Supplier: Manufacturer’s name, address, and contact number
Emergency Contact: 24-hour service phone number, local or national poison control center
UN Number: 1133 (if shipped as solution with flammable solvent)

Hazard Identification

GHS Classification: Flammable solids (Category 2), Eye irritation (Category 2A), Skin sensitization possible
Label Elements: Flammable pictogram, exclamation mark
Hazard Statements: May catch fire easily under heat or flame, causes eye irritation, may cause allergenic skin reaction
Precautionary Statements: Keep away from sparks and open flames, avoid dust generation, prevent skin and eye contact, wash skin thoroughly after handling
NFPA Ratings: Health – 1, Flammability – 2, Reactivity – 0

Composition / Information on Ingredients

Main Ingredients: Polymethyl methacrylate resin (CAS: 9011-14-7), Methylmethacrylate monomer (residual, CAS: 80-62-6), Butyl acrylate (trace, CAS: 141-32-2)
Concentration Range: 95–100% polymer, 0–5% unreacted monomer, less than 0.5% additives and stabilizers
Impurities: Small percentage of residual solvents or polymerization inhibitors, depending on manufacturing process

First Aid Measures

Inhalation: Remove person to fresh air; seek medical attention if symptoms like dizziness or shortness of breath appear.
Skin Contact: Remove contaminated clothing, wash area with copious water and mild soap; for persistent irritation, get medical evaluation.
Eye Contact: Rinse eyes for 15 minutes, lifting eyelids occasionally; get medical assistance if discomfort remains.
Ingestion: Rinse mouth with water, avoid inducing vomiting, seek medical advice, especially for large ingestions or symptoms like nausea or cramps.
Notes for Physicians: Symptomatic treatment, monitor for allergic reaction or chemical irritation.

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical powder, foam, carbon dioxide, water spray
Hazards During Fire: Fumes contain carbon monoxide, carbon dioxide, smoke, possibly acrylic monomers; dust clouds in air may explode.
Special Protective Equipment: Wear self-contained breathing apparatus and full protective gear
Further Recommendations: Move containers from area if safe, cool exposed surfaces with water, avoid breathing combustion gases

Accidental Release Measures

Personal Precautions: Keep away from ignition sources, ventilate area, avoid dust, wear chemical-resistant gloves and goggles
Environmental Precautions: Keep spilled material out of drains, waterways, soil
Method for Cleanup: Vacuum or sweep to avoid dust, gather into chemical waste containers, wash spill area with water to remove residue, dispose according to local regulations

Handling and Storage

Handling: Avoid dust generation, store and use in ventilated places, ground equipment, keep away from ignitable materials and strong oxidizers, avoid skin and eye contact, do not eat or drink in handling areas
Storage: Store in cool, dry, well-ventilated space, keep containers tightly closed, segregate from incompatible materials, keep out of direct sunlight, control temperature to avoid softening or degradation, label containers clearly

Exposure Controls and Personal Protection

Exposure Limits: Methyl methacrylate (OSHA/ACGIH TLV: 100 ppm TWA), acrylic polymer (no specific limit)
Engineering Controls: Local exhaust or general ventilation in processing and mixing zones
Personal Protection: Safety glasses or face shield, impervious gloves (nitrile recommended), long-sleeve garments, approved respiratory protection if dust levels high
Hygiene Requirements: Wash hands after use, avoid taking contaminated clothing outside work area, keep PPE clean and tested

Physical and Chemical Properties

Appearance: White or colorless granular powder, sometimes clear brittle beads
Odor: Weak acrylic odor (if residual monomer present)
Molecular Weight: Variable, typically 100,000–500,000 g/mol
Boiling Point: Not applicable
Melting Point: 160–200°C, softening point depends on grade
Flash Point: Above 200°C (closed cup, varies by formulation)
Solubility: Insoluble in water, soluble in certain organic solvents like acetone, toluene
Vapor Pressure: Not relevant for solid form
Density: 1.15–1.20 g/cm³
Stability: Stable under standard conditions, avoid strong acids, alkalis, oxidizers
Decomposition Temp: Begins at approximately 220°C with monomer release

Stability and Reactivity

Reactivity: Not highly reactive in solid state; susceptible to decomposition under high heat or flames
Chemical Stability: Product resists spontaneous degradation under recommended storage and handling
Possibility of Hazardous Reactions: May depolymerize or release monomer vapors if overheated
Incompatible Materials: Strong acids, alkalis, oxidizing agents, halogenated compounds
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, acrid smoke, possible acrylic monomer vapors at temperatures above 220°C

Toxicological Information

Routes of Exposure: Inhalation of dust, skin or eye contact, ingestion
Acute Effects: Low toxicity, dust may irritate eyes, skin, respiratory tract; monomer is a skin sensitizer in rare cases
Chronic Effects: Repeated overexposure may aggravate eczema or asthma
Carcinogenicity: Acrylic resins not classified as carcinogenic to humans; monomer classified as Group 2B (possibly carcinogenic) by IARC only in high, chronic exposures
Sensitization: Minor risk, mostly from additives or residual monomer
Other Data: No reproductive, genetic, or developmental toxicity observed for main polymer

Ecological Information

Ecotoxicity: Main resin shows low toxicity to fish and aquatic invertebrates; monomer component may cause short-term harm to aquatic life in spills
Persistence: Resistant to biodegradation, breaks down slowly in environment, especially in soil
Bioaccumulation: Not likely due to molecular size and insolubility
Mobility in Soil: Minimal movement, tendency to remain at point of deposition
Other Effects: Resin particles may contribute to microplastic burden in aquatic systems

Disposal Considerations

Waste Handling: Put leftover solid in industrial landfill or licensed incineration; avoid dumping in sewers or waterways
Disposal Procedures: Gather spills, contaminated PPE into approved containers; process as non-hazardous plastic in most cases, with care for monomer-rich waste streams
Packaging Disposal: Recycle or incinerate empty containers; clean them if possible before disposal

Transport Information

UN Number: 1133 (if shipped as solution; not regulated as solid)
Proper Shipping Name: Not classed as dangerous for solid resin; solution in solvent may be hazardous
Transport Hazard Class: None for solid; Class 3 for flammable liquid solution
Packing Group: None required for solid product
Marine Pollutant: Not classed as marine pollutant in solid form
Transport Precautions: Use rigid, sealed packaging, keep dry, avoid dusty conditions during shipment

Regulatory Information

Inventory Status: Main resin and monomer ingredients listed in TSCA (US), EINECS (EU), DSL (Canada), and most global inventories
Labeling Requirements: OSHA and GHS standard applies to residual monomer and fire risk; product labeling must include irritation and flammability hazard
SARA Title III: Some component monomers or additives may be listed for reporting threshold requirements
California Prop 65: No listing for main resin; check for monomer residuals
Other Regulations: Work safety standards for dust, plastic particles apply under national occupational codes; classified as industrial chemical, not hazardous consumer product under most jurisdictions