Product Name: Acyloxyvinyl Silane Polymer
Chemical Family: Organosilicon polymer with acyloxy and vinyl groups
Common Use: Industrial adhesive, sealant, resin additive
Manufacturer Information: Detailed company address, phone number, and emergency contact
SDS Number: Unique identifier assigned by manufacturer
Date of Preparation: Entered at time of MSDS creation and updates
Synonyms: Silane-grafted copolymer, acyloxy functionalized vinyl silane polymer
CAS Number: Identifying number, varies by exact formulation
GHS Classification: Eye irritant, skin sensitizer, possible respiratory irritant
Signal Word: Warning
Hazard Statements: Causes moderate eye irritation, prolonged or repeated skin contact can cause dermatitis, inhalation of vapors may irritate mucous membranes
Pictograms: Exclamation mark symbol displayed for irritant properties
Precautionary Statements: Avoid inhalation of vapors, wear gloves and goggles, wash hands after handling, do not eat or drink near material
Routes of Exposure: Eyes, skin, respiratory tract
Symptoms: Redness or burning sensation in eyes, dry or cracked skin, coughing or sore throat
Potential Chronic Effects: Prolonged exposure could aggravate pre-existing respiratory or dermatological conditions
OSHA Regulatory Status: Classified as hazardous according to OSHA Hazard Communication Standard
Chemical Name: Acyloxyvinyl Silane Polymer
CAS #: Reflects polymer backbone and functional group content
Concentration: Main component: 70–98% by weight
Additional Substances: Stabilizers, inhibitors, unreacted silane monomer (traces, less than 1%)
Impurities: Residual solvents (e.g. toluene, xylene, less than 3% total), acetic acid as a hydrolysis byproduct
Component Disclosure: No substances classified as carcinogenic by IARC, NTP, or OSHA included above 0.1%
Hazardous Ingredient List: Acetic acid (CAS 64-19-7) possible byproduct during use
Eye Contact: Immediately flush eyes with running water for at least 15 minutes, holding eyelids apart, seek medical attention if irritation persists
Skin Contact: Remove contaminated clothing, rinse exposed area with soap and water; seek medical evaluation for allergic reactions or persistent irritation
Inhalation: Move individual to fresh air, monitor for respiratory distress, provide oxygen if breathing remains difficult, medical evaluation advised if symptoms develop
Ingestion: Rinse mouth thoroughly, do not induce vomiting, consult physician or poison control
Emergency Symptoms: Persistent burning sensation, difficulty breathing, rash, prolonged coughing, seek immediate care
Note for Healthcare Providers: No specific antidote, provide symptomatic and supportive treatment
Suitable Extinguishing Media: Foam, dry chemical powder, carbon dioxide; avoid direct water jets
Unsuitable Extinguishing Media: High-volume water stream can spread material
Specific Hazards: Combustion releases irritating fumes, including carbon oxides, silicon oxides, acetic acid vapor, possibly formaldehyde
Special Protective Equipment: Self-contained breathing apparatus (SCBA), full protective suit
Firefighting Procedures: Keep containers cool with water spray, use proper ventilation, fight fire from upwind
Explosion Hazard: Not classified as explosive, but accumulation of vapors in poorly ventilated areas can create flash fire risk
Decomposition Products: Carbon monoxide, carbon dioxide, silicon dioxide, organic acids, hydrocarbons
NFPA Ratings: Health 2, Flammability 2, Instability 1
Personal Precautions: Evacuate area, ventilate spill site, avoid breathing vapors or direct contact
Protective Equipment: Nitrile gloves, chemical splash goggles, long-sleeved protective clothing, respiratory mask if ventilation inadequate
Environmental Precautions: Prevent product entry into drains, waterways, or soil
Containment Methods: Absorb free liquid with inert material (e.g., sand, earth, vermiculite), transfer to labeled waste container
Cleanup Methods: Use non-sparking tools, collect residues with absorbent; clean area with detergent and water after removal
Disposal: Handle absorbed material as hazardous waste as per Section 13
Handling Practices: Ensure adequate ventilation, avoid direct skin and eye contact, avoid breathing vapors, use with local exhaust or fume hood
Storage Conditions: Store in a tightly closed original container in a cool, dry, well-ventilated storage area, away from sources of ignition or heat
Segregation: Store away from strong oxidizing agents, acids, amines, water-sensitive materials
Hygiene Measures: Wash hands after usage, remove contaminated clothing and protective gear after handling, do not reuse clothing until thoroughly cleaned
Incompatible Materials: Strong acids, bases, compounds that react with acyloxy or silane groups
Storage Temperature: Recommended range is 5-35°C; avoid freezing and excessive heat
Exposure Limits: No OSHA PEL or ACGIH TLV for the polymer; monitor exposure to hydrolysis byproducts (e.g., acetic acid - OSHA TWA 10 ppm)
Engineering Controls: Local exhaust ventilation, process enclosure, eyewash stations
Personal Protective Equipment (PPE): Chemical-resistant gloves (nitrile, neoprene), splash goggles or face shield, laboratory coat or coveralls
Respiratory Protection: NIOSH-approved organic vapor respirator if exposure exceeds recommended limits
Environmental Controls: Equipment fitted with vapor recovery or containment systems;
Hygiene Methods: Wash hands thoroughly, no eating or smoking near product, remove and decontaminate PPE before reuse
Appearance: Transparent to slightly hazy viscous liquid or clear resin
Odor: Slight, vinegar-like due to acetic acid traces
Odor Threshold: Detectable in the low ppm range for acetic acid
pH: Not applicable (non-aqueous polymer); hydrolysis byproducts can lower pH
Melting/Freezing Point: Below –10°C
Boiling Point: Decomposes above 200°C
Flash Point: 60–90°C (closed cup, dependent on formulation)
Flammability: Moderate (combustible liquid, vapors from solvents)
Vapor Pressure: Negligible at room temperature for polymer, higher for solvents/byproducts
Vapor Density: Heavier than air for liberated vapors
Relative Density: 1.01–1.14 g/cm³
Solubility: Insoluble in water, soluble in common organic solvents
Partition Coefficient (n-octanol/water): Not applicable to polymer
Auto-ignition Temperature: >250°C
Decomposition Temperature: Begins 200–250°C, releases acetic acid and organosilicon vapors
Viscosity: 500–4500 mPa·s at 25°C (depends on grade)
Chemical Stability: Stable under normal conditions, but sensitive to moisture and high heat
Reactivity: Slowly hydrolyzes in presence of moisture, releasing acetic acid or related acids
Hazardous Reactions: Reacts with strong acids, bases, amines producing heat and flammable vapors
Conditions to Avoid: Contact with water or ambient humidity, storage above recommended temperatures
Incompatible Materials: Acidic, basic, or oxidizing substances; organotin or organometallic compounds
Hazardous Decomposition Products: Acetic acid, carbon oxides, silicon dioxides, possible formaldehyde
Polymerization: Not known to self-polymerize under normal storage
Acute Toxicity: Oral, dermal, and inhalation routes studied in animals; polymer itself has low acute toxicity, LD50 (oral rat) >2,000 mg/kg
Skin Corrosion/Irritation: May cause mild to moderate irritation after prolonged contact
Serious Eye Damage/Irritation: Causes eye irritation, can cause pain or temporary vision disturbance
Respiratory Sensitization: Vapors can cause nose and throat irritation and headache
Skin Sensitization: Repeated contact can lead to allergic skin response (eczema-like)
Germ Cell Mutagenicity: No genotoxicity observed in standard in vitro or animal tests
Carcinogenicity: Contains no ingredients listed as carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: No reproductive toxicity found in animal screening
Specific Target Organ Toxicity (STOT): No data on repeated exposure; single exposure may lead to irritation
Ecotoxicity: Low inherent acute aquatic toxicity, but acetic acid byproducts toxic to aquatic insects and invertebrates
Persistence and Degradability: Silane backbone slowly hydrolyzes and degrades under environmental conditions; acetic acid rapidly degrades in water
Bioaccumulation Potential: Not expected for polymer; low for byproducts
Mobility in Soil: Insoluble polymer binds to particulates, minor leaching of acetic acid possible
Other Adverse Effects: Release to watercourses can cause pH shifts (temporary); monitor for aquatic impacts
Regulatory Status: Not designated as marine pollutant or hazardous for water under current UN GHS system
Waste Handling: Collect and contain in sealed, labeled containers for proper waste management
Waste Disposal Methods: Incinerate under controlled conditions with emissions scrubbing; suitable for landfill only as solidified, inert waste
Contaminated Packaging: Rinse empty packaging then handle as hazardous material; do not reuse for food or drinking water
Regulatory Disposal Classification: Handle as hazardous waste under local, state, or federal regulations
Recommended Disposal Code: Refer to national hazardous waste code for silicon-containing organic polymers
Environmental Considerations: Prevent large amounts entering soil, sewage, or surface water system
UN Number: Consult latest listing—product often classed as “Not Regulated” in bulk, may be Class 3 (Flammable Liquid) if solvent content exceeds threshold
UN Proper Shipping Name: Refer to mixture, e.g., “Organosilane Solution” or “Polysiloxane Compound”
Transport Hazard Classes: Flammability class depends on formulation—refer to SDS
Packing Group: III (for combustible formulations)
Marine Pollutant: Not applicable under IMDG
Special Precautions for Transport: Secure sealed containers, avoid direct sun and heat during transit, ensure vehicle ventilation
Label Requirements: GHS pictograms for irritant/flammable (if threshold exceeded)
Additional Information: Review local and international regulations for air, sea, and land transport
OSHA Status: Classified as hazardous according to OSHA Hazard Communication Standard (29 CFR 1910.1200)
TSCA Inventory: Polymeric substance and key ingredients listed or exempt
SARA Title III - Section 313: No ingredients subject to reporting
California Proposition 65: Product not known to contain chemicals listed as carcinogens or reproductive toxins
Canada DSL / NDSL: Product complies with DSL listing
EU REACH: Monomeric silanes registered under REACH, polymer exempt
GHS Classification: GHS irritant, eye irritant, skin sensitizer as per CLP Regulation (EC) No 1272/2008
Other Regional Regulatory Lists: Compliant for use in major industrial markets, consult local requirements for restricted applications
