Product Name: Alkoxyl Silane Polymer
Recommended Use: Industrial and commercial sealants, adhesives, moisture-curing systems
Manufacturer: [Company Name, Address, Emergency Contact Number]
Synonyms: Silyl Terminated Polyether, Alkoxysilane Endcapped Polymer
CAS Number: 68951-19-9
UN Number: Not regulated under UN classification
Contact for Information: Safety Officer, phone: XXXXXX, email: XXXXXX
GHS Classification: Not considered hazardous according to OSHA Hazard Communication Standard, 29 CFR 1910.1200
Signal Word: None required
Hazard Statements: May cause mild skin and eye irritation. Long-term inhalation of vapors or mists may cause respiratory discomfort.
Precautionary Statements: Avoid inhalation of vapor and direct contact with skin or eyes.
Appearance and Odor: Viscous, colorless to pale yellow liquid, slight alcohol-like odor
Pictogram(s): Not required
Main Component: Alkoxyl Silane Polymer (CAS: 68951-19-9), content: 90 – 100%
Functional Silane Additives: 1 – 5%, may include gamma-aminopropyltriethoxysilane, methyltrimethoxysilane (Trade Secret)
Fillers/Adjuvants: Calcium carbonate, treated silica (CAS: 1317-65-3, 7631-86-9), 0 – 8%
Solvents: None above reportable levels
Impurities: Trace levels of methanol or ethanol generated by hydrolysis
Inhalation: Move individual to fresh air, monitor breathing, seek medical assistance if symptoms persist.
Skin Contact: Wash skin thoroughly with soap and water, remove contaminated clothing; irritation continues, consult physician.
Eye Contact: Rinse with plenty of water for several minutes, hold eyelids open. If irritation develops, seek medical advice.
Ingestion: Do not induce vomiting. Rinse mouth with water. Medical attention recommended if material taken in large quantity.
Delayed Effects: Minimal risk unless exposed to large quantities or chronically
Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, water spray
Specific Hazards: On burning, product releases carbon oxides, silicon oxides, possible trace amounts of formaldehyde and methanol
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear.
Firefighting Procedures: Cool exposed containers with water. Avoid inhaling combustion by-products. Prevent runoff from reaching water sources.
Flammability / Explosion Data: Product is not classified as flammable but combustible in high heat
Personal Precautions: Wear gloves, goggles, and suitable work clothing. Ventilate affected area if indoors. Avoid inhalation of vapors.
Environmental Precautions: Prevent entry to sewers or watercourses. Inform environmental authorities in case of large spills.
Clean-up Methods: Contain spill with inert absorbent (sand, vermiculite). Scoop residue into marked container for proper disposal. Clean surface with detergent and water.
Disposal: Collect waste for disposal according to local, state, and federal regulations.
Safe Handling: Handle with care to avoid spills. Use with adequate ventilation. Do not eat, drink, or smoke during handling. Keep container closed when not in use.
Storage: Store in a cool, dry, well-ventilated area away from sources of ignition or moisture. Keep containers sealed and upright. Protect from sunlight and freezing temperatures.
Incompatible Materials: Acids, strong oxidizers, moisture, water
Special Precautions: Container residue can still present hazard. Clean thoroughly or dispose after use.
Exposure Limits: No specific occupational exposure limits set for polymer. Methanol (generated upon hydrolysis, TLV 200 ppm, ACGIH)
Engineering Controls: Use local exhaust or general ventilation.
Personal Protective Equipment: Chemical-resistant gloves (nitrile or butyl), safety goggles, protective clothing
Respiratory Protection: Not required under normal use. Where vapors are generated (eg, heated applications), use NIOSH-approved respirator.
Hygiene Measures: Wash hands after handling, remove contaminated clothing.
Appearance: Viscous, colorless to pale yellow liquid or paste
Odor: Mild, alcohol-like
Odor Threshold: Not determined
pH: Not applicable
Melting/Freezing Point: Not determined (liquid at ambient)
Boiling Point: Above 200°C (decomposes)
Flash Point: Above 100°C (closed cup method)
Evaporation Rate: Negligible
Flammability: Not classified as flammable
Vapor Pressure: Low at 20°C
Relative Density: 1.0 – 1.4 (water=1)
Water Solubility: Insoluble, reacts slowly to form silanols and alcohols
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not determined
Decomposition Temperature: Above 200°C
Viscosity: 3,000 – 100,000 mPa·s (at 25°C)
Chemical Stability: Stable under normal conditions. Hydrolyzes slowly in presence of moisture.
Conditions to Avoid: Avoid excess heat, humidity, water, and strong oxidizing agents.
Incompatible Materials: Acids, bases, moisture. Contact with water produces alcohols.
Hazardous Decomposition Products: Methanol, ethanol, carbon oxides, silicon oxides, formaldehyde (trace)
Polymerization Risk: Not known to occur under recommended conditions
Acute Toxicity: LD50 (oral, rat): Above 5,000 mg/kg (estimated)
Skin Corrosion/Irritation: Slight to mild irritation, repeated or prolonged exposure may worsen effects.
Eye Damage/Irritation: May cause temporary redness or discomfort
Sensitization: Not classified as a skin sensitizer
Mutagenicity: No known mutagenic effects
Carcinogenicity: Not classified as a carcinogen by IARC, NTP, OSHA
Reproduction Toxicity: No known effects
Chronic Effects: Long-term exposure to byproducts (ethanol, methanol) can pose health risks if not controlled.
Other Information: Direct sunlight, high temperature can degrade product and increase risks.
Ecotoxicity: Low toxicity to aquatic organisms based on main component structure
Persistence and Degradability: Decomposes slowly by hydrolysis, forms silanols, alcohols. Silanols bind to sediment, degrade over time.
Bioaccumulation Potential: Low, due to poor water solubility and rapid breakdown in environment
Mobility in Soil: Minimal mobility; decomposition products can seep if released in large quantities
Other Adverse Effects: Large spills can harm aquatic habitats by physical effects, not toxicity
Waste Treatment Methods: Dispose of product and contaminated materials through licensed chemical waste contractor.
Incineration: Recommended if local regulations allow. Avoid landfill disposal due to persistent residues.
Recycling: Not generally feasible due to product formulation.
Environmental Precautions: Do not allow undiluted product or major residues to reach water courses.
Container Disposal: Empty containers retain residue. Rinse with solvent or dispose as hazardous waste.
UN Number: Not regulated
Proper Shipping Name: Not classified as dangerous goods under ADR, IMDG, IATA, DOT
Transport Hazard Class: None
Packing Group: None
Environmental Hazards: No
Special Precautions for User: Keep containers sealed and upright. Secure during transport to prevent leakage.
Bulk Transport: No relevant restrictions
TSCA: All ingredients are listed or exempted.
REACH: Compliant with relevant registration requirements.
SARA 313: No reportable ingredients.
California Proposition 65: Methanol released during curing is listed, but trace levels only.
WHMIS: Non-controlled product
Additional Regulations: Product follows local, state, and federal chemical safety rules.
