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WANNATE 3W3688 delivers exceptional fatigue resistance, ensuring industrial components maintain their structural integrity under high-frequency mechanical stress.
WANNATE 3W3688's specialized molecular structure provides a stable "pot life" that allows for precise casting of complex geometries without compromising rapid demolding efficiency.
Additionally, WANNATE 3W3688 is engineered for low heat build-up, making it a critical choice for high-speed rollers and dynamic load-bearing wheels.
Synonyms: WANNATE 3W3688, Polymeric MDI formulation, Rigid foam isocyanate, High-functionality MDI system, Polyurethane structural isocyanate, Wanhua MDI derivative, Industrial PU raw material, Crosslinking isocyanate blend, Rigid insulation isocyanate, Polyurethane reactive component
WANNATE 3W3688 is a premium polyether-based TDI prepolymer engineered for the production of high-performance polyurethane elastomers.
Utilizing a PTMEG backbone, WANNATE 3W3688 provides exceptional hydrolysis resistance and retains its mechanical properties even in low-temperature environments.
WANNATE 3W3688 is characterized by its high resilience and toughness, making it suitable for parts subjected to intense physical stress and wear.
WANNATE 3W3688 is formulated to ensure consistent reactivity and stable viscosity, allowing for high-quality casting in complex industrial molds.
WANNATE 3W3688 is an MDI ester prepolymer that provides a hardness of 88 ShA with 1.4 BDO and 97 ShA with HQEE.
WANNATE 3W3688 stands out as a raw material with its low viscosity, pot life of up to 8 minutes, and good flexibility properties.
Uses of WANNATE 3W3688:
Mining & Heavy Industry:
Production of vibratory screens, conveyor scrapers, and high-wear liners for mineral processing.
Industrial Wheels:
Heavy-duty load wheels, AGV tires, and high-speed roller coaster wheels where heat build-up must be minimized.
Oil & Gas:
Manufacturing of pipeline pigs, valve seals, and subsea components that require long-term stability in water.
Technical Rollers:
Rollers for the printing, textile, and paper industries that demand high dimensional stability and chemical resistance.
Stability and Reactivity of WANNATE 3W3688:
Stability:
Stable under dry, controlled storage conditions.
Avoid:
Temperatures >50°C.
Any contact with moisture.
Incompatibility:
Reacts with water.
Alcohols.
Amines.
Strong acids/bases.
Hazard:
Reaction with water generates CO₂.
Which can cause dangerous pressure in sealed containers.
Handling and Storage of WANNATE 3W3688:
Storage:
Store in a cool, dry area under a nitrogen blanket.
Temperature:
Maintain between 20°C–35°C.
If crystallized, melt gently and roll the drum to homogenize.
Handling:
Use local exhaust ventilation.
Use non-sparking tools.
First Aid Measures of WANNATE 3W3688:
Inhalation:
Move to fresh air.
Seek immediate medical help for potential respiratory distress.
Skin:
Wash immediately with soap and water.
Or a polyglycol-based cleanser.
Eyes:
Flush with water for 15+ minutes.
Consult an eye specialist.
Ingestion:
Do not induce vomiting.
Seek medical aid immediately.
Firefighting Measures of WANNATE 3W3688:
Extinguishers:
CO₂.
Dry chemical.
Alcohol-resistant foam.
Hazards:
Fire may release toxic gases (NOₓ.
HCN.
TDI).
Action:
Firefighters must use SCBA.
Cool containers with water spray.
Accidental Release Measures of WANNATE 3W3688:
Containment:
Evacuate area.
Absorb spill with sand.
Earth.
Vermiculite.
Decontamination:
Treat with a solution of:
90% water.
8% ammonia.
2% detergent.
Disposal:
Leave in open containers for 48 hours.
To allow gas to escape before sealing.
Exposure Controls / Personal Protective of WANNATE 3W3688:
Respiratory:
Use organic vapor or supplied-air masks if ventilation is insufficient.
Eyes/Hands:
Wear Nitrile/Butyl gloves.
Full-face shield.
Body:
Wear chemical-resistant coveralls (tulum).
To prevent any skin contact.
Identifiers of WANNATE 3W3688:
Chemical Type: Polymeric MDI system
CAS Number: Mixture
EC Number: Not assigned
Properties of WANNATE 3W3688:
Appearance: Brown liquid
Odor: Mild aromatic odor
Density: ~1.23–1.31 g/cm³
Viscosity: Medium
Reactivity: High with polyols and water
Functionality: Elevated
