WANNATE 3T6240

WANNATE 3T6240 is a modified TDI system optimized for flow and reaction control.
WANNATE 3T6240 improves foam uniformity and surface quality during processing.
WANNATE 3T6240 enhances reproducibility and stability in polyurethane production.

CAS Number: 108338-51-8

Synonyms: WANNATE 3T6240, Modified TDI formulation, Flow-optimized isocyanate, Controlled-reactivity TDI system, Polyurethane isocyanate blend, Wanhua TDI derivative, Flexible foam isocyanate, Industrial PU isocyanate, Reactive TDI mixture, Processing-stable isocyanate system

WANNATE 3T6240 is a raw material that stands out with its low viscosity, pot life of up to 12 minutes, and good flexibility properties.
WANNATE 3T6240 is a performance-modified TDI-based isocyanate, tailored for applications requiring enhanced flow behavior and finer control over reaction kinetics.

WANNATE 3T6240 is designed to support smoother processing, especially in systems where uniform expansion and surface finish are critical.
The formulation helps minimize processing variability and improves reproducibility in large-scale production.

WANNATE 3T6240 is a PTMEG -based, TDI terminated urethane prepolymer that is solid at room temperature.
When cured with MOCA or DMTDA, this high performance material yields a 90±2 A durometer elastomer.

WANNATE 3T6240 elastomers are characterized by:
Excellent flex life
Excellent abrasion resistance
Good resistant to water
Excellent resilience 

Uses of WANNATE 3T6240:
WANNATE 3T6240 is widely used in flexible polyurethane foam manufacturing, particularly where improved surface quality and consistent cell distribution are required.
WANNATE 3T6240 is suitable for high-resilience foams used in furniture, bedding, and automotive interiors.
WANNATE 3T6240 can also be applied in specialty polyurethane systems such as coatings and molded elastomers where controlled curing is beneficial.

Stability and Reactivity of WANNATE 3T6240:

Chemical stability:
Stable under dry, controlled conditions.

Reactivity:
Reacts with water.
Reacts with polyols.
Reacts with amines.

Conditions to avoid:
Moisture.
Excessive heat.
Contamination.

Incompatible materials:
Water.
Alcohols.
Strong bases.

Hazardous decomposition products:
Carbon dioxide (CO₂) may form under fire conditions.
Nitrogen oxides (NOₓ) may form under fire conditions.
Toxic isocyanate vapors may be generated.

Handling and Storage of WANNATE 3T6240:

Handling:
Avoid vapor exposure.
Use appropriate personal protective equipment (PPE).

Storage:
Store in sealed containers in a dry environment.

Storage conditions:
Protect from moisture.
Protect from temperature fluctuations.

First Aid Measures of WANNATE 3T6240:

Inhalation:
Move to fresh air immediately.

Skin contact:
Wash thoroughly with soap and water.

Eye contact:
Rinse cautiously with water for at least 15 minutes.

Ingestion:
Seek immediate medical attention.

Firefighting Measures of WANNATE 3T6240:

Extinguishing media:
Foam.
Carbon dioxide (CO₂).
Dry chemical.

Hazards:
Toxic fumes may evolve during combustion.

Protection:
Use full protective equipment.
Use self-contained breathing apparatus.

Accidental Release Measures of WANNATE 3T6240:

Personal precautions:
Ensure ventilation.
Wear personal protective equipment (PPE).

Environmental precautions:
Prevent contact with water.
Prevent release into drains.

Cleanup:
Absorb with inert material.
Neutralize properly.

Exposure Controls / Personal Protection of WANNATE 3T6240:

Respiratory protection:
Use organic vapor respirator if required.

Hand protection:
Chemical-resistant gloves (nitrile or butyl).

Eye protection:
Safety goggles.

Skin protection:
Protective clothing.

Identifiers of WANNATE 3T6240:
Product name: Cast Polyurethane Raw Material
Trade Name: 90 ShA TDI Ether PTMEG - WANNATE 3T6240
CAS Number: 108338-51-8
Chemical Type: Modified TDI system
EC Number: Not assigned

Properties of WANNATE 3T6240:
Appearance: Light yellow to pale amber liquid
Odor: Characteristic isocyanate odor
Density: ~1.21–1.25 g/cm³
Viscosity: Low to medium
Flow behavior: Improved flowability compared to standard TDI
Reactivity: Moderately fast with controlled profile

Hardness/Shore A: 90±2
100% Modulus/MPa: 12.6
300% Modulus/MPa: 27.0
Tensile Strength/MPa: 38.2
Elongation at Break/%: 480
Tear Strength, Die C pli/( KN/m): 92
Rebound(23°C)/%: 52

Recommended Meltdown Procedure（20Kg drum): 60 °C，10-12 hrs -
Mix Ratio by Weight: 100
Temperature，°C: 70-80
Mold Temperature，°C: 100-110
Pot Life (400 g scale), Mins: 8-12
Demold Time, Mins: 90
Postcure, Hrs./°C: 16/100

Specifications of WANNATE 3T6240:
NCO, %: 4.0-4.4
Appearance @ 25°C: Solid free from contamination
Brookfield Viscosity@80°C，mPa·s: 800-1200