TDI-terminated PPG Prepolymer – Low Viscosity Polyurethane Prepolymer
This TDI-terminated PPG prepolymer features low viscosity, easy processability, and excellent hydrolysis resistance. Designed for efficient production of high-performance polyurethane elastomers with consistent quality and reliable mechanical properties.
Applications
- Polyurethane rods
- Castor wheels
- Polyurethane pads and sheets
- Rubber rollers
- Sieve plates
- Other industrial polyurethane elastomer components
Product Specifications
| Parameter |
Value |
| NCO Content (%) |
5.8 ± 0.2 |
| Density at 24°C (g/cm³) |
1.14 |
| Viscosity at 85°C (mPa*s) |
800 |
| Appearance at 25°C |
Transparent liquid |
Processing Guidelines
Recommended processing parameters when using MOCA as the curing agent:
| Parameter |
Value |
| Mixing Ratio (Prepolymer : MOCA) |
100 : 17.5 |
| Mixing Temperature - Prepolymer / MOCA (°C) |
80 / 120 |
| Gel Time (minutes) |
4 |
| Post-Curing at 120°C (hours) |
10 |
Physical Properties of Cured Elastomer
| Property |
Value |
| Hardness (Shore A) |
96 ± 1 |
| Tensile Strength (MPa) |
31 |
| 100% Modulus (MPa) |
13 |
| 300% Modulus (MPa) |
21 |
| Elongation at Break (%) |
350 |
| Tear Strength - without nick (kN/m) |
110 |
| Rebound Resilience (%) |
30 |
| DIN Abrasion (mm³) |
150 |
Shelf Life
When stored under recommended conditions in its original unopened packaging, the product has a shelf life of 6 months from the date of production.
Packaging
Available in 20 kg or 200 kg steel drums.
Safety Information
Warning: This product contains isocyanates. Proper handling procedures must be followed at all times.
Ventilation: Use only in well-ventilated areas.
Personal Protective Equipment (PPE):
Skin protection: Wear protective gloves and clothing. Repeated or prolonged skin contact may cause allergic reactions. In case of skin contact, wash immediately with soap and water. Remove contaminated clothing and launder before reuse. Seek medical attention if allergic reactions develop.
Eye protection: Eye contact is extremely hazardous. Always wear approved safety glasses or goggles. If eye contact occurs, flush immediately with plenty of water for at least 15 minutes and consult a physician.
Ingestion: If swallowed, do not induce vomiting unless directed by medical personnel. Contact a physician immediately. Never give anything by mouth to an unconscious person.
