TDI Polyester Polyurethane Preploymer Hardness 60A is a two-component polyurethane elastomer material, component A is a yellow transparent liquid, component B is a colorless transparent liquid.
Performance characteristics
TDI Polyester Polyurethane Preploymer Hardness 60A have many performance,
1. Mixing ratio and temperature:
- The mixing ratio of A:B is 100:100 by weight, to ensure a balanced ratio.
- The recommended mixing temperature range is 35°C to 50°C, which helps to ensure the best mixing uniformity and curing effect.
2. Viscosity:
- At 50°C, the viscosity of component A is 400 mPa·s and the viscosity of component B is 800 mPa·s, indicating that the material has good fluidity and is easy to process.
3. Gel time and curing time:
- The gel time is 30 minutes and the curing time (100°C/h) is 12 hours, which is suitable for rapid processing and use in industrial production.
4. Hardness and mechanical properties:
- The hardness is 60±2 Shore A, with moderate flexibility and strength.
- The tensile strength is 7 MPa, showing strong tensile resistance.
- 100% modulus stress is 2 MPa, 300% modulus stress is 3 MPa, indicating the excellent performance of the material under different tensile conditions.
- The elongation at break is 500%, indicating that the material has extremely high ductility and is suitable for use in high-strain environments.
5. Tear strength and resilience:
- The right-angle tear strength is 12 kN/m, showing good tear resistance.
- The resilience is 50%, which is suitable for application scenarios that require certain resilience performance.
6. Density:
- At 25°C, the density is 1.11 g/cm³, which is suitable for manufacturing lightweight and strong products.
properties of the shore A 60A Polyurethane Prepolymer
| Model | 60A/B | |
| State of matter at 20°C | A | yellow transparent liquid |
| B | colorless transparent liquid | |
| The mixing ratio(A:B) | 100:100 | |
| mixing temperature(℃) | 35-50 | |
| Viscosity at 50°C(mpa·s) | A | 400 |
| B | 800 | |
| Gel time (min) | 30 | |
| Post curing time (100℃/h) | 12 | |
| Hardness (Shore A) | 60±2 | |
| Tensile strength (mpa) | 7 | |
| 100% modulus stress (mpa) | 2 | |
| 300% modulus stress (mpa) | 3 | |
| Elongation at break (%) | 500 | |
| Right Angle Tear Strength (kN/m) | 12 | |
| Rebound (%) | 50 | |
| Density at 25°C (g/cm3) | 1.11 | |
Applications
TDI Polyester Polyurethane Preploymer Hardness 60A is suitable for a variety of industrial fields, and the main application scenarios include:
- Seals and gaskets: Due to its excellent tensile strength and tear resistance, it is suitable for sealing materials that require high mechanical properties.
- Industrial rollers: High resilience and moderate hardness make it an ideal material for conveyor belt rollers and printing press rollers.
- Protection and cushioning pads: The high elongation at break and resilience of the material make it widely used in protective equipment, shock-absorbing pads, etc.
- Mold manufacturing: The high strength and wear resistance of polyurethane elastomers are suitable for the production of industrial molds, especially in situations where a certain degree of flexibility and toughness is required.
physical properties
TDI Polyester Polyurethane Preploymer Hardness 60A has Excellent physical properties and processing characteristics
1. Good fluidity: Components A and B have moderate viscosities (400 mPa·s and 800 mPa·s, respectively) at 50°C, making them easy to handle during mixing and pouring, with good fluidity and suitable for filling complex molds.
2. Fast gel time and curing speed: The 30-minute gel time and 12-hour curing time mean that the material can complete initial molding in a shorter time and reach its final performance within 12 hours, which is suitable for industrial applications with compact production processes.
3. High tensile strength: The tensile strength is 7 MPa, indicating that the material can maintain good structural integrity when stretched, which is suitable for applications that need to withstand mechanical stress.
4. High elongation at break: The 500% elongation at break shows that the material can be greatly extended without breaking when stretched, which is particularly suitable for applications with high strain or strong deformation requirements.
5. High tear strength: 12 kN/m right-angle tear strength means that the material has strong resistance to damage when facing tearing or cutting by sharp objects.
6. Moderate resilience: 50% resilience ensures that the material can quickly return to its original shape after being subjected to pressure or deformation, and is suitable for applications that require repeated pressure and recovery (such as shock absorbers, elastic pads, etc.).
TDI Polyester Polyurethane Preploymer Hardness 60A, we also have 60-90A hardness polyurethane prepolymer.
Package and stock
200KG/DRUM.
1. The prepolymer should be stored in a low-temperature and dry place, and avoid moisture and water vapor during use.
2. The prepolymer after opening should be used up as soon as possible. If it is not used up, it is best to seal it with nitrogen.
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