Adiprene LFP E740
Adiprene LFP E740
Adiprene® LFP E740 is a 60 Shore D PPDI ether prepolymer having very low free PPDI content (typical < 0.1%) for easier management of health and safety during handling. This prepolymer yields very high performance 59 – 61 Shore D hardness elastomer when cured with Vibracure® A 250.
The high performance features of Adiprene LFP E740 are due to PPDI (p-phenylene diisocyanate), a special building block that imparts exceptional properties to cast polyurethane elastomers. The unique combination of properties exhibited by PPDI-based prepolymers is superior to those available from standard prepolymers based on TDI or MDI.
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See full-listing of Adiprene LFP pPDI Urethane Prepolymers Here.
Features & Benefits
- Low free PPDI content
- Lower viscosity and longer pour life
- Excellent dynamics
- Good tensile/tear strength and elongation
- High resilience
- Hydrolytic resistance
- High hardness
Properties
| Liquid Prepolymer Properties | Value |
|---|---|
| % NCO | 6.80 - 7.60 |
| AE | 553 - 618 |
| Appearance at 25°C | Gray/off-white solid |
| Viscosity, Centipoise (Pa·s), at 86°F (30°C) | Solidifies slowly |
| Viscosity, Centipoise (Pa·s), at 122°F (50°C) | 1600 (1.6) |
| Viscosity, Centipoise (Pa·s), at 149°F (65°C) | 680 (0.68) |
| Viscosity, Centipoise (Pa·s), at 167°F (75°C) | 400 (0.40) |
| Viscosity, Centipoise (Pa·s), at | 120 (0.12) |
| Density (g/ml) at 149°F (65°C) | 1.07 |
| Density (g/ml) at 212°F (100°C) | 1.05 |
