TDI-3140 — hot polyether prepolymer, 89 Shore A
Prepolymer based on polyether with TDI end groups. Low viscosity allows processing at reduced temperatures → better heat resistance and longer service life of the product. Hardness when cured with MOCA — 89 A. A versatile material in the Hot System line.
Component characteristics
| Parameter | Value |
|---|---|
| NCO% | 4.0 ± 0.2 |
| Appearance (room temp.) | white liquid |
| Processing temperature | 85 ℃ |
| Processing viscosity | 1150 cps |
| Specific gravity | 1.26 |
Physical-mechanical properties
| Parameter | Value |
|---|---|
| Hardness, Shore A (25℃) | 89 ± 1 |
| 100% modulus | 5.3 MPa |
| 300% modulus | 10.1 MPa |
| Tensile strength | 50 MPa |
| Elongation at break | 660 % |
| Tear (without notch) | 84 kN/m |
| Tear (with notch) | 40 kN/m |
| Rebound (resilience) | 34 % |
| Abrasion | 39 mm³ |
Mixing and curing (hot casting)
| Parameter | Value |
|---|---|
| Ratio | TDI-3140 100 : MOCA 11.7 |
| Mixing temp. (prepolymer/MOCA) | 85 / 120 ℃ |
| Mold temperature | 100-110 ℃ |
| Pot life | 7 min |
| Gel time | 8 min @ 85℃ |
| Curing | 16 h @ 100-110 ℃ |
Applications
Rods, rollers, gaskets, sheets, industrial rollers, wear-resistant screens for mineral extraction, seals. Industries: mining, quarrying, oil and gas. Color is adjusted by adding pigment.
Packaging · storage
20 kg / 200 kg steel drums · 12-month shelf life · store cool/dry, opened containers under nitrogen.
In the line
Between TDI-2135 (85A) (85A, softer) and TDI-2162 (95A) (95A, harder). Category Hot System.
FAQ
Q: What is the hardness of TDI-3140? A: 89 Shore A (with MOCA curative). Q: Is it for hot or cold casting? A: Hot — prepolymer 85 ℃, MOCA 120 ℃, mold 100-110 ℃. Q: Where is it used? A: Wear-resistant parts for mining, quarrying and oil-and-gas industries — rollers, linings, seals, screens. Q: What makes it special in the line? A: Polyether base + low viscosity → better heat resistance; a versatile medium hardness.
category: Hot System · terms: Reference