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| Categories | TDI Based Polyurethane |
|---|---|
| Model Number: | E3490 |
| Appearance: | White solid |
| MOQ: | 1mt |
| Delivery Time: | 5-8 work days |
| Hardness: | Shore A 88-92 |
| Brand Name: | EXCEEDCHEM |
| Application: | PU rods, castor wheels, PU pad, PU sheet, rubber roller, sieve plate, etc |
| Packaging Details: | 20kg/drum; 200kg/drum |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 3000mt/month |
| Certification: | ISO9001:2008 |
| NCO Content: | 4.0-4.4% |
| Price: | To be negotiated |
| DIN Abrasion: | 39 mm3 |
| Place of Origin: | China |
| Shelf life: | 6 months |
| Company Info. |
| Qingdao Exceed Fine Chemicals Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
Our E3490 TDI PTMG prepolymer is a core casting raw material paired with MOCA for producing durable mining PU screen panels, hydrocyclone liners and other wear parts.
This is TDI-terminated PTMG prepolymer of low viscosity, it allows to be processed at reduced temperaturefor the better heat stability. It enjoys a high performance.
It applies to make PU rods, castor wheels, PU pad, PU sheet, rubber roller, sieve plate, etc.
| NCO Content (%) | 4.2±0.2 |
| Density at 24℃ (g/cm3) | 1.09 |
| Viscosity at 85℃ (Mpa.s) | 750 |
| Appearance at 25℃ | White solid |
| Ratio (Prepolymer/Moca) | 100/12.1 |
| Mix temperature/℃ (Prepolymer/Moca) | 85/120 |
| Gel time/min | 10 |
| Postcure (120℃)/h | 10 |
| Hardness/ shore A | 90±2 |
| Tensile Strength/ Mpa | 33 |
| 100% Modulus/MPa | 7.5 |
| 300% Modulus/MPa | 14.1 |
| Elongation at break/% | 500 |
| Tear strength(without nick) / kN/m | 78 |
| Rebound/% | 54 |
| DIN Abrasion/mm3 | 39 |
The storage time of original packing is 6 months at the above condition from the date of production.
20kg or 200kg per steel drum
Q1: What is E3490 prepolymer?
A: E3490 is low-viscosity TDI-terminated PTMG prepolymer, the main A-component paired with MOCA to cast heavy-duty mining polyurethane wear parts.
Q2: Key mechanical advantages for mining use?
A: Shore A90 hardness, 33MPa tensile strength, 78kN/m tear strength, ultra-low DIN abrasion (39mm³), long service life against mineral slurry erosion.
Q3: Compatible with our CPU casting machines?
A: Fully fits 5~15kg/min & 10~30kg/min two-component casting machines for small & oversized mining PU parts.
Q4: Can we add color pigment?
A: Yes, color paste can be added via the machine’s color feeding unit without weakening wear resistance.
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