Polyester Polyol TDI Prepolymers For PU Screen Casting Wheel
Polyester Polyol /TDI Prepolymers for PU screen, casting wheel
Polyester Polyol /TDI Prepolymers are produced by TDI with Polyether polyol,polyester polyol or PTMEG. They are white solid or semisolid or yellow transparent liquid which can be cured by MOCA,E300 or other curing agent.
Characteristic:Environmental,Excellent abrasion resistance, good oil resistance, nice mechanical property, Good rebound. Color can be regulated by adding pigment.
Application:
Rod, sheet, roller, polyurethane screen sheet, sealing ring
Package: 20kg per drum or 200kg per drum
Shelf life: 1 year
Delivery time:Within 14 days after receiving payment
| Type | JY3221 | JY3130 | JY3140 | JY3143 | JY3150 | JY3170 |
| NCO content % | 2.1±0.1 | 3.0±0.1 | 4.0±0.2 | 4.3±0.2 | 5.0±0.2 | 7.0±0.2 |
| Appearance at 20℃ | White solid | |||||
|
MOCA/g (100g prepolymer) |
6 | 8.6 | 11.7 | 12.5 | 14.5 | 20.0 |
| Gel time/min | 9 | 12 | 8 | 8 | 6 | 4.5 |
| Hardness(Shore A) | 72±2 | 80±2 | 90±1 | 92±1 | 94±1 |
62D |
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