MDI Prepolymer

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MDI Prepolymers:

Grade nameJY3565JY3575JY3590
NCO content /%6.5±0.27.5±0.29.0±0.2
Appearance in 20℃Polyester system white solid
Mixing temperature/℃(PUP/1,4BD)80/4080/4080/40
Gel time /min1087
Post cure time (110℃) /h484848
Hardness (shore A) 85±190±195±1


Description: MDI Prepolymers are produced by MDI with polyester polyol or PTMEG. They are white solid or semisolid which can be cured by 1,4BDO 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


Package: 20kg per drum

Shelf life: 1 year 

Delivery time: Within 14 days after receiving payment

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