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Anhui Sinograce Chemical Co., Ltd.

Polyurethane Elastomer, Wear Resistant Polyurethane Prepolymer, Pouring Sealant manufacturer / supplier in China, offering Special Properties Polyurethane Prepolymer High Resilience and Wear Resistant, (SA-235) Water Based Primer for Pet Films, (SA-233) Water Based Pressure Adhesive for Films and so on.

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Supplier Homepage Product Polyurethane Elastomer Special properties polyurethane prepolymer series Special Properties Polyurethane Prepolymer High Resilience and Wear Resistant

Special Properties Polyurethane Prepolymer High Resilience and Wear Resistant

FOB Price: US $1.1-99.9 / kg
Min. Order: 1 kg
Min. Order FOB Price
1 kg US $1.1-99.9/ kg
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Production Capacity: 1000tons/Month
Transport Package: According to The Customer Demand
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram, D/A

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Basic Info
  • Model NO.: HR-711 & HR-712 & HR-713
  • Molecular Principal Chain: Heterochain Polymer
  • Trademark: sinograce
  • HS Code: 3921199000
  • Synthetic Resin: Unsaturated Polyester Resin
  • Color: White
  • Origin: China Anhui
Product Description
Description
Special properties of polyurethane prepolymer with high resilience and wear resistance

Key features
The material has high resilience under high hardness.

Typical properties 
High resilienceHR-711HR-712HR-713
PrepolymerAppearance (25ºC)Waxy solidWaxy solidWaxy solid
NCO Content(%)4.5~5.07.5~8.58.5~9.5
Using Mixture Ratio (PHR)13.0~14.57.6~8.68.6~9.7
Life in the Reaction Kettle  (75~78ºC/min)8~105~76~8
 
 
 
Physical properties of finished products
Hardness (Shore D)90±595±590±5
Tensile strength (MPa)48.257.257.7
Tearing Strength (kN/m)112.0135.7143.5
Elongation at Break (%)380498514
Rebound Rate (%)555858


Application
-It is mainly used in the production of polyurethane products with high hardness and good elasticity.

Usage method
Can be used for manual, but also suitable for the operation of pouring machine, chain extender is MOCA or other chain extender.

Attention
The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used.
After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.
The storage period of unopened prepolymer is three months.
If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.
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