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Brand Name: HEADSPRING
Appearance: White or pale yellow, liquid, no foreign material
Purity: PURE
Grade Standard: Industrial Grade
CAS No.: 9009-54-5
Model Number: 6689/5002
Application: POLYURETHANE PREPOLYMER FOR SHOE SOLE
Place of Origin: China (Mainland)
EINECS No.: 618-449-1

Specifications

Shop sign:ZG-P-6689/ZG-I-5002
 
1.Characteristics:High hardness,high density,smooth surface,good resilience PU resin for tire.
2.Application:Applicable for the production of tire.
3. Typical properties of PU Resin
  
Name of products
  
Appearance
  
Viscosity
(Pas/50C)
  
Density
(g/cm3/40C)
 
Package
(kg)
ZG-P-6689 White or pale yellow, liquid, no foreign material 0.60-1.20 1.16-1.20 18
ZG-I-5002
Transparent liquid, no foreign material
0.30-0.50 1.18-1.20 20
Reference shipments ratio: A/B=30/25(barrel)
4. Catalysts and auxiliary agents:
ZG-P-6689/ZG-AC-2/water =18kg/280g/80g
Note: corresponding adjustment should be made to the addition of auxiliary agent at different areas, different environment and different production conditions.
5. (Molding conditions & physical properties):

Reactivity

Technical index

Test item

Reference physical properties

Reference ratio
P+C/I  
100/120
Molded density of sole
(g/cm3)
0.35-0.85

Using temperature(C)

A material: 45-50; B material:38-42

Hardness (type A)
70-90

Cream time(s)
5-9
Tensile strength(MPa)
6.0-8.0

Rise time(s)
30-45
Elongation(%)
350-450

Metal mold temperature
(C)
45-55
DIN abrasion resistance(mm3)
<=500

Demould time
(min)
2.5-4
Free foam density
(g/cm3)
0.25-0.40



Folding endurance (room temperature)
(40,000 gap length mm)
<8

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