Soft polyester for shoe sole

Specifications Good handle, smooth surface, low density and low hardness, good dimension stability, especially used for Mid-sole.

Typical properties of PU matrix

Name of product	Apperance	Viscosity(mPa·/40°C)	Density(g·cm/40°C)	Package(kg)
A-2025	liquid	800-1200	1.01-1.02	18
B-8020	Yellowish Transparent Liquid or Waxy	700-900	1.08-1.2	20

  Material preheat A-2025     Preheated at 50-60°C for 8-10 hours B-8020     Preheated at 60-70°C for 8-12 hours   Typical processing parameters & Reaction parameter

Items	A/B Materials Temperature(°C)	A+C/B Mix ratio (by weight)	Cream Time(s)	End of rise time(s)	Free rise foam density(g/cm³)	Mold temperature(°C)	Demold time(min)
Parameter	40-45/38-42	100/72-74	7-11	45-55	0.14-0.21	45-55	4-5

  The adding content of C-2 should be 240g±20/18kg The adding content of water should be 0-120g/18kg according to the reality The adding content of hardener should be changed according to the reality   Physical properties

Items	Molded Density(g/cm³)	Hardness(shore A)	Tensile strength(Mpa)	Elongation(%)	Tear Strength(kN/m)
Physical properties	0.28-0.40	20-35	1.4-3.2	300-400	9-15

  Demold time may be prolonged with the increase of sole thickness. These physical date are acquired by testing a sample of 6mm thick. Data listed above are just for reference, The detail date are subjected to practical production, If other request for Physical properties, please contact us.