polyester tire

Good handle, smooth surface and easy processability. used for tire.

Typical properties of PU matrix

Name of product	Apperance	Viscosity(mPa·/40°C)	Density(g·cm/40°C)	Package(kg)
A-3070	liquid	1000-1400	1.01-1.02	18
B-8280	Yellowish Transparent Liquid or Waxy	800-1200	1.08-1.2	20

Material preheat

A-3070     Preheated at 50-60°C for 6-8 hours

B-8280     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	100/101-103	8-10	60-70	0.24-0.26	45-55	5-7

The adding content of C-2 should be 250g±20/18kg

The adding content of water should be 0-90g/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	0.50-0.70	55-68	7.5-9.0	340-450	24-33

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.

polyester tire