Xuchuan Chemical,Factory Wholesale Price, Double Density Common Safety Shoes, Casting Polyurethane Resins

Production Description Characteristic: Good handle, hydrolysis resistance, high strength and cohesive force, good abrasion resistance and skid resistance Application: Double density sole system for common safety shoes and one-step forming casual shoes, outsole Typical properties of PU matrix Name of product Appearance Viscosity (mPa·s) Density （g·cm-³） Package  （kg） A-6002 Liquid 1000-1400 1.01-1.02 18 B-8280 Yellowish transparent liquid or waxy 600-1000 1.08-1.2 20 Materials preheat A-6002: preheated at 50-60 ℃ for 6-8 hours  B-8280: preheated at 50-60 ℃ for 8-12 hours Typical processing parameters & Reaction parameter Items A/B Materials Temperatures(℃) Mix ratio A+C/B (By weight) Cream time        (s)  End of Rise Time (s)  Parameter  40-45/40-45  sole mid-sole sole mid-sole  40-50  100/72-74 100/78-80 6-8 6-7 Items Free Rise Foam Density (g/cm³) Mold Temperature (℃) Demold Time (min) parameter sole mid-sole 45-55 5-7 0.50-1.0 0.23-0.27 The adding content of C-2 should be 300g±10g/18kg The adding content of water and hardener should be changed according to the reality Sole:                      H2O  0-20g/18kg         Hardener  0-400g/18kg Mid-sole:                H2O 50-60g/18kg        Hardener 0-600g/18kg Physical properties Items Molded Density      (g/cm³) Hardness (Shore A)  Tensile strength          (Mpa)  Elongation        (%)  Physical properties  sole mid-sole  sole mid-sole  sole mid-sole sole mid-sole  0.8-1.1 0.45-0.55 55-70 38-50 7.5-11.0 3.9-7.9 550-750 520-690         Items Tear strength (kN/m) Flexing resistance DIN abrasion (mm³) Peel strength between sole and mid-sole (kN/m) Physical properties sole mid-sole 100000 times no crack sole mid-sole ≥3.5 27-40 18-25 60-100 ---- Demold time may be prolonged with the increse of sole thickness These physical data are acquired by testing a sample of 6mm thick Data listed above are just for reference.The data are subjected to practical production.If other requests for physical properties,please contact us.