I. Formulation and Instructions This formulation utilizes EVA+SSBR as the base material, reducing SSBR raw material costs by 20%-30% compared to traditional high-rebound SEBS systems. Through its strong cross-linking design, it achieves a balance of "soft elasticity + wear resistance and collapse resistance," making it ideal for midsoles and insoles in outdoor sports shoes and work shoes. The specific formulation and functions are as follows: high elasticity, wear resistance, and deformation resistance Reference Formula of Foam Shoe Material Raw material components mass fraction act on EVA 70 VA content 28% SSBR 30 Improving the Elasticity and Wear Resistance AC 4.5 core foaming agent ZnO 2 foaming accelerator octadecanoic acid 1.5 blowing promotor DCP 0.8 Realize the cross-linking of EVA and SSBR Light calcium carbonate 15 800 mesh filler carbon-white 5 increase tear strength 1010+168 0.5 antioxygen lubricant EBS 0.8 lubricant II. Performance Features (Designed for Outdoor and Safety Shoes) core advantage Shaos hardness A 30-35, long-term pressure without collapse, wear-resistant and durable, high elastic recovery rate, comfortable walking rebound; Cost comparison Compared to the "EVA+SEBS" system, the raw material cost is reduced by approximately 25%, achieving a balance between performance and cost-effectiveness. III. Performance Adjustment Plan Increase softness (target Shore A 25-30): Adjust the EVA/VA content to 33% and increase the SSBR dosage to 35 phr. Increase the amount of foaming agent AC to 5.0phr and reduce the light calcium carbonate to 10 phr. Enhanced wear resistance and deformation resistance (designed for high-strength outdoor applications): Increase silica to 8phr and adjust DCP dosage to 1.0 phr. The foaming ratio is controlled at 2.5-3 times to reduce voids and enhance structural strength. IV. Application Scenarios midsoles for outdoor sports shoes and insoles for work shoes (frequent walking or weight-bearing scenarios); Midsole for children's functional shoes (requires wear-resistant + high-rebound foot protection).