Is EVA waterproof?
What is EVA for shoes? EVA rubber and plastic products are a new type of environmentally friendly plastic packaging material. It has the advantages of good cushioning, shock resistance, heat insulation, moisture resistance, resistance to chemical corrosion, etc., and it is non-toxic and non-absorbent. EVA rubber and plastic products are designed to be processed and shaped, and their shock resistance is better than traditional packaging materials such as polystyrene (foam), and it meets environmental protection requirements. It is the best choice for export products. Compared with shock-proof packaging, it can be cut and formed; due to the large difference in density, it can also have a wider range of uses.
Features of EVA:
Water resistance: airtight cell structure, no water absorption, moisture resistance, and good water resistance.
Corrosion resistance: resistant to chemical corrosion such as seawater, grease, acid, alkali, antibacterial, non-toxic, odorless, and pollution-free.
Processability: No joints, and easy to process such as hot pressing, cutting, gluing, and bonding.
Anti-vibration: high resilience and tension resistance, high toughness, and good shock/cushioning performance.
Thermal insulation: excellent thermal insulation, cold-preservation and low-temperature performance, and can withstand severe cold and exposure.
Sound insulation: airtight cell, good sound insulation effect.
Application range:
Household appliances, hardware tools, toys, handicrafts, tourism products, cultural goods, cosmetics;
Skates: lining materials for sports shoes, sports insoles, luggage back pads, surfboards, kneeling pads; sports protective gear, car interiors, shoe material bonding; base materials for high-end foam tape products; ice storage, cold-proof buildings , Light mats, sun visor materials; shock-proof buffer packaging for electrical appliances, precision instruments, instruments and other electronic products in a wide range of fields.
The density of EVA wax is between 0.91～0.93 (g/cm3).
The density of EVA is mainly restricted by the VA content. As the VA content in the copolymer increases from 5% to 40%, the density increases from 0.929 g/cm3 to 0.974 g/cm3. When it is less than 5%, the density is the smallest.
eva is polyvinyl acetate
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