EVA foam

✅ Core Features

• Closed cell structure, non absorbent, moisture-proof, water-resistant, good compression rebound, cushioning and shock resistance
• Adjustable hardness: Shore C 20 °~80 °, the smaller the value, the softer it is; Density 33~280kg/m ³
• Temperature resistance: -50 ℃~+80 ℃, not easily hardened or cracked at low temperatures; Acid and alkali resistant, oil and grease resistant
• Easy to process: Slicing, die-cutting, slotting, hot pressing, adhesive backing, composite non-woven fabric/film
• Modified: anti-static EVA, flame-retardant EVA, high elasticity secondary foam EVA optional

📌 Primary foaming vs. secondary foaming

1. One time foaming: low cost, with denser foam cells; Mostly used for ordinary packaging lining, foot pads, and ordinary sealing strips
2. Secondary foaming: lower density, lighter weight, and better rebound; Sports shoe midsole, high-end lining, cushioning pad, higher price

🧩 Commonly used modified categories (commonly used in industrial die-cutting)

• Flame retardant EVA: UL94-V0/V1, insulation buffer gasket for energy storage cabinets and electrical equipment
• Anti static EVA: surface/volume resistance controllable, electronic component packaging lining
• Back adhesive EVA: single-sided/double-sided tape, directly die cut into gaskets, dust-proof and anti-collision strips
• High elasticity EVA: resistant to repeated compression, not easy to collapse for a long time, high buffering requirements for parts

📦 Application scenarios (including energy storage industry)

• Energy storage cabinet/battery: insulation buffer gasket, thermal insulation gasket, sealing strip, module shock absorber
• Electronics: Instruments, power supplies, gift box positioning lining
• Car: Interior soundproofing, sealing strips, cushion blocks
• Daily necessities: yoga mats, floor mats, insoles, protective gear
• Craftsmanship: cosplay props, model carving

⚠️ Comparison and differentiation (quick identification)

• EVA foam: closed cell, smooth skin, strong toughness, non absorbent, good rebound when pressed
• PU sponge: perforated, absorbent, soft to the touch, easy to chip off
• Pearl cotton (EPE): granular, light, average compressive strength, easy to break

💡 Simple selection reference

• Ordinary packaging lining: 40~45 ° Shore C one-time EVA
• Energy storage cabinet shock-absorbing support: 50~60 ° flame-retardant EVA
• High rebound buffering: Secondary foam EVA
• Electronic components: anti-static EVA

  Regarding EVA products, Foshan Zhiwei Adhesive Products Co., Ltd. has over 20 years of professional matching solution experience. We welcome inquiries from major manufacturers. Contact email: yang@fszw-tapes.com .