What is the difference between EVA foam, EPE फोम, and sponge foam

1. EVA फोम (इथिलीन विनाइल एसीटेट)

वैशिष्ट्ये:

• Fine and uniform cell structure (smooth surface)
• High elasticity and toughness
• Good water resistance and durability
• Can be डाय-कट, उष्णता-निर्मित, laminated, किंवा मुद्रित easily
• Density range: 30–300 kg/m³
• Available in various colors and hardness levels

Typical Uses:

• Sports mats, yoga blocks, swimming belts
• Packaging inserts (high-end electronics, साधने)
• Shoe soles, kneeling pads, खेळणी

Pros: Smooth finish, टिकाऊ, सानुकूल करण्यायोग्य, गैर-विषारी
Cons: Slightly more expensive than EPE

2. EPE फोम (विस्तारित पॉलिथिलीन)

वैशिष्ट्ये:

• Lightweight with larger air bubbles / open cells
• Soft and flexible, excellent शॉक शोषण
• Water and chemical resistant
• Density range: 15–50 kg/m³

Typical Uses:

• पॅकेजिंग (इलेक्ट्रॉनिक्स, काच, फर्निचर)
• Edge protectors, foam tubes, इन्सुलेशन

Pros: Low cost, good cushioning, reusable
Cons: Rougher surface, less firm than EVA, not suitable for precision cutting

3. स्पंज फोम (Polyurethane or PU Foam)

वैशिष्ट्ये:

• ओपन-सेल रचना (soft and breathable)
• Very compressible and comfortable
• Absorbs water easily
• Density range: 10–60 kg/m³

Typical Uses:

• Seat cushions, आवाज शोषण, cosmetic sponges
• Cleaning products, gaskets, पॅडिंग

Pros: Very soft, आरामदायक, low cost
Cons: Absorbs water, poor durability outdoors, not suitable for heavy loads