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

1. EVA फोम (इथिलीन विनाइल एसीटेट)

सुविधाहरू:

• Fine and uniform cell structure (smooth surface)
• High elasticity and toughness
• Good water resistance and durability
• Can be डाई-कट, गर्मी-गठन, laminated, वा मुद्रित easily
• Density range: 30–300 kg/m³
• मा उपलब्ध छ various colors and hardness levels

Typical Uses:

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

Pros: Smooth finish, स्थायी, अनुकूलन योग्य, गैर-विषाक्त
Cons: Slightly more expensive than EPE

2. EPE फोम (विस्तारित Polyethylene)

सुविधाहरू:

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

Typical Uses:

• प्याकेजिङ (इलेक्ट्रोनिक्स, गिलास, फर्निचर)
• Edge protectors, foam tubes, इन्सुलेशन

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

3. स्पन्ज फोम (Polyurethane or PU Foam)

सुविधाहरू:

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

Typical Uses:

• Seat cushions, sound absorption, cosmetic sponges
• Cleaning products, gaskets, प्याडिङ

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