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

1. EVA ෆෝම් (එතිලීන් වයිනයිල් ඇසිටේට්)

විශේෂාංග:

• Fine and uniform cell structure (සුමට මතුපිට)
• High elasticity and toughness
• Good water resistance and durability
• Can be ඩයි-කප්පාදුව, තාපය සෑදී ඇත, laminated, හෝ මුද්රණය කර ඇත 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, tools)
• Shoe soles, kneeling pads, toys

Pros: Smooth finish, කල් පවතින, අභිරුචිකරණය කළ හැකි, විෂ සහිත නොවන
Cons: Slightly more expensive than EPE

2. EPE ෆෝම් (Expanded Polyethylene)

විශේෂාංග:

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

Typical Uses:

• ඇසුරුම් කිරීම (ඉලෙක්ට්රොනික උපකරණ, glass, ගෘහ භාණ්ඩ)
• Edge protectors, foam tubes, පරිවරණය

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

3. ස්පොන්ජ් ෆෝම් (Polyurethane or PU Foam)

විශේෂාංග:

• Open-cell structure (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, පෑඩිං

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