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

1. អ៊ីវ៉ាស្នូ (អេទីឡែនវីនីលអាសេតាត)

លក្ខណៈពិសេស:

• Fine and uniform cell structure (smooth surface)
• High elasticity and toughness
• Good water resistance and durability
• Can be die-cut, heat-formed, laminated, ឬបោះពុម្ព 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, ឧបករណ៍)
• Shoe soles, kneeling pads, toys

Pros: Smooth finish, ចាប់មាម, customizable, មិនពុល
Cons: Slightly more expensive than EPE

2. EPE Foam (ប៉ូលីអេទីឡែនពង្រីក)

លក្ខណៈពិសេស:

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

Typical Uses:

• តមកប់វ (អេឡិចត្រូនិច, glass, furniture)
• Edge protectors, foam tubes, អ៊ីសូឡង់

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

3. អេប៉ុង Foam (Polyurethane or PU Foam)

លក្ខណៈពិសេស:

• 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, ទ្រនាប់

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