What is the difference between EVA foam, Epe umpluk, and sponge foam

1. Busa EVA (Etylene vinyl asel)

Fitur:

• Fine and uniform cell structure (smooth surface)
• High elasticity and toughness
• Good water resistance and durability
• Can be die-cut, heat-formed, laminated, or printed easily
• Density range: 30–300 kg/m³
• Kasedhiya ing 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, tahan lama, customizable, Non-beracun
Cons: Slightly more expensive than EPE

2. EPE Busa (Dikembangake poliethelin)

Fitur:

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

Typical Uses:

• Kemasan (Elektronik, glass, Perabot)
• Edge protectors, foam tubes, isolasi

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

3. Busa karang (Polyurethane or PU Foam)

Fitur:

• Struktur sel mbukak (soft and breathable)
• Very compressible and comfortable
• Absorbs water easily
• Density range: 10–60 kg/m³

Typical Uses:

• Seat cushions, Penyerapan swara, cosmetic sponges
• Cleaning products, gaskets, padding

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