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

1. EVA-skum (Eten vinylacetat)

Drag:

• Fine and uniform cell structure (slät yta)
• High elasticity and toughness
• Good water resistance and durability
• Can be gängbar, värmeformad, laminated, eller tryckt easily
• Density range: 30–300 kg/m³
• Finns i various colors and hardness levels

Typical Uses:

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

Pros: Smooth finish, hållbar, anpassningsbar, giftfri
Cons: Slightly more expensive than EPE

2. EPE-skum (Expanderad polyeten)

Drag:

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

Typical Uses:

• Förpackning (elektronik, glas, möbler)
• Edge protectors, foam tubes, isolering

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

3. Svampskum (Polyurethane or PU Foam)

Drag:

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

Typical Uses:

• Seat cushions, ljudabsorption, cosmetic sponges
• Cleaning products, gaskets, stoppning

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