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

1. EVA skum (Ethylen vinylacetat)

Funktioner:

• Fine and uniform cell structure (glat overflade)
• High elasticity and toughness
• Good water resistance and durability
• Can be Die-cut, Varmeformet, laminated, eller trykt easily
• Density range: 30–300 kg/m³
• Fås i various colors and hardness levels

Typical Uses:

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

Pros: Smooth finish, holdbar, tilpasses, ikke-giftige
Cons: Slightly more expensive than EPE

2. EPE skum (Ekspanderet polyethylen)

Funktioner:

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

Typical Uses:

• Emballage (Elektronik, glas, møbel)
• Edge protectors, foam tubes, isolering

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

3. Svampeskum (Polyurethane or PU Foam)

Funktioner:

• Åben celle struktur (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, polstring

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