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

1. EVA vaahto (Eteenivinyyliasetaatti)

ominaisuudet:

• Fine and uniform cell structure (sileä pinta)
• High elasticity and toughness
• Good water resistance and durability
• Can be katkaiseva, lämmönmuodostunut, laminated, tai painettu 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, lelut

Pros: Smooth finish, kestävä, muokattavissa oleva, myrkytön
Cons: Slightly more expensive than EPE

2. EPE vaahto (Paisutettu polyeteeni)

ominaisuudet:

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

Typical Uses:

• Pakkaus (elektroniikka, lasi, huonekalut)
• Edge protectors, foam tubes, eristys

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

3. Sienivaahto (Polyurethane or PU Foam)

ominaisuudet:

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

Typical Uses:

• Seat cushions, äänen imeytyminen, cosmetic sponges
• Cleaning products, gaskets, pehmuste

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