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

1. EVA vaht (Etüleenvinüülatsetaat)

Funktsioonid:

• Fine and uniform cell structure (sile pind)
• High elasticity and toughness
• Good water resistance and durability
• Can be lõikega, kuuma moodustatud, laminated, või trükitud easily
• Density range: 30–300 kg/m³
• Saadaval various colors and hardness levels

Typical Uses:

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

Pros: Smooth finish, vastupidav, kohandatav, mittetoksiline
Cons: Slightly more expensive than EPE

2. EPE vaht (Paisutatud polüetüleen)

Funktsioonid:

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

Typical Uses:

• Pakendamine (elektroonika, klaas, mööbel)
• Edge protectors, foam tubes, isolatsioon

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

3. Käsna vaht (Polyurethane or PU Foam)

Funktsioonid:

• Avatud raku struktuur (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, polsterdus

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