Care este diferența dintre spuma EVA, EPE spumă, și spumă de burete

1. Spuma EVA (Acetat de etilen vinil)

Caracteristici:

• Fine and uniform cell structure (suprafață netedă)
• High elasticity and toughness
• Good water resistance and durability
• Can be Died, căldură formată, laminated, sau tipărite easily
• Interval de densitate: 30–300 kg/m³
• Disponibil în various colors and hardness levels

Typical Uses:

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

Pros: Smooth finish, durabil, personalizabil, netoxice
Cons: Slightly more expensive than EPE

2. Spumă EPE (Polietilenă expandată)

Caracteristici:

• Lightweight with larger air bubbles / open cells
• Soft and flexible, excellent absorbție de șoc
• Water and chemical resistant
• Interval de densitate: 15–50 kg/m³

Typical Uses:

• Ambalare (Electronică, sticlă, mobilier)
• Edge protectors, foam tubes, izolatie

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

3. Spuma de burete (Polyurethane or PU Foam)

Caracteristici:

• Structura cu celule deschise (soft and breathable)
• Very compressible and comfortable
• Absorbs water easily
• Interval de densitate: 10–60 kg/m³

Typical Uses:

• Seat cushions, absorbția sunetului, cosmetic sponges
• Cleaning products, gaskets, umplutura

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