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

1. Escuma de Eva (Acetato de vinilo de etileno)

Características:

• Fine and uniform cell structure (superficie lisa)
• High elasticity and toughness
• Good water resistance and durability
• Can be die-cut, heat-formed, laminated, ou impreso easily
• Density range: 30–300 kg/m³
• Dispoñible en various colors and hardness levels

Typical Uses:

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

Pros: Smooth finish, duradeiro, customizable, non tóxico
Cons: Slightly more expensive than EPE

2. Espuma EPE (Polietileno expandido)

Características:

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

Typical Uses:

• Embalaxe (electrónica, glass, furniture)
• Edge protectors, foam tubes, illamento

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

3. Espuma de esponxa (Polyurethane or PU Foam)

Características:

• Estrutura de células abertas (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, acolchado

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