Hver er munurinn á EVA froðu, Epe froðu, og svampfroðu

1. EVA Foam (Etýlen vínýlasetat)

Eiginleikar:

• Fine and uniform cell structure (slétt yfirborð)
• High elasticity and toughness
• Good water resistance and durability
• Can be Die-skorið, hitamyndaður, laminated, eða prentað 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, verkfæri)
• Shoe soles, kneeling pads, leikföng

Pros: Smooth finish, varanlegur, Sérhannaðar, ekki eitrað
Cons: Slightly more expensive than EPE

2. EPE froðu (Stækkað pólýetýlen)

Eiginleikar:

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

Typical Uses:

• Umbúðir (Rafeindatækni, glass, húsgögn)
• Edge protectors, foam tubes, einangrun

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

3. Svampfroða (Polyurethane or PU Foam)

Eiginleikar:

• Open-cell structure (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, Padding

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