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

November 13, 2025

KatunduEVA FoamEPE FoamSiponji Foam (PU)
DothiOsalala & fineRougherOfewa, porous
Density range (kg/m³)30–30015–5010–60
Water absorptionNoneVery lowHigh
ElasticityHighWapakatiVery high (ofewa)
KukhalitsaExcellentGoodFair
Common usesZamasewera, kuyika, toysCushioning, kuchingiraFurniture, kuyeletsa
difference between EVA foam, EPE foam and sponge foam

1. EVA Foam (Ethylene vinyl acetate)

Mawonekedwe:

  • Fine and uniform cell structure (smooth surface)
  • High elasticity and toughness
  • Good water resistance and durability
  • Can be die-cut, heat-formed, laminated, or printed easily
  • Density range: 30–300 kg/m³
  • Kupezeka various colors and hardness levels

Typical Uses:

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

Pros: Smooth finish, cholimba, customizable, zopanda poizoni
Cons: Slightly more expensive than EPE


2. EPE Foam (Expanded Polyethylene)

Mawonekedwe:

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

Typical Uses:

  • Cakusita (zamagetsi, glass, mipando)
  • Edge protectors, foam tubes, kukutira

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


3. Siponji Foam (Polyurethane or PU Foam)

Mawonekedwe:

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

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