| Katundu | EVA Foam | EPE Foam | Siponji Foam (PU) |
|---|
| Dothi | Osalala & fine | Rougher | Ofewa, porous |
| Density range (kg/m³) | 30–300 | 15–50 | 10–60 |
| Water absorption | None | Very low | High |
| Elasticity | High | Wapakati | Very high (ofewa) |
| Kukhalitsa | Excellent | Good | Fair |
| Common uses | Zamasewera, kuyika, toys | Cushioning, kuchingira | Furniture, kuyeletsa |
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