Why Does Cell Structure Matter?
A foam's cell structure directly determines its water permeability, sound insulation, thermal insulation and mechanical properties.
Closed Cell EVA Foam
Each cell is independent and sealed. This structure means water, air and moisture transmission is near zero. All Atami EVA products have closed-cell structure.
- Waterproof
- Antibacterial
- High impact absorption
- Chemical resistant
- Long-lasting
Open Cell Foam
Cells are interconnected, allowing water and air to pass freely. Advantageous for sound insulation but not suitable for wet environments or outdoor use.
Which for Industrial Applications?
For industrial applications like automotive, footwear, sports and packaging, closed-cell EVA foam should be preferred. Waterproofing and durability are the core requirements of these sectors.