EVA Foam Storage Guide

The Lifespan Code of EVA Foam
How long can EVA foam be stored? This depends on its 'material' and environmental 'treatment'. This lightweight material is naturally water-resistant and corrosion-resistant, but it will still 'age' over time:

• Under normal conditions: Maintains good elasticity for 3-5 years
• High temperature exposure: May harden and crack in 1-2 years
• Damp basement: Prone to mold growth in about 2 years

The Golden Rules for Extending Lifespan
To keep your EVA foam 'ageless', remember these three preservation secrets:

• Avoid light and hibernate: Ultraviolet rays are the number one killer; storing it in a dark place doubles its lifespan.
• Keep it dry and breathe: Keep humidity below 60% and ventilate once a month to prevent moisture.
• Lying flat: Standing upright will cause long-term deformation; storing it flat maintains its elasticity.

Warning signs of deterioration
When these symptoms appear, your EVA foam should be retired:

• Surface crumbles and powders, like weathered rock
• The rebound speed after pressing is significantly slower
• Net-like cracks or mold spots appear
• A pungent chemical odor is emitted