Expanded Polyethylene (EPE) foam is a lightweight, semi-rigid, flexible closed-cell foam most commonly used in packaging, for impact and shock absorption, vibration dampening, and surface protection. It is also used in some applications as a cushioning material in furniture.
Here is a detailed description of EPE as a material:
Composition: EPE is made from low-density polyethylene (LDPE) resins which are expanded into a foam with the application of heat, using blowing agents. The process creates uniform cells that are well-interconnected, providing an effective cushioning effect.
Properties:
- Lightweight: EPE foam is very light, which makes it suitable for reducing overall product weight when used in packaging or furniture manufacturing.
- Impact Absorption: Due to its dense cellular structure, it can absorb and distribute shock energy, which is helpful in protecting delicate items during transit.
- Flexibility: Even though it's semi-rigid, EPE is flexible enough to wrap around items or to be used in products that may require some degree of bending.
- Insulation: It has good thermal resistance properties, making it useful as an insulator in various applications.
- Water Resistant: EPE is non-hygroscopic, meaning it doesn't absorb water, which prevents mold and mildew. This makes it suitable for use in damp environments.
