PU (Polyurethane) and EPS (Expanded Polystyrene) are two popular materials used for making cooler boxes. While both materials are effective at keeping food and beverages cool, they have different properties and advantages.
PU foam hard cooler are made from polyurethane foam, which has better insulation properties than EPS foam. PU foam has a higher density and better thermal insulation, which means it can keep items cooler for longer periods of time. PU cooler boxes are also more durable and resistant to wear and tear, making them ideal for commercial use and frequent transportation. PU foam is also water-resistant, so it can be used in damp or wet environments without degrading. At the beginning, PU foam is liquid, when heat it, it will expand and fill full cooler box.
EPS foam cooler boxes, on the other hand, are made from expanded polystyrene foam, which is lightweight, rigid, and has low thermal conductivity. EPS foam is an affordable option and provides excellent insulation for keeping items cool. EPS cooler boxes are also environmentally friendly as they can be recycled or reused.
When deciding between a PU cooler box and an EPS cooler box, it's important to consider the intended use and the specific needs of the user. If durability, high thermal insulation, and water resistance are critical factors, then a PU cooler box may be the better choice. If affordability and environmental friendliness are more important, then an EPS cooler box may be the better option.
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