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2026-03-10

What is the difference between dry press and wet press?



(Left: dry pressing; Right: wet pressing)
 

Dry pressing involves adsorbing and molding the slurry, then directly drying it in an oven before shaping. The resulting product has a high moisture content, a rougher surface texture, and looser fibers, with a thickness typically exceeding 1.5mm. Due to its high production efficiency and low mold costs, it is often used in fields where appearance is not critical but cushioning performance is emphasized.
 

Wet pressing, also known as premium paper-plastic molding, involves directly drying and shaping the semi-finished product in a hot press mold at high temperatures. This process highly compacts the fibers, resulting in a dense, thin-walled, and smooth-surfaced finished product. Although it is more expensive and energy-intensive, it offers excellent dimensional accuracy and rigidity.

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