Which is better hot press or cold press plywood laminate?
In the production process of plywood, hot pressing and cold pressing are two main processes, each with its own advantages and disadvantages.
Hot pressed plywood has significant advantages. In terms of production efficiency, the hot pressing process can complete adhesive curing in a relatively short period of time, achieve continuous production, significantly shorten the production cycle, and increase output. In terms of product quality, high temperature and high pressure evenly distribute the adhesive, resulting in high bonding strength, flat surface, uniform density, sturdy structure, excellent moisture resistance, and low deformation and aging, with a long service life.
Cold pressed plywood also has unique advantages. Its finished product has low internal stress, minimal deformation, and less wood compression loss. Meanwhile, the cold pressing curing time is long, the color difference of the board surface is small, and the cutting process is relatively simple.
Hot pressed plywood also has shortcomings, such as relatively high density, difficulty in breaking and cutting, high cost of consumables, short heating and curing time, and significant color difference. Cold pressed plywood, on the other hand, is prone to uneven edge density due to the expansion of the mold during heating, resulting in problems such as edge collapse and uneven density. This increases the risk of cracking, wire jumping, and deformation of the surface after painting.
If pursuing production efficiency and product quality, hot pressed plywood is better; If strict requirements are placed on cost and board deformation, cold pressed plywood is worth considering.
