Identification Methods For Plywood

Plywood is a common building material, but there are many counterfeit and inferior products on the market. The following are the identification methods for plywood:
1. Observation of appearance: A normal plywood surface should be flat, smooth, without obvious burrs, cracks, or unevenness. If there are such defects, it indicates that the quality of this plywood is not good.
2. Check the thickness: The thickness of plywood is consistent, and if there is a difference in thickness, it is not a good plywood.
3. Smell: Normal plywood should not have a pungent odor. If there is an odor, it may be made with toxic glue.
4. Cross section observation: By observing the cross section of the plywood, the uniformity of the adhesive can be observed. Good plywood glue should be uniform, with no obvious bubbles or voids visible on the cross-section.
5. Inspection marks: plywood produced by legitimate manufacturers should have quality marks and manufacturer marks, which can be used to determine the authenticity and quality of plywood.
In short, when purchasing plywood, it is necessary to choose a legitimate sales channel and manufacturer, carefully observe the appearance, inspect thickness, odor, and cross-section to ensure that the purchased product is genuine and reliable.