First, plywood, blockboard, medium density fiberboard, particleboard and other man-made boards for interior decoration. Because formaldehyde has a strong adhesion, it also has the functions of strengthening the hardness of the board, preventing insects and preventing corrosion, so the adhesive used in the production of wood-based panels at present is urea-formaldehyde resin with formaldehyde as the main component;
The second is wood-based panel furniture. The results of a comparative test conducted by a consumer association in a city show that among 60 sets of medium density furniture samples, 29 sets of formaldehyde exceed the standard, and the over-standard rate is as high as 48.23%;
Third, other kinds of decorative materials containing formaldehyde, such as white latex, foamed plastics, paints and coatings. Experts specially reminded that latex adhesives are widely used in wall treatment in wood engineering and decoration, especially the formaldehyde in latex sealed on the wall is difficult to remove;