The impact of sandpaper grit size on formaldehyde emission from particleboards.

Sanding is an important stage of wood-based panel production, where the primary goal is to achieve a desired thickness as well as appropriate smoothness of the surface. With sanding, the emission of formaldehyde can be influenced especially by the selection of sanding paper grit size. The aim of this paper is to present how the grit size of selected sanding paper affects formaldehyde emission of three-layer particleboard. For this purpose we selected 16 mm thick particleboard for furniture use. Sanding paper with grit sizes of 40, 80 and 120 was used for particleboard sanding. Formaldehyde emission was determined by the gas analysis method (SIST EN 717-2). The findings indicate that formaldehyde emission decreases with increasing grit size of sandpaper used in the process.

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