Wooden door painting is a science, and like all other scientific fields, it has endless exploration. It is constantly improving and developing.
Wood-based panels as substrates, such as medium-density fiberboard, plywood, blockboard, etc., require a smooth and uniform substrate, uniform thickness, no warpage, corner defects, delamination, bubbling and other defects. The color of the substrate should be the same when the finish is applied, and the color defects of the board should be controlled. Solid wood as a substrate, such as solid wood panel, solid wood finger joints, etc., the surface treatment is based on the normal processing of the special processing. Generally, it includes processes such as greasy flatness, sanding, surface cleaning, and removal of wood wool. For the specific wood species and the surface condition after machining, it is sometimes necessary to remove the resin, bleach and partially or completely perform the substrate color correction. The surface of the substrate should be carefully sanded to make it smooth and smooth without any defects.
When the veneer is used for the finishing process, since the veneer is very thin (usually 0.2 to 0.3 mm), the defects of the substrate are easily reflected on the painted surface through the veneer, so the substrate must be strictly selected. For the substrate with knots, cracks and resin capsules, it must be repaired, and all kinds of substrates should be strictly sanded in front of the thin wood.
In modern wood finishing, the understanding of the surface quality of the substrate has changed from the past “three-point woodworking seven-point oiler†to “three-point paint seven-point woodâ€. It can be seen that the modern coating industry has fully recognized the quality of the substrate surface. The important influence on the final coating effect has changed the traditional misconception that paint coatings (paints) are used to cover up and compensate for the poor substrate. [ Follow the WeChat public account "Jiuzhengmen Window Network"; pay attention to courtesy, scan code to send millions of business opportunities! Jiuzhengmen window network exchange group ]
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