Coating process: coating and scraping

Core tip: scratch Scraping is a method of using scraper to finish viscous coating Used to be used for oil varnish coating, nitrocellulose varnish, etc In modern furniture and home decoration, scraping and coating are mostly used for scraping and coating putty or filler （1） Scraping tool 1 The tool for scraping is generally called a scraper The scraper is made of horn, steel sheet, hard rubber, rubber plate, etc Steel blade scraper is used for general putty, rubber scraper is used for special-shaped parts or edges, and wide steel blade scraper is used for large-area flat surface Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: scraping is a method of using scraper to paint viscous paint Used to be used for oil varnish coating, nitrocellulose varnish, etc In modern furniture and home decoration, scraping and coating are mostly used for scraping and coating putty or filler （1） Scraping tool 1 Scraping tool is generally called scraper The scraper is made of horn, steel sheet, hard rubber, rubber plate, etc Generally, steel blade scraper is used for putty, rubber scraper is used for special-shaped parts or edges, wide steel blade scraper is used for large-area flat surface, and horn scraper is used for thickening coating Nowadays, the use of ox horn scraper is rare The width of the scraper varies from 3cm to 30cm according to the painting requirements The blade is generally required to be thin and elastic Except for rubber blade, the blade shall be flat but not too sharp, and there shall be no gap on the blade 2 Scraper treatment: the newly purchased or newly manufactured scraper often has sharp edges and corners, which is easy to damage the wood surface or hurt hands Generally, 240 × sandpaper is used for chamfering treatment first This kind of scraper not only does not scratch the wood surface, but also is easy to use Liaoning paint factory (2) the specific operation method of scraping 1 There are many ways to hold the scraper You can choose according to your own habits Here we introduce a way: press the middle part of one side of the scraper with the right thumb, and press the other side of the scraper with the other four fingers The scraper is at a 45 ° angle with the board surface, and one side of the thumb is facing in For the rubber scraper, the scraper is laid on the four fingers of the right hand, except the thumb The thumb presses a corner or one side, and changes the hand force of the palm according to the change of the shape of the material, which is generally completed by the extrusion between the fingers 2 Scraping method ① apply the filler flat on the edge of the plane to form a line, Shenyang texture coating, Shenyang exterior wall coating use a scraper to press it into the pipe hole or depression of the painted wood surface in an orderly manner along the 45 degree angle of the wood grain direction When the scraper scrapes to the edge of the plate surface, the tip of the blade immediately turns to 35 ° - 45 ° to scrape back The scraper shall be carried out from far to near and from top to bottom There shall be at least 1 / 3 overlap of the scraper width between the scraper and the scraper After scraping and coating, the scraper shall be at an angle of 45 ° - 60 ° with the object surface to remove the surplus residue on the object surface ② The operation of the special-shaped edge of the special-shaped part is to spread the filler to one side of the scraper and use the extrusion of fingers to complete During operation, it is better to lay a layer of paper on the ground to collect scattered fillers 3 There are two kinds of scraping operations: local patching and full scraping (batch scraping) ① local patching is to level the surface defects such as insect holes, nail holes, cracks, bruises, etc of the coated object with putty, and there shall be no excess Residue around ② Batch scraping is to use hole filling colorant or putty to scrape and paint on the whole surface of the coated object, and there is no surplus filler or putty left on the surface The surplus filler shall be wiped off with cloth, and the surplus putty shall be wiped off after drying 4 Precautions for scraping ① the putty or filler used for scraping shall be soft and suitable If it is too dry, it will not move, resulting in uneven coating, and the pore filling agent is not easy to fill the wood hole; if it is too thin, it cannot be filled, and because of the fluidity, the operation is quite troublesome ② Use even force to hold the scraper When operating, the blade should be lowered lightly and the blade should be retracted slightly quickly In addition, it must be carried out in sequence ③ Develop good operation habits, keep the surface clean and do not waste filler Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,