Paint knowledge: wood paint construction process and precautions

Core tips: wood paint construction process: base material finishing treatment → first primer brushing → putty scraping → second primer brushing → finish painting Wood paint construction method: 1 Before painting, paint furniture, etc shall be degreased, decontaminated and polished 2 Use the matching water-based primer, prepare the primer according to the product specification proportion, mix evenly, dilute it with water to the construction viscosity as the case may be, filter it with silk cloth, place it for 20 minutes, and then the construction can be started The first coat of primer shall be applied thinly and uniformly, and shall be dry for 3-4 hours (25 ℃, 50% humidity Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: wood paint construction process: base material finishing treatment → first primer brushing → putty scraping → second primer brushing → finish painting Wood paint construction method: 1 Before painting, paint furniture, etc shall be degreased, decontaminated and polished 2 Use the matching water-based primer, prepare the primer according to the product specification proportion, mix evenly, dilute it with water to the construction viscosity as the case may be, filter it with silk cloth, place it for 20 minutes, and then the construction can be started The first coat of primer shall be applied thinly and uniformly, and it shall be polished with sandpaper after 3-4 hours (25 ℃ and 50% humidity) drying 3 Depending on the depth of the wood grain, it is better to scrape the putty thinly When scraping the putty, it should be scraped into the wood joint with force After the putty is dry, it should be polished thoroughly with sandpaper 4 Apply one or two more coats of primer on the putty or the first coat of primer After the primer is dry, polish it with sandpaper to make the base material delicate and smooth 5 The top coat shall be prepared according to the proportion specified in the product specification After mixing the main paint and curing agent intermittently for 10 minutes, dilute it with water to the construction viscosity as the case may be, filter it with silk cloth, and put it for 20 minutes before curing Generally, the top coat shall be applied for 1-2 times If higher fullness is required, the number of times of top coat can be increased The time of re application shall be within 2-16 hours (25 ℃, 50% humidity) There is no need to polish between the top coat and the top coat If the time of re application exceeds 16 hours, the top coat shall be applied after polishing Before applying the last finishing coat, after the paint film is fully dry (about 12 hours), gently dry grind or wet grind the uneven parts with sand paper of more than 1000 mesh and wipe them clean, then apply or spray the last finishing coat Precautions for wood paint Construction: 1 The wood paint shall be painted after the completion of the ground construction During the construction, ventilation shall be maintained without dust, so as not to affect the overall effect The wood paint and emulsion paint cannot be constructed at the same time 2 The wood should be dry, the moisture content should not exceed 15%, and the construction environment humidity and temperature should not be too high 3 Most of the paint products are three components (main paint, diluent, curing agent), which are stirred evenly before mixing and painted in strict proportion 4 Select appropriate diluent and curing agent to avoid undercutting and wrinkling 5 After mixing, it should be filtered and still for 10-15 minutes before painting 6 After the prepared paint is placed for a period of time, an appropriate amount of diluent can be added to avoid brush marks caused by viscosity rise 7 The prepared paint shall be used up within 4 hours If it is not used up, it shall not be poured back to the original paint barrel 8 The primary construction area should not be more than 4-5 boards wide to avoid brush marks 9 One time construction coating shall not be too thick, and the next layer construction shall be carried out after the coating is dry 10 The primer should not be applied with a thin layer The top coat should not be too thick at one time, otherwise it will affect the drying speed and hardness 11 Before the construction of wood paint, it must be thoroughly and fully polished until the whole paint film feels smooth and flat, so as to avoid poor adhesion between layers, resulting in peeling off 12 Grinding must be carried out after dry, otherwise there will be fog shadow or whitening 13 When the ambient temperature is lower than 7 ℃ or the humidity is higher than 85%, the construction can not be carried out, otherwise, the paint film will be white easily [focus on WeChat official account "paint net"; 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