Coating technology: coating technology disclosure

Core tip: technical disclosure has the following provisions: 1、 General provisions: 1 The construction of water soluble coating, solvent coating and art coating 2 The base treatment of finishing works shall meet the following requirements: Before coating construction, the concrete or plastering base of new buildings shall be painted with alkali resistant sealing primer Before coating construction, the old wall surface shall be clear of the loose old decoration layer and coated with interface agent When the concrete or plastering base is painted with solvent based coating, the water content shall not be greater than 8% When the emulsion type coating is painted, the water content shall not be greater than 8% Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Coating home news: technical disclosure has the following provisions: 1 General provisions: 1 Construction of water-soluble coating, solvent coating, art coating and other sub projects 2 The base treatment of finishing works shall meet the following requirements: the concrete or plastering base of new buildings shall be painted with alkali resistant sealing primer before coating construction, and the old walls shall be clear of loose old decoration before coating construction The water content shall not be more than 8% when the concrete or plastering base course is coated with solvent based coating and 10% when the latex based coating is applied The base putty shall be flat, solid and firm without pulverization, peeling and cracks The bonding strength of the interior wall putty shall comply with the provisions of putty for building interior (JG / t3049) 3 The environmental humidity of water-based coating construction shall be between 5-35 ℃, and the quality acceptance of coating works shall be carried out after the coating curing period 2、 Material quality requirements: 1 All materials shall have product name, type, color, production time, storage validity, operation instruction, product qualification certificate, performance test report and mobilization acceptance record 2 The exterior wall coating shall use pigments with alkali resistance and UV resistance 3 The plasticity and workability of putty used in coating engineering shall meet the construction requirements After drying, it shall be firm and the performance of base primer and fabric shall be matched 4 The color and pattern of water-based coating shall meet the design requirements, and the type, model and performance of the coating selected for solvent coating shall meet the design requirements 3、 Construction technology: 1 Construction machines and tools for paint finishing engineering: one is the base treatment tools, the other is the paint application tools and machines, and the manual base treatment tools mainly include: sharp hammer, elbow scraper, circular file, scraper, wire brush and wire bundle Common base treatment small machines and tools: disc grinder, rotary wire brush, steel needle rust removal brush Coating construction tools: oil brush, brush, brush roller Coating machines and tools: PQ-1, pq-2 coating spray gun, high pressure airless spraying machine, portable coating mixer 2 Construction process and construction technology (operation) A various coatings shall be brushed and polished for several times, so as to make the coating meet the requirements of consistent thickness and continuity Each time shall not be too thick, otherwise there will be inconsistent thickness and uneven color, which will affect the decoration effect, especially the paint b The construction process of synthetic resin latex paint is as follows: base treatment → bottom and middle layer plastering → putty scraping → bottom sealing coating → surface coating When plastering the bottom middle layer ash, it should be 10-20 mm thick Two times of plastering should be completed The leveling layer must be very flat, but it is not required to be smooth The surface evenness deviation should not exceed 2 mm, and the vertical perpendicularity deviation should not exceed 3 mm After the middle layer ash is completely solidified and dried, the putty should be applied for two to three times The first time should be filled with pores, pits, gaps and unevenness After it is dried, it should be ground with 0-2 sandpaper The second and third times should be smooth It is to be ground smooth after thin scraping The function of the bottom sealing coating is to close the base, reduce the moisture absorption of the surface layer and the base pan alkali The surface coating construction can be carried out after the bottom sealing coating is dried for 2-3 hours c Construction process of color sand coating: brush one layer of base sealing coating → spray adhesive → spray color stone particles → spray cover coating The base sealing coating is made up of resin emulsion paint and auxiliary agent and water The glue spraying adhesive is the connection between the wall and the coating process The thickness of the glue layer is about 1.5mm, and then the color stone particles are sprayed After 2 hours, the surface coating is sprayed, which has a certain luster after drying d Construction process of waterborne line coating: base treatment → bottom coating → grinding → middle coating → surface coating The line coating consists of one undercoat, two intermediate coats and three or four surface coats After the first layer of primer is completely dried, it shall be ground with sandpaper, and then applied twice in the middle layer During spraying, the pressure shall be kept above 0.6MPa, and the diameter of the spray gun mouth shall be 0.2-2.5mm Each spraying shall not be too much, and only light scanning is allowed, and no sagging is preferred Generally, spraying shall be conducted three to four times, and continuous spraying is strictly prohibited 4、 Quality standard: the construction quality acceptance of finishing works shall be complete, and the provisions of relevant sections and articles in Chapter 10 of code for quality acceptance of building decoration engineering shall be correctly implemented Five, quality assurance measures: 1, when using new coatings, it should be inspected and meet the requirements before the construction can be carried out, and the quality assurance measures of synthetic resin emulsion coatings can be synthesized After that, the coating must be dried after the first coating In winter, indoor construction should be carried out under heating strips 2 Quality assurance measures for water-soluble interior wall coating: the setting speed of toughened coating (porcelain like coating) is fast When using, the container shall be closed, and it shall not be placed open, so as not to solidify or form particles, which can not be used The prepared but not used up coating shall be placed in the container, and 10-20 mm thick colorless glue (supporting product) of toughened coating shall be added for curing and sealing If the coating thickens, it can only be diluted with matching glue, and it is forbidden to mix water The products of the same type from the same manufacturer shall not be mixed with other manufacturers or products of different models 3 Quality assurance measures for enamel coating: the construction temperature of enamel coating shall not be lower than 15 ℃, and the humidity shall not be higher than 25% During the construction of enamel coating, water or dust shall not enter into the coating The construction site shall be well ventilated and open fire is strictly prohibited Special dilution shall be applied, and the paint can be sprayed at least half an hour after configuration, otherwise the film is easy to generate bubbles, and the prepared paint shall be used up within 8 hours 6、 Finished product protection, safety production and environmental protection measures: 1 Finished product protection measures: before the paint is dry, dust pollution, collision and scratch shall be prevented, and cross contamination shall be prevented for the construction of two different colors of paint 2 Safety production and environmental protection measures: sand blasting shall be used for rust prevention, nozzle joints shall be firm, and it is not allowed to block people When the nozzle is blocked, it shall be shut down to eliminate pressure before repair or replacement The construction site shall have good ventilation conditions Otherwise, temporary ventilation shall be provided When painting paints and varnishes harmful to the body, it is necessary to wear gas masks and sealed protective glasses No fireworks are allowed on the construction site and in the warehouse Fire fighting measures shall be taken 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,