Paint knowledge: paint coating construction process

Core tip: basic principle: as the requirements of paint and coating construction process are divided into primary, intermediate and advanced, in order to meet the customer's requirements for quality and effect to the maximum extent, Jiayun decoration company must adopt the process requirements above intermediate level for construction, and the solid construction process specification only refers to the process above intermediate level Coating engineering I General Provisions 1.1 the base or base of coating engineering must be dry 1.2 after coating construction, it shall be prevented from water spray, dust and hot air 1.3 the viscosity or consistency of the coating shall be strictly controlled, and there shall be no sagging or brushwork during application No dilution is allowed during application 1.4 double or multiple main coatings Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: basic principle: since the paint and paint construction process requirements are divided into primary, intermediate and advanced, in order to meet the customer's requirements for quality and effect to the maximum extent, Jiayun decoration company must adopt the process requirements above the intermediate level, and the solid construction process specification only refers to the process above the intermediate level Coating engineering I General Provisions 1.1 the base or base of coating engineering must be dry 1.2 after coating construction, it shall be prevented from water spray, dust and hot air 1.3 the viscosity or consistency of the coating shall be strictly controlled, and there shall be no sagging or brushwork during application No dilution is allowed during application 1.4 for the coating with double or multiple main components, the mix proportion shall be specified in the plan, and the mix proportion shall be divided according to the use situation, and the coating shall be fully mixed and used up within the specified time 1.5 each time the coating is applied, it must be carried out after the previous coating is dry, and the application shall be uniform without omission 1.6 the environment temperature of water-based and dairy coating shall be controlled according to the regulations 1.7 when using mechanical spraying, cover the areas not to be sprayed to prevent contamination 1.8 after the application tools are used, they shall be cleaned or soaked in corresponding solvents immediately 1.9 before the application of emulsion paint, the instructions and construction requirements of the product must be checked carefully, and it must be clear whether the product 1) can be diluted with water 2) Type of primer, i.e oily or water based 1.10 the diluting amount of the latex dispenser must be strictly controlled The normal diluting amount is 10%, and the maximum diluting amount is not more than 20% 1.11 the construction temperature of general emulsion paint is above 5 ℃ 1.12 interval of general emulsion paint construction and recoating, more than 4 hours (ambient temperature 25 ℃) 2 Wall top coating 2.1 base treatment 2.1.1 the base surface must be solid, without looseness, differentiation, peeling and bulging 2.1.2 check whether the base course of the wall top surface has cracks 2.1.3 remove the cracks Repair with 1; 3 cement mortar 2.1.4 use 1; 3 cement mortar to repair the missing edges and corners of the basic or base course 2.1.5 clean the dust, dirt and splashes on the surface of the base course, i.e mortar flow marks 2.1.6 the new mortar base must be dried for more than 7 days to ensure that the base is completely dry 2.1.7 if there is differentiation in the foam ash base, the foam ash layer shall be removed, and the putty shall be used again to inlay the 2.1.8 board joint 2.2 materials 2.2.1 use special caulking putty to fill the caulking gap 2.2.2 or use elastic putty to fill the gap 2.2.3 or use gypsum putty to fill in gaps, materials and gypsum powder 2.2.4 after the putty is completely dry, the binding tape shall be pasted, and the binding material can be used Special strap, kraft paper, synthetic fiber cloth 2.3 puttying 2.3.1 if the base course is relatively smooth, in order to enhance the adhesion of putty, the base course can be coated with glue before puttying That is, about 30% of construction glue or 15-20% of emulsion is used 2.3.2 putty materials As far as possible, composite wall putty shall be used, and the composition of wall putty, talcum powder, white glue and cooked glue powder shall be self prepared Mixture ratio 2.3.3 the putty shall be applied in a solid, flat and smooth manner 2.3.4 the internal angle must be snapped and the external angle must be corrected 2.3.5 the large surface must be inlaid with putty on both sides to meet the requirements of flat large surface and flat internal and external corners 2.3.6 after the putty is completely dry, use coarse sandpaper to polish The internal and external corners are basically clear to achieve the goal of "removing the height from the bottom" 2.3.7 the intermediate or final putty shall be polished, and the internal and external corners shall be polished, corrected and straightened No grinding trace is allowed 2.3.8 light can be used to check flatness during grinding 2.3.9 after the putty is inlaid and polished, use a guiding rule to check the flatness of the wall top surface and the straightness of the internal and external corners 3 Apply emulsion paint 3.1.1 clean the dust particles on the top surface 3.1.2 read the product description and construction requirements carefully 3.1.3 check whether the primer and finish paint match 3.2 start construction 3.2.1 apply primer 3.2.1.1 according to the characteristics of primer, the first finishing coat can be applied after drying (generally 3 hours later) 3.2.1.2 according to the characteristics of surface coating, the second finishing coat can be applied after drying (generally 3 hours later) 3.2.2 for construction process, refer to table (1) 3.2.3 For construction process, refer to figure (1) 3.2.4 There are roughly three methods for finishing coat construction Paint rolling method: a) prepare clean containers (5kg plastic bucket or plastic basin), put the paint into the basin, add water to dilute according to the requirements of the paint instructions, and mix well B) the window jambs or furniture that are connected with the wall shall be isolated with masking paper Technical points: C) use the paint brush to brush the places where the barrel cannot be rolled, such as the internal corner and the narrow part of the upper and lower mouth D) for large-scale roll coating, the rolling direction shall be the same, the route shall be W-shaped first, and then rolling up and down smoothly, the coating shall be evenly distributed, and obvious traces shall be avoided at the joints Spray method: a) prepare a clean container (5kg plastic bucket or plastic basin), put the coating into the basin, add water to dilute according to the requirements of the coating instructions, and mix well B) protect and cover the non sprayed parts C) the working pressure of air compressor shall be between 4-8kg / cm2, and the nozzle diameter shall be 2-3mm D) technical requirements E) the distance between the nozzle and the spray surface shall be controlled between 40-60mm f) the walking length of the spray gun shall be controlled within 1m, and the walking route must be in a straight line Batch inlay: due to less use, do not explain Paint construction procedure No process name latex coating intermediate high level 1 cleaning √ 2 filling gaps, partial puttying √ 3 grinding √ 4 the first full puttying √ 5 grinding √ 6 the second full puttying √ 7 grinding √ 8 primer application √ 9 putty re filling √ 10 grinding, polishing √ 11 Apply the first coat of finish √ 12, Polish √ 13, apply the second coat of finish √ 14, Polish √ 15, apply the third coat of finish √ note: a) mechanical spraying may not be limited by the application variables in the table Subject to the quality requirements B) for high-grade wall coating works, it is necessary to increase the number of times of puttying and 1-2 times of coating C) the main process of gypsum board wall top coating works is as shown in the table above, except for the treatment of slab joint D) water resistant putty and coating must be used in rooms with high humidity Construction process of emulsion paint cleaning the top surface of the wall → slab joint treatment → putty deployment → internal and external corners snapping line → full batch of putty → polishing → full batch of putty → light polishing → check the flatness and check the straightness of internal and external corners → deployment of primer → application of primer → grinding and polishing → deployment of top coat paint → application of top coat → grinding and polishing → application of top coat → inspection of application quality → end Home of coatings focuses on coatings, paint coatings, coating technology, news and information of fire retardant coatings, coatings, coating technology, decoration knowledge and decoration renderings of fire retardant coatings,