Coating technology: detailed introduction to the construction technology of real stone paint

Core tip: the construction process of real stone paint is detailed as follows 1 Construction equipment and requirements: (1) Air compressor: sufficient air volume, with at least three air pipes, which can meet the simultaneous construction of more than three people (2) Lower pot spray gun: the capacity is 500ml, the caliber is more than 1.3mm, and the capacity cannot be too large, otherwise it is too heavy and inconvenient to operate If the caliber is small, the construction speed is slow, which may delay the construction period, and it is not suitable for large-scale construction (3) Real stone paint spray gun: it can be divided into single gun, double gun, three guns, etc according to different designs and colors, single gun for single color, double gun and three gun for two color and multi color, so as to adapt to different situations 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: the construction process of real stone paint is detailed as follows: 1 Construction equipment and requirements: (1) air compressor: sufficient air volume, with at least three air pipes, which can meet the simultaneous construction of more than three people (2) Lower pot spray gun: the capacity is 500ml, the caliber is more than 1.3mm, and the capacity cannot be too large, otherwise it is too heavy and inconvenient to operate If the caliber is small, the construction speed is slow, which may delay the construction period, and it is not suitable for large-scale construction (3) Real stone paint spray gun: it is divided into single gun, double gun and three guns According to different designs, single gun for single color, double gun and three guns for two color and multi color are selected to adapt to different construction processes (4) Nozzle of various diameters: 4mm, 5mm, 6mm, 8mm, etc different nozzles shall be selected according to the requirements of the sample plate The smaller the diameter is, the smoother the spraying effect will be The larger the diameter is, the larger the spot will be, and the stronger the convex concave feeling will be 2 Construction process: after 12 or 24 hours, polish and spray the bottom oil twice - spray the real stone paint 2-3mm - spray the surface oil twice 3 Construction technical indicators: (1) spray the bottom oil: select the lower spray gun, with the pressure of 4-7kg / cm2, the temperature during construction shall not be lower than 10 ℃, spray twice, with the interval of 2 hours, the thickness of about 30 microns, and dry at room temperature for 12 hours (2) Spray real stone paint: select real stone paint spray gun, control the air pressure at 4-7kg / cm2, construction temperature above 10 ℃, thickness about 2-3mm, if two or three coats are to be applied, the interval is 2 hours, dry for 24 hours before grinding (3) Grinding: use 400-600 mesh sandpaper, gently smooth the raised sand on the surface of the real stone paint Pay attention that the force should not be too strong, otherwise the paint film will be damaged, causing the bottom to loosen In serious cases, the adhesion will be poor, and the real stone paint will fall off (4) Spray the surface oil: select the lower spray gun, the pressure is 4-7kg / cm2, the construction is not lower than 10 ℃, spray twice, the interval is 2 hours, the thickness is about 30 microns, and it takes 7 days to dry completely 4 construction materials and requirements: it is suitable for concrete or cement internal and external walls and brick walls, asbestos cement boards, wood boards, gypsum boards, polyurethane foam boards and other base materials The base course on the surface of construction base material shall be flat, clean and of good strength The new wall shall be dry for one month before construction The old wall shall be renovated The base course shall be leveled first, and the impurities such as loose, peeling surface and dust and oil dirt shall be removed before construction 1 Spraying technology of real stone paint for different spraying objects: first, design the brick size according to the requirements, and then make the brick model with the wood frame on the wall with the primer, spray the real stone paint, and remove the wood frame before the real stone paint is dry 2 Vertical surface spraying: the method of circle drawing is adopted, with a distance of 30cm-40cm, and a radius of about 15cm The spray gun is shaken up and down from time to time, so the spraying speed is fast and uniform, and easy to control If the main overlapping spraying is adopted, the speed is slow, and the upper and lower joints are difficult to control evenly, which will affect the appearance and cause paint defects 3 Roman cylinder spraying: because it is cylindrical, it adopts "m" linear spraying, which is about 40cm away from it The spray gun should be vertical to the cylinder surface, from top to bottom After spraying one side, turn to the other side, and the turning angle is about 60 degrees 4 Square column spraying: the square column has clear edges and corners, which is easy to be blurred due to uneven spraying For the convenience of spraying, spray the edges and corners at a distance of about 50cm, spray at a distance of about 50cm, spray at a distance, the spray flowers can spread, and the area is large and even If the distance is too close, the spray will be thick and uneven, so that the edges and corners cannot be shown, and the overall aesthetic feeling of the original building will be lost 5 Cylindrical small gourd spraying: modern buildings use cylindrical small gourd as handrail decoration, most of which require spraying real stone paint, because of its small and exquisite, highly decorative, and their spraying process is more meticulous The calabash column used for handrail decoration is too close to each other In some places, it is impossible to spray on the front at all, so it is impossible to achieve the ideal effect according to the general spray method Spray with small nozzle at a distance of about 40cm Spray the real stone paint quickly from top to bottom If you can't spray it on the front, shake the spray gun to spray the real stone paint around it as much as possible Then brush the real stone paint with a brush If you don't spray it, you can also apply a layer of the real stone paint with a brush Spray it with a spray gun again It can't be too thin or too thick Cover the brush mark That is to say, if it is thin, it will not have a good protective effect If it is thick, it will cover the original line aesthetic feeling, and may also have cracks and other bad surface phenomena Discussion: 1 Internal and external corner cracks: during the spraying process of real stone paint, sometimes cracks will appear at the internal and external corners, because the internal and external corners are the intersection of two surfaces If the real stone paint is sprayed, there will be two different directions of tension acting on the coating at the internal and external corners at the same time in the drying process, which is easy to crack On site solution: if the internal and external corners of the cracks are found, spray again with a thin spray gun every half an hour until the cracks are covered; for the internal and external corners of the new spray, pay special attention not to spray the thickness once, adopt the thin spray multi-layer method, that is, spray again after the surface is dry, the distance between the spray guns should be far, the movement speed should be fast, and the vertical internal and external corners should not be sprayed, only scattered Shoot, i.e spray two sides to let the edge of the spray flower sweep into the internal and external corners 2 Plane cracks: the main reason may be that the weather temperature difference is large and suddenly becomes cold, resulting in different drying speed of the inner and outer layers, and cracks are formed when the surface is dry and the inner layer is not dry The on-site solution is to use a small nozzle spray gun, spray thin layers, try to control the drying speed of each layer, and the spraying distance is a little far away 3 Cracks in the film forming process: during spraying, the coverage is not uniform or too thick, and cracks appear after film forming on the coating surface, or even cracks appear after several weeks This situation should be analyzed in detail In addition to the spraying method, the formula should be changed if necessary, and trial production should be carried out again 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,