How many processes are required to make a *** of real stone paint? What are the differences?

Real stone paint construction technology 1. Construction equipment and requirements: (1) Air compressor: with a power of more than 5 horsepower, sufficient air volume, and at least three air pipes, which can satisfy more than three people working at the same time. (2) Lower pot spray gun: capacity 500ml, caliber 1.3mm or more, the capacity cannot be too large, otherwise it will be too heavy and inconvenient to operate. Small caliber will slow down the construction speed, which may delay the construction period, and is not suitable for large-area construction. (3) Real stone paint spray gun: divided into single gun, double gun, three gun, etc. According to different colors, single gun is used for single color, double gun or three gun is used for double color and multi-color, so as to adapt to different construction techniques and achieve more ideal spraying. effect. (4) Various diameter nozzles: 4mm, 5mm, 6mm, 8mm, etc. Choose different nozzles according to the requirements of the sample. The smaller the diameter, the smoother and more uniform the spraying effect will be. The larger the diameter, the larger the dots and the stronger the convex and concave feeling. 2 Construction process: After 12 hours and 24 hours, polish and spray primer twice ----- spray real stone paint 2-3mm ----- spray surface oil twice 3 Construction technical indicators: UV, radiation, water-based, additives , Pigment (1) Spray primer: Use a lower pot spray gun with a pressure of 4-7Kg/cm2. The temperature during construction should not be lower than 10 degrees Celsius. Spray twice with an interval of 2 hours. The thickness is about 30 microns. Dry at room temperature for 12 hours. (2) Spray real stone paint: Use a real stone paint spray gun, control the air pressure at 4-7 kg/cm2, the construction temperature is above 10 degrees Celsius, and the thickness is about 2-3mm. If you need to apply two or three coats, the interval is 2 hours. Allow to dry for 24 hours before sanding. (3) Grinding: Use 400--600 grit sandpaper and gently smooth the raised sand grains on the surface of the real stone paint. Be careful not to use too much force, otherwise it will damage the paint film and cause the bottom to loosen. In severe cases, it will cause poor adhesion and the real stone paint to fall off. (4) Spray topcoat: Use a lower pot spray gun with a pressure of 4-7 kg/cm2 and a construction temperature of no less than 10 degrees Celsius. Spray twice with an interval of 2 hours. The thickness is about 30 microns. It takes 7 days to completely dry. 4 Construction substrates and requirements: Suitable for concrete or cement interior and exterior walls and brick walls, as well as asbestos cement boards, wood boards, gypsum boards, polyurethane foam boards and other substrates. The base layer on the surface of the construction substrate should be smooth, clean, and have good strength. The new wall should be hard-working for one month before construction. When renovating an old wall, the base layer must be leveled first to remove loose, peeling surface layers, dust, oil, etc. Construction can only be carried out after removing impurities. Real stone paint spraying technology for different spraying objects 1 Brick-shaped real stone paint: First design the brick size according to the requirements, then use a wooden frame to make a brick-shaped model on the wall that has been coated with primer, and then spray real stone paint. Just remove the wooden frame before the real stone paint is dry. 2 Vertical surface spraying: Use the circle method, with a distance of 30cm-40cm, spray horizontally with a radius of about 15cm, and shake the spray gun up and down from time to time, so that the spray speed is fast and even, and easy to control. If you use the main type of row by row Overlapping spraying is slow and difficult to control evenly at the upper and lower junctions, which will affect the appearance and cause paint defects. 3. Roman cylinder spraying: Because it is a cylindrical shape, "M" linear spraying is used, with a distance of about 40cm. The spray gun should be sprayed vertically on the cylinder, from top to bottom. Spray one side and then turn to the other side. The turning angle is about 60 degrees. As appropriate. 4. Square column spraying: Square columns have sharp edges and corners. It is easy to blur the edges and corners due to uneven spraying. For the convenience of spraying, spray the edges and corners at a distance of about 50cm. When spraying from a long distance, the mist will disperse and the area will be large and even. If the distance is If it is too close, the spray will be thick and uneven if you are not careful, making the angular lines invisible and losing the overall appearance beauty of the original building. 5. Cylindrical small gourd spraying: Modern buildings use cylindrical small gourds for railing decoration, and most of them require spraying with real stone paint. Because they are small and exquisite, they are highly decorative, and their spraying process is also more meticulous. The gourd columns used for railing decoration are too close together, and some areas cannot be sprayed from the front at all, so the ideal effect cannot be achieved by conventional spraying methods. Use a small nozzle for spraying, with a distance of about 40cm, and quickly spray the real stone paint from top to bottom. If you cannot spray from the front, use the method of shaking the spray gun to spray as much real stone paint as possible around it, and then use a brush to smooth it. You can also use a brush to apply a layer of real stone paint on areas that have not been sprayed, and then spray it with a spray gun. It should not be too thin or too thick, just cover the brush marks. If it is too thin, it will not have a good effect. Protection effect, if it is thick, it will cover the original beauty of the lines, and cracks and other undesirable surface phenomena may also occur.

Discussion 1 Cracks at the Yin and Yang corners: During the spraying process of real stone paint, cracks sometimes appear at the Yin and Yang corners. Because the Yin and Yang corners are two intersecting surfaces, if real stone paint is sprayed, there will be tension in two different directions at the same time during the drying process. The coating film acting on the yin and yang corners is prone to cracks. On-site solution: If you find the yin and yang corners of the crack, use a spray gun to cover the yin and yang corners thinly again, and spray again every half an hour until the cracks are covered; for the newly sprayed yin and yang corners, pay special attention not to spray thickly at one time. Adopt a thin spray multi-layer method, that is, spray again after the surface is dry. The spray gun should be far away and the movement speed should be fast. It cannot spray vertically at the Yin and Yang angles. It can only use scattering, that is, spray on both sides, so that the edge of the mist sweeps into the Yin and Yang. horn. 2. Cracks appear on the plane: The main reason may be that the temperature difference between the weather is large and the temperature suddenly becomes cold, resulting in the inner and outer layers drying at different speeds. Control the drying speed of each layer, and the spraying distance should be slightly farther. 3. Cracks appear during the film formation process: When spraying, the coverage is not even enough or too thick. Cracks appear after the film is formed on the coating surface, or even cracks appear after a few weeks. This situation must be analyzed in detail. In addition to paying attention to spraying during construction In addition to the method, if necessary, the formula should be changed and tried again

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