Exterior wall metal fluorocarbon paint construction process shared

China Paint Online News Information: Fluorocarbon paint refers to fluorine resin as the main film-forming material of a coating, used in the home is very wide, excellent performance, today we look at the fluorocarbon paint construction process.
base surface treatment:
1, substing requirements
cement mortar dusting, smoothing the light. The exterior wall requires waterproofing. Base flatness according to the requirements of advanced ash, yin and yang angle square, straight lines, no empty drum cracking, no oil stain rust, substation moisture content of 8%, PH value 9. Exterior railings, window frames, pipe installation and edge-receiving are completed.2, clean up the dressing
the base surface of the floating paste to remove clean, high joints and protruding points with hand-held grinding machine polishing, so as not to scrape putty too thick.
3, paste the mesh cloth
with thinning waterproof putty paste anti-cracking fiberglass mesh cloth, roll brush flat. Anti-crack glass fiber mesh strength, toughness is good and contains viscose, the joint is not less than 100mm. The function of the glass fiber mesh is to prevent the stress caused by finding the putty to crack too thick and buffer the ash layer to crack.4, cut seam inlay
according to the design of aluminum plate effect sub-grid map line positioning, with a cutting machine cutting grid seam (generally 10-25mm wide, 15-20mm deep), both sides of the seam, chisel the seam mortar, clean, brush interface agent, and then the pasteur cement seam filled into a concave arc (with diameter for the width of the small round rod forming). The role of the split seams is both functional (to prevent large areas of ash cracking, fillers are elastic, waterproof), decorative (imitation aluminum plate effect concave lines) and construction blocks (easy to find flat and spray) role. The section seam requires a consistent arc, straight vertical, with a sling hammer and pull horizontal through the method of control and inspection. Block size to be appropriate, generally 1-2.5 square meters per block, should take into account the facade effect and operating requirements.5, thick putty find flat
according to the block by block batch scraping elastic waterproof coarse putty, respectively, with the block length, width and equal aluminum scraper vertical and horizontal scraping a putty, the second putty to be dried after the first putty construction. When scraping, the two people work together at the same time, even force. Lines to stand up, yin and yang corners to square. The role of coarse putty is to find flat pieces, the more flat each piece the better, at the same time to try to control putty thickness to prevent cracking. Putty requires high bonding strength, good water resistance, good construction performance, no roll, with two-part or single-part polymer cement putty as the best.6, fine putty batch scraping
vertical and horizontal batch scraping a waterproof fine putty, drying with a grinder or sanding board clip fine sandpaper sandpaper sanding flat, sweep away the floating ash. The role of fine putty is to fill the rough surface, so that the base surface is more flat, dense, the gap seams should also be patched in place. Grinding with 240 --- 360 water sandpaper, requiring no sand marks and joints.7, polished putty (also known as oily putty
using extremely delicate polished putty on the base thin scrape one or two, after drying with more than 600 eyes of water sandpaper water carefully polished, requiring not to show the sand marks, hand smooth. The role of polished putty is to form a solid and delicate and dense putty layer, just like the putty used to make furniture paint, after polishing spray paint film plump. Polishing putty can also be waterproof and prevent a large number of primers into the base, saving the amount of paint.fluorocarbon paint construction process:
1, fluorocarbon special closed primer construction
1, the role: closed the bottom trace moisture, to prevent alkaline erosion.
2, tools: air compressors, spray guns, scales, blenders, filters, etc.
3, construction methods, permeable and dosed construction methods: spraying, nozzle size 1.5-2.0, pressure 0.2Mpa; Number of construction times: 1
4, the construction method: (1) the primer according to the proportion of the instructions, and fully stirred evenly, no visible impurities. (2) Grind before spraying and rinse the surface with water, moisture removal before spraying. (3) Spraying, should be thin spray., fluorocarbon paint construction
1, the role: to provide coating surface feel and coating anti-fouling, anti-color properties.
2, tools: air compressors, spray guns, scales, blenders, filters, etc.
3, construction methods, permeable and dosed construction methods: spraying, nozzle size 1.5-2.0, pressure 0.2Mpa; Construction number: 2-3 times
4, construction method: (1) the paint according to the ratio of the instructions, and fully stirred evenly, no visible impurities special thinner specific addition to suitable for construction, stirring must be sufficient, uniform, so that the pigment dispersion is uniform, full reaction; Expected to be ready to use, not equipped with unused materials must be covered; The seasoned material is used up within 8 hours, and the thickened material cannot be used. (2) The ingredients should be cooked for 30 minutes, so that it is fully responsive, in order to achieve the best results. (3) When spraying the first paint, a thin coating method should be used. (4) When spraying the second paint, the interval with the first time should not be less than 4 hours, and should be thick sprayed., fluorocarbon cover light paint construction
1, the role: to provide metal paint coating anti-fouling weather color resistance.
2, tools: air compressors, spray guns, scales, blenders, filters, etc.
3, construction mode, number of times and dosing construction mode: spraying, nozzle size 1.5-2.0, pressure 0.2Mpa; Construction number: 1 time
4, construction method: low paint according to the ratio of the instructions, and fully stirred evenly, no visible impurities. Special thinner specific addition to suitable construction as appropriate: stirring must be sufficient, uniform, so that the pigment dispersed evenly, full response; Expected to be ready to use, unplutched material must be covered; The seasoned material can be placed for up to 8 hours, and the thickened material cannot be used; Spray thinly again.fluorocarbon paint construction precautions:
1, construction temperature 0-35 degrees C, the base temperature is best not less than 5 degrees C.
2, material storage should pay attention to moisture, waterproof, anti-sun direct shooting.
3, gloss consistent, do not allow hanging, leakage.
4, the amount of each ingredient should not be too much, so as not to sit for a long time, resulting in curing.
5, must use special accessories, strictly prohibited water, banana water, alcohol, gasoline and so on.
6, below 85% humidity, temperature 0-35 degrees C is appropriate, do not work under the following conditions: rain, snow, fog, frost, wind, or relative humidity of more than 85%.
7, at room temperature after coating the paint film 7d or so can be completely cured, it is not recommended to use in advance.
8, safety measures and prevention methods: to ensure good ventilation, wear protective equipment, to prevent stains on the skin, eyes. If paint spills into the eyes, rinse immediately with water and seek medical attention in a timely manner. Fireworks are strictly prohibited in the construction environment.