What is the process of metal spraying?

Hello I. Surface treatment construction 1, surface cleaning: use a wet towel to clean the surface of the spraying area dirty, and then use a degreaser with a wiping cloth to remove oil. Note: The entire surface treatment construction process must always wear a dust mask 2, assessment of the damaged area: while assessing the use of waste P180 # dry sanding paper on the damaged parts of the label. 3、Sanding the old paint: Use the palm-type dry grinder with an eccentricity of 6mm to sand the old paint to bare metal with P80# dry sanding paper, and sand the plastic parts to bare plastic. Large area or thick gray bottom must first use the star eccentric handle type dry grinder with P80# dry sanding paper to remove the old paint film. Note: Before sanding must be on the neighboring parts, bright strip, tail lights, etc. properly protected 4, sanding feathered edges: the use of palm dry grinder with P120 # of dry sanding paper to sand the feathered edges. 5、Cleaning and degreasing: Use air gun and towel to clean and dust the sanding area, then use wipes and degreasing agent to clean the whole construction area. 6、Spray anti-rust primer: wipe/spray a layer of anti-rust primer in the bare metal area, wipe/spray a layer of plastic primer in the bare plastic area. 7、Scraping atomic gray: use the gray knife to scrape three atomic gray on the damaged area.

The first: scrape the area of pressure scraping. The second course: fill the depression. Flatten the surface. The third course: Note: small cracks and other damage to fiberglass reinforced plastic parts require the use of fiber atomic ash Sand holes and other small defects must also be filled with atomic ash 8, sanding atomic ash: sanding of the dry atomic ash. Step 1: Use P80# dry sanding paper with palm-type dry grinder for smooth rough grinding. Step 2: Use P80# dry sanding paper with hand dry grinder for finishing rough grinding. Step 3: Use P120# dry sanding paper with a hand dry grinder for finishing. Step 4: Use P180# dry sanding paper with a dry planer for fine sanding. Note: Do not use the dry grinder on the atomic ash for finishing sanding 9, repair and inspection: after grinding the construction area of the degree of restoration of the inspection to ensure the quality of construction Note: neighboring pieces of the alignment must be accurate 10, grinding processing: the construction of the grinding qualified area for grinding. Step 1: Use 240# dry sandpaper with palm-type dry grinder to remove sandpaper marks from the repaired area. Step 2: Use 320# dry sandpaper with palm-type dry grinder to remove sandpaper marks from the repaired area and sand the area to which the midway primer is to be applied to no light. Note: The sandpaper marks on the paint surface near the atom gray must be completely removed. 11. Sand the new plastic parts: Remove the mold release agent from the surface of the new plastic parts with the mold release agent cleaning solution.

Step 1: Use the cleaning solution with a red cucumber cloth to sand the new plastic parts to no light. Step 2: Clean the new plastic parts with water and a towel. Step 3: Use water with a red washcloth to polish the new plastic parts. Step 4: Clean the new plastic part completely with water and a towel. Step 5: Use air gun and towel to blow dry the new plastic parts after sanding. Note: The mold release agent cleaning solution must be completely clean 12, cleaning and degreasing: use the air gun with a towel to clean the sanding area dust, use a wipe with degreasing agent to clean the entire construction area. Note: The degreaser should not be wiped on the atomic gray. 13. Anti-coating protection: Use paper tape with masking paper to protect the spraying area around the anti-coating protection. Note: The anti-painting sticker protection of the primer should try to use the reverse sticker protection method. 14. Spraying primer: Spray two or three coats of primer in the repair area, and spray two coats of plastic primer before spraying primer for plastic parts. Note: When spraying the primer must be sprayed on the surrounding vehicles to protect the spraying of primer must be avoided to produce dead boundaries Strictly control the interval between the channel to avoid drooping Spraying of plastic parts of the primer must be added to the softener must be applied to the sanding guide layer Spraying must be sprayed immediately after the completion of the spraying of tools related to cleaning

15, baking and drying: infrared lamps are used to baking of primer, baking time of 30 minutes, baking time of 30 minutes, baking, baking time of 30 minutes, baking, baking time of 30 minutes, baking time of 30 minutes. Baking, baking time for about 30 minutes. Note: Strictly control the baking distance and baking time. 16, remove the sticker: After the primer is dry, remove all the surface stickers from the car body. 17、Sanding the primer: Use P320# dry sanding paper with palm-type dry grinder to sand the dried primer. Note: Do not grind through the primer as much as possible. 18. Abrasion: Use water grinding to abrade the whole construction area. a. Single process topcoat: Use P800 water sandpaper for abrasion treatment. Use P1000 double (three) process topcoat: b. c. Barge area: use P1500# water sandpaper or gray rags for abrasion treatment. d. P1000 water sandpaper: use P1500# water sandpaper or gray rags for abrasion treatment. e. P1500# water sandpaper: use P1500# water sandpaper for abrasion treatment. Note: Do not rub through the varnish when abrading the barge area. 19. Comprehensive Repair: Check and repair sand holes, scratches and other minor defects in the entire construction area. Note: Ensure that the edges and corners of the complete repair 20, clean and blow-dry: use the air gun with a towel to thoroughly clean and blow-dry the entire construction area. Note: to ensure that the corners, crevices of the complete cleaning and blow-drying 21, surface treatment inspection: the surface treatment of the completed vehicle inspection to ensure the quality of construction. Note: Ensure that the construction part of the repair is smooth and accurate alignment Ensure that the repair part of the bottom is not exposed, the primer surface is smooth and flawless.

Ensure that there is no over-grinding or over-spraying between the construction site and neighboring sites. Ensure that the corners and gaps are repaired in place, the smallest part of the meticulous. Second, the top coat construction 1, anti-smear sticker protection: top coat construction personnel using paper tape with masking paper on the construction area for anti-smear sticker protection. Attention: ensure that the corners and seams are completely cleaned and blown dry before applying protection, and ensure that the borders and seams are protected in a standardized way. 2. Into the paint booth: move the vehicle into the paint booth after applying protection and checking and applying protection to the vehicle, and finally use the car coat to cover up the other non-sprayed areas of the vehicle. Note: Construction vehicles without anti-painting sticker protection are prohibited to enter the paint booth. When entering the paint booth, someone must cooperate with the command. 3. Cleaning and Dusting: Clean the whole spraying area with wet and dry wiping cloths together with degreasing agent, and then use sticky dust cloths together with the blowing gun to remove dust from the construction area. Note: Ensure that the corners and crevices are completely cleaned and dusted. 4. Spray topcoat: Spray topcoat on the repair vehicle.