Automobile paint spraying maintenance process

Abstract

The invention relates to innovation of a traditional automobile paint spraying maintenance process. In the step of removing the old paint film, the polishing area is extended, so that the putty and paint adsorption capacity of the edge of the damaged area is improved; in the putty coating and scraping step, the coating and scraping range of the third putty is extended, and the coverage area of the putty coating is increased; in the putty polishing step, a matte annular area putty layer with the specific width of about 20 mm and the thickness of about 0.5 mm on the edge of the putty coating is reserved. The three process innovations can realize no putty marks and other flaws after primer spraying, cancel a paint pre-treatment process in a traditional automobile paint spraying maintenance process, can save energy, save maintenance time, improve maintenance efficiency and improve durability and attractiveness of a coating, have the characteristics of simplicity in operation and the like, and are suitable for various automobile paint spraying maintenance scenes.

Description

Technical Field

[0001] The invention relates to the technical field of automobile paint repair, in particular to an automobile spray paint repair process. Background Art

[0002] In the automobile repair industry, painting technology is a crucial technology. With the continuous increase in the number of cars, the number of vehicle collisions or surface damage is also increasing, so the requirements for automobile painting repair technology are getting higher and higher.

[0003] The traditional automobile paint repair process mainly includes removing the old paint film, applying putty, grinding putty, spraying primer, pre-treatment of topcoat, spraying clear varnish, etc. Although these steps can meet the repair needs to a certain extent, there are still some problems in the actual operation process.

[0004] First, in the process of removing the old paint film, the traditional grinding method often causes excessive damage, affecting the flatness and aesthetics of the panel. At the same time, improper treatment of the feather edge after grinding can easily lead to uneven coating and color difference.

[0005] Secondly, in the process of applying and polishing putty, traditional processes often only focus on repairing the damaged area, while ignoring the transition treatment with the surrounding intact parts. This results in a clear boundary between the repaired coating and the surrounding parts, affecting the overall aesthetics.

[0006] In addition, the inaccurate control of key factors such as paint ratio and spray gun parameters during the painting process will also affect the quality and uniformity of the painting. Therefore, it is necessary to improve and optimize the traditional automobile painting maintenance process to improve the maintenance quality and efficiency.

[0007] In view of the above problems, the present invention proposes an improved automobile paint repair process. By optimizing the grinding method, improving the putty scraping and grinding technology, and accurately controlling the painting parameters, the aim is to improve the quality of the paint, enhance the uniformity and durability of the coating. This process is not only suitable for general automobile paint repair needs, but can also be personalized for different types of vehicles and damage conditions to meet higher maintenance requirements. Summary of the invention

[0008] In order to solve the problems of the prior art, the present invention provides an automobile spray paint repair process.

[0009] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: a car paint repair process, the specific steps are as follows:

[0010] Step 1: Remove the old paint film

[0011] Use No. 5 grinding head with No. 80 dry (or water) sandpaper to grind the damaged area of ​​the plate until the metal is leaking; Grind the feather edge: Use No. 5 grinding head with No. 120 dry (or water) sandpaper to grind the feather edge of the damaged area with a width of about 10mm; Smooth the feather edge: Use No. 5 grinding head with No. 180 dry (or water) sandpaper to smooth the feather edge of the damaged area with a width of about 10mm; Innovation point 1 - First Extension: Use No. 180 dry sandpaper to smooth the feather edge process; Use No. 180 sandpaper to start from the edge of the paint film at the edge of the above process, and then extend outward to a width of about 20mm, and use No. 180 sandpaper to smooth the annular area to a matte state; Polishing the rough area: Use No. 5 grinding head with No. 240 dry (or water) sandpaper to extend from the edge of the feather edge to a ring-shaped rough area about 5mm wide; Remove dust and oil.

[0012] Use a specific type of sanding head and sandpaper to remove the old paint film on the damaged area of ​​the plate until the metal part is exposed. Then, feather-sand and flatten the edges of the damaged area, and extend the sanding area to make it matte. Finally, dust and degrease the sanded area.

[0013] Step 2: Apply putty

[0014] Apply a small amount of epoxy primer to the metal leaking part of the damaged area, with a thickness of 0.5mm; take and stir the putty; take an appropriate amount of putty to fill the center of the damaged area of ​​the plate; take a small amount of putty to scrape the entire damaged area; Innovation point 2 - Second extension: This process is to apply a third layer of putty on the basis of the second layer of putty. The third layer of putty should not only cover the entire second layer of putty area, but also extend outward from the edge of the previous layer of putty to a width of about 20mm, and apply a thickness of 1mm; dry the putty;

[0015] Apply epoxy primer to the metal leaking part of the damaged area, then take and stir the putty. Perform filling and scraping operations in sequence, and add a third layer of putty scraping on the basis of the traditional process, covering the entire area and extending outward to a certain width, and finally dry the applied putty

[0016] Step 3: Polishing the putty

[0017] Use a blow gun to cool the hot putty part; use a No. 3 grinding head with No. 80 dry (or water) sandpaper to grind the raised part and the angular part of the plate putty; use a No. 3 grinding head with No. 120 dry (or water) sandpaper or a hand planer to continue grinding the putty until it is basically level with the intact edge part; use a No. 3 grinding head with No. 180 dry (or water) sandpaper to finely grind the putty part again until the surface of the putty is fine and smooth, and it achieves a natural and smooth transition with the intact edge part; Innovation point three - one reservation, this process is a damaged area treatment process Continuation of the process of grinding putty: When grinding the putty, the putty layer in the matte annular area with a width of 20mm in the above process should be retained, and the thickness should reach 0.5mm (the darker bottom layer can be seen); use No. 3 grinding head with No. 240 dry (or water) sandpaper to extend the annular rough area about 5mm wide from the edge of the putty to the matte state; use No. 3 grinding head with a soft pad and No. 320 sandpaper to grind the flatter part of the whole plate, and use a red scraper cloth to grind the edges, intersections, curved surfaces, and pits of the entire plate until they are smooth, fine, uniform, and matte; remove dust and oil.

[0018] Use different types of grinding heads and sandpaper to grind the putty to achieve a natural and smooth transition with the intact edge to ensure that there is no undesirable effect of putty marks after painting. During the grinding process, retain the putty layer in a matte annular area of ​​a specific width to enhance the uniformity and durability of the coating. Finally, the entire panel is dusted and degreased.

[0019] Step 4: Spray the primer

[0020] Dust and oil the entire panel, and use a sticky cloth to remove dust again; weigh and stir the mid-coat primer, such as 1k mid-coat primer, measure the mid-coat primer and oily thinner in a 1:1 ratio, then stir until uniform, and test the viscosity at the same time; install the primer and adjust the gun: select a primer funnel, pour the adjusted mid-coat primer into the spray gun pot with a funnel, cover the gun pot, adjust the spray gun paint output, flash width, and air outlet pressure to standard parameters; mist spray the damaged area of ​​the panel; perform the first semi-wet spray on the entire panel; flash dry the entire panel; perform a second wet spray on the entire panel; flash dry the entire panel.

[0021] Dust and degrease the panels, then weigh and stir the mid-coat primer. Use a spray gun to mist and wet spray the damaged area, and perform flash drying. Through multiple spraying and flash drying, the mid-coat primer is evenly covered on the panel surface.

[0022] Step 5: Spray paint (topcoat) on the panel

[0023] If the (color paint) topcoat is 2k, generally use the ratio of 2:1:0.5 to calculate and weigh the topcoat (color paint), curing agent and thinner; if the topcoat (color paint) is 1k, use the ratio of 1:1 to mix and weigh the topcoat (color paint) and thinner; stir evenly; test the viscosity; put it into the spray gun pot after filtering; remove dust from the board; mist spray the repair area of ​​the board; perform the first semi-wet spray on the entire board; flash dry the entire board; perform the second wet spray on the entire board; flash dry the entire board.

[0024] Dust and oil the panels, weigh the corresponding topcoat and auxiliary materials according to the topcoat type, and stir them evenly. Use a spray gun to spray the repair area with mist and wet spray, and perform flash drying. By precisely controlling the spraying parameters and times, uniform coverage and good transition of the topcoat can be achieved.

[0025] Step 6: Spray varnish on the panel (measure paint)

[0026] If the (color paint) topcoat is 1k paint, spray the panel with varnish: weigh the varnish and thinner in a 1:1 ratio for 1k varnish; stir the weighed varnish evenly; load into the spray gun pot after filtering; mist spray the repair area of ​​the panel; perform the first semi-wet spray on the entire panel; flash dry the entire panel; perform the second wet spray on the entire panel; flash dry the entire panel.

[0027] When non-1k topcoat is used, the panel needs to be sprayed with varnish. First, dust and degrease the entire panel, then weigh the varnish and thinner and stir them evenly. Use a spray gun to mist and wet spray the repair area and flash dry. Through precise spraying technology and parameter control, the varnish can achieve uniform coverage and smooth effect.

[0028] The beneficial effects of the present invention are:

[0029] 1. In the step of removing the old paint film, the present invention uses No. 180 sandpaper to start from the feather edge line and extend the area of ​​about 20 mm in width outward to polish and level it to a matte state, thereby improving the transition effect between the edge of the coating and the intact area; in the step of applying putty, by extending the range of the third layer of putty, a foundation is laid for eliminating the putty mark, and at the same time, the coverage and uniformity of the coating are enhanced; in the step of polishing putty, a putty layer of about 0.5 mm in the area of ​​about 20 mm in width that transitions from the damaged area to the intact area is retained, which lays a good foundation for the plane transition between the repair area and the intact area and the elimination of the putty mark boundary, thereby improving the durability and aesthetics of the coating, having the advantages of simple operation, uniform coating, natural transition, strong durability, etc., and being suitable for various automotive spray paint maintenance scenarios;

[0030] 2. This practicality improves the efficiency of automobile paint maintenance, saves energy wasted in the pre-treatment process of topcoat, and there is no putty print on the paint surface, forming a good automobile paint maintenance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is step one of the present invention, a schematic diagram of the traditional paint surface polishing structure before the first extended step innovative technology.

[0032] Figure 2 This is step one of the present invention, a schematic diagram of the innovative paint surface polishing structure after the first extended step innovative technology.

[0033] Figure 3 This is step 2 of the present invention, a schematic diagram of the traditional paint surface polishing structure before the second extended step innovative technology.

[0034] Figure 4 This is step two of the present invention, a schematic diagram of the innovative paint surface polishing structure after the second extended step innovative technology.

[0035] Figure 5 This is step three of the present invention, a schematic diagram of the traditional paint surface polishing structure before the innovative technology of the reserved step.

[0036] Figure 6 This is step three of the present invention, a schematic diagram of an innovative paint surface polishing structure after retaining the innovative technology of the step.

[0037] Figure 7 It is a schematic diagram of comparison before and after the technical innovation of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example: Figure 1-7 An automobile paint repair process is shown.

[0040] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: a car paint repair process, the specific steps are as follows:

[0041] Step 1: Remove the old paint film

[0042] (1) Use a No. 5 grinding head and No. 80 dry (or wet) sandpaper to grind the damaged area of ​​the plate until metal leaks;

[0043] (2) Grinding feather edge: Use a No. 5 grinding head and No. 120 dry (or wet) sandpaper to grind the feather edge of the metal edge of the damaged area with a width of about 10 mm;

[0044] (3) Smooth feather edge: Use a No. 5 grinding head with No. 180 dry (or water) sandpaper to smooth the feather edge of the metal edge of the damaged area with a width of about 10mm; and our innovation is based on this;

[0045] (4) First extension: the continuation of the process of smoothing the feather edge with 180-grit dry sandpaper; in the traditional damaged area treatment process, only 180-grit sandpaper is used to smooth the feather edge with a width of 10 mm, but now on this basis, starting from the edge of the last paint film, a width of about 20 mm is extended outward, and 180-grit sandpaper is used to smooth the annular area to a matte state;

[0046] The tools required in the first extension step are dust masks, dust gloves, No. 5 grinding head, and No. 180 dry sanding. When grinding with the No. 5 grinding head, press the grinding head lightly, grind evenly, and rotate in one direction;

[0047] (5) Grinding the rough area: Use a No. 5 grinding head with No. 240 dry (or wet) sandpaper to grind the rough area about 5 mm wide from the edge of the feather edge.

[0048] (6) Dust and oil removal;

[0049] Step 2: Apply putty

[0050] (1) Apply a small amount of epoxy primer to the metal leakage area in the damaged area with a thickness of 0.5mm;

[0051] (2) Taking and stirring the putty;

[0052] (3) Take an appropriate amount of putty and fill the center of the damaged area of ​​the plate;

[0053] (4) Take a small amount of putty and scrape the entire damaged area;

[0054] (5) Second extension: This process is a continuation of the scraping and coating process of atomic putty in the damaged area treatment process: the traditional atomic putty coating process is to fill and scrape the first layer, and the second layer is scraped, but now the third layer of atomic putty is applied on this basis. The third layer of atomic putty should not only cover the entire area on the basis of the previous layer of atomic putty, but also extend outward from the edge of the previous layer of atomic putty to a width of about 20mm, and apply atomic putty with a thickness of 1mm, that is, atomic putty should also be applied to the annular matte area with a width of 20mm in the above process;

[0055] The tools required in the second extension step are set as a gas mask, latex gloves, a small scraper and a putty mixing plate, the selected materials are set as standard dry putty, standard dry curing agent, the mixing ratio of standard dry putty and standard dry curing agent is set to 100:1, the scraper cutting angle is set to 30-45 degrees, and one-time scraping is adopted;

[0056] (6) Drying putty;

[0057] Step 3: Polishing the putty

[0058] (1) Use a blow gun to cool the hot putty part;

[0059] (2) Use a No. 3 grinding head and No. 80 dry (or water) sandpaper to grind the raised parts and corners of the plate putty;

[0060] (3) Use a No. 3 grinding head with No. 120 dry (or wet) sandpaper or a hand planer to continue grinding the putty until it is basically flush with the intact edge;

[0061] (4) Use a No. 3 grinding head and No. 180 dry (or wet) sandpaper to finely grind the putty part again until the surface of the putty is fine and smooth, and a natural and smooth transition is achieved with the intact edge part;

[0062] (5) Innovation point 3: One reservation

[0063] This process is a continuation of the polishing putty in the damaged area treatment process: when polishing the putty, the putty layer in the matte ring area with a width of 20mm in the above process should be retained, and the thickness should reach 0.5mm (the darker bottom layer can be seen).

[0064] The tools required in a retention step are a dust mask, dust gloves, No. 5 grinding head and No. 180 dry sand. When grinding, the No. 5 grinding head should be rotated alternately clockwise and counterclockwise. When grinding, lightly press the grinding head and rotate the grinding head at a uniform speed.

[0065] (6) Use a No. 3 grinding head with No. 240 dry (or wet) sandpaper to create a matte finish by extending a 5mm wide ring-shaped rough area from the edge of the putty.

[0066] (7) Use a No. 3 grinding head with a soft pad and No. 320 sandpaper to grind the flatter parts of the entire board. Use a red scraper to grind the edges, intersections, curved surfaces, and pits of the entire board until they are smooth, fine, uniform, and matte.

[0067] (8) Dust and oil removal

[0068] Step 4: Spray the primer

[0069] (1) Remove dust and oil from the entire panel, and use a sticky cloth to remove dust again;

[0070] (2) Weigh and stir the mid-coat primer. For example, for 1k mid-coat primer, measure the mid-coat primer and diluent in a 1:1 ratio, then stir until uniform and test the viscosity at the same time;

[0071] (3) Primer loading and gun adjustment: Select an oily primer funnel, pour the adjusted oily mid-coat primer into the spray gun pot with a funnel, cover the gun pot, and adjust the spray gun's paint output, flash width, and air outlet pressure to standard parameters;

[0072] (4) Mist spraying on the damaged area of ​​the panel;

[0073] (5) Carry out the first semi-wet spraying on the entire panel;

[0074] (6) Flash dry the entire panel;

[0075] (7) Carry out a second wet spraying on the entire panel;

[0076] (8) Flash dry the entire panel;

[0077] Step 5: Spray paint (topcoat) on the panel

[0078] If the (color paint) topcoat is 2k, generally use the ratio of 2:1:0.5 to calculate and weigh the topcoat (color paint), curing agent and thinner; if the topcoat (color paint) is 1k, use the ratio of 1:1 to mix and weigh the topcoat (color paint) and thinner; stir evenly; test the viscosity; put it into the spray gun pot after filtering; remove dust from the board; mist spray the repair area of ​​the board; perform the first semi-wet spray on the entire board; flash dry the entire board; perform the second wet spray on the entire board; flash dry the entire board.

[0079] Dust and oil the panels, weigh the corresponding topcoat and auxiliary materials according to the topcoat type, and stir them evenly. Use a spray gun to spray the repair area with mist and wet spray, and perform flash drying. By precisely controlling the spraying parameters and times, uniform coverage and good transition of the topcoat can be achieved.

[0080] Step 6: Spray varnish on the panel (measure paint)

[0081] If the topcoat (color paint) is 1k paint, it is necessary to spray clear varnish (measure paint). The specific operations are as follows.

[0082] (1) Remove dust and oil from the entire panel;

[0083] (2) The entire panel is dusty;

[0084] (3) Weigh the varnish and thinner of 1k varnish in a ratio of 1:1.

[0085] (4) Stir the weighed varnish evenly, filter it and put it into the spray gun pot;

[0086] (5) Mist spraying on the repaired area of ​​the panel;

[0087] (6) Carry out the first semi-wet spraying on the entire panel;

[0088] (7) Flash dry the entire panel;

[0089] (8) Carry out a second wet spraying on the entire panel;

[0090] (9) Flash dry the entire panel.

[0091] Step 7: Waxing and polishing (traditional, no further explanation)

[0092] In summary, through the above specific implementation, the automobile spray paint repair process of the present invention is realized. This process not only eliminates the topcoat pre-treatment link in the traditional spray paint repair process, saves energy, saves maintenance time, and improves maintenance efficiency, but also has no putty marks after spray painting, improves quality and coating uniformity, and also enhances the durability and aesthetics of the coating. In practical applications, the process parameters can be appropriately adjusted according to different models and damage conditions to achieve the best repair effect.

[0093] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car paint repair process, characterized in that The specific steps are as follows: Step 1: Remove the old paint film (1) Use a No. 5 grinding head and No. 80 dry (or wet) sandpaper to grind the damaged area of ​​the plate until metal leaks out; (2) Grinding feather edge: Use a No. 5 grinding head and No. 120 dry (or wet) sandpaper to grind the feather edge of the metal edge of the damaged area with a width of about 10 mm; (3) Smooth feather edge: Use a No. 5 grinding head and No. 180 dry (or wet) sandpaper to smooth the feather edge of the metal edge of the damaged area with a width of about 10 mm; (4) First extension It is a continuation of the process of smoothing the feather edge with 180-grit dry sandpaper. In the traditional damaged area treatment process, only 180-grit sandpaper is used to smooth the feather edge with a width of 10mm. Now, based on this, starting from the edge of the last paint film, the width of about 20mm is extended outward, and the ring area is smoothed with 180-grit sandpaper to a matte state. (5) Grinding the rough area: Use a No. 5 grinding head with No. 240 dry (or wet) sandpaper to grind the rough area about 5 mm wide from the edge of the feather edge. (6) Dust and oil removal; Step 2: Apply putty (1) Apply a small amount of epoxy primer to the metal leakage area in the damaged area, with a thickness of about 0.5mm; (2) Taking and stirring the putty; (3) Take an appropriate amount of putty and fill the center of the damaged area of ​​the plate; (4) Take a small amount of putty and scrape the entire damaged area; (5) Second extension This process is a continuation of the process of applying atomic putty in the damaged area treatment process: the traditional process of applying atomic putty is to fill and scrape the first layer, and the second layer is to scrape, but now the third layer of atomic putty is applied on this basis. The third layer of atomic putty should not only cover the entire area on the basis of the previous layer of atomic putty, but also extend outward from the edge of the previous layer of atomic putty to a width of about 20mm, and apply atomic putty with a thickness of 1mm, that is, atomic putty should also be applied in the annular matte area with a width of 20mm in the above process; (6) Drying putty; Step 3: Polishing the putty (1) Use a blow gun to cool the hot putty part; (2) Use a No. 3 grinding head and No. 80 dry (or water) sandpaper to grind the raised parts and corners of the plate putty; (3) Use a No. 3 grinding head with No. 120 dry (or wet) sandpaper or a hand planer to continue grinding the putty until it is basically flush with the intact edge; (4) Use a No. 3 grinding head and No. 180 dry (or wet) sandpaper to finely grind the putty part again until the surface of the putty is fine and smooth, and a natural and smooth transition is achieved with the intact edge part; (5) A reservation This process is a continuation of the polishing putty in the damaged area treatment process: when polishing the putty, the putty layer of the matte annular area with a width of 20mm in the above process should be retained, and the thickness should reach 0.5mm (the darker bottom layer can be seen); (6) Use a No. 3 grinding head with No. 240 dry (or water) sandpaper to extend a 5mm wide annular rough area from the edge of the putty to a matte finish; (7) Use a No. 3 grinding head with a soft pad and No. 320 sandpaper to grind the flatter parts of the entire board, and use a red scraper to grind the edges, intersections, curved surfaces, and pits of the entire board until they are smooth, fine, uniform, and matte; (8) Dust and oil removal; Step 4: Spray the primer (1) Remove dust and oil from the entire panel, and use a sticky cloth to remove dust again; (2) Weigh and stir the mid-coat primer. For example, for 1k mid-coat primer, measure the mid-coat primer and diluent in a 1:1 ratio, then stir until uniform and test the viscosity at the same time; (3) Primer loading and gun adjustment: Select an oily primer funnel, pour the adjusted oily mid-coat primer into the spray gun pot with a funnel, cover the gun pot, and adjust the spray gun's paint output, flash width, and air outlet pressure to standard parameters; (4) Mist spraying on the damaged area of ​​the panel (5) Perform the first semi-wet spraying on the entire panel (6) Flash dry the entire panel (7) Perform a second wet spray on the entire panel (8) Flash dry the entire panel; Step 5: Spray paint (topcoat) on the panel (1) Use sticky cloth to remove dust from the panels (2) Paint mixing: If the given topcoat is 2k, generally calculate and weigh the topcoat (color paint), standard dry curing agent, and thinner in a ratio of 2:1:0.5, stir evenly, and test the viscosity; if the topcoat (color paint) is 1k, weigh and mix the topcoat (color paint) and thinner in a ratio of 1:1; stir evenly; (3) Filling the paint and adjusting the gun: Select a varnish (varnish) funnel, pour the adjusted varnish (varnish) into the spray gun pot with a funnel, cover the gun pot, and adjust the spray gun's paint output, flash width, and air pressure to standard parameters. (4) Mist spraying on the repair area of ​​the panel (5) Perform the first semi-wet spraying on the entire panel (6) Flash dry the entire panel (7) Perform a second wet spray on the entire panel (8) Flash dry the entire panel; Step 6: Spray varnish on the panel (measure paint) If the topcoat (color paint) is 1k paint, then you need to spray clear varnish (measurement paint), the specific operation is as follows; (1) Remove dust and oil from the entire panel; (2) The entire panel is dusty; (3) Weigh the varnish and thinner in a ratio of 1:1; (4) Stir the weighed varnish evenly, filter it and put it into the spray gun pot; (5) Mist spraying on the repaired area of ​​the panel; (6) Carry out the first semi-wet spraying on the entire panel; (7) Flash dry the entire panel; (8) Carry out a second wet spraying on the entire panel; (9) Flash dry the entire panel; Step 7: Perform subsequent waxing and polishing.

2. The automobile spray paint repair process according to claim 1, characterized in that: In the step 1, the tools required in the first extension step are dust masks, dust gloves, No. 5 grinding heads, and No. 180 dry sanding. When grinding with the No. 5 grinding head, press the grinding head lightly, grind evenly, and rotate in one direction.

3. The automobile paint repair process according to claim 1, characterized in that: In the step 2, the tools required in the second extension step are set as a gas mask, latex gloves, a small scraper and a putty stirring plate, the selected materials are set as standard dry putty, standard dry curing agent, the mixing ratio of standard dry putty and standard dry curing agent is set to 100:1, the scraper cutting angle is set to 30-45 degrees, and one-time scraping is adopted.

4. The automobile paint repair process according to claim 1, characterized in that In the step three, the tools required in a reserved step are set as a dust mask, dust gloves, No. 5 grinding head and No. 180 dry sand. The No. 5 grinding head is rotated alternately clockwise and counterclockwise during grinding. The grinding head is lightly pressed during grinding, and the grinding head is rotated at a uniform speed.

Images