A railway passenger car floor cloth inspection and maintenance process

Abstract

The present invention provides a railway passenger car floor cloth maintenance process, which relates to the railway passenger car maintenance technology field. Specifically comprising: step 1 maintenance pretreatment; step 2 dismantling and replacing all floors and floor cloths of platforms and small corridors at both ends; step 3 inspection and repair of the floor cloths in the passenger compartment; step 4 polishing and dust blowing of the floor cloths of the entire vehicle; step 5 vehicle protection; step 6 cleaning of the floor cloths of the entire vehicle; step 7 painting of the floor cloths of the entire vehicle; step 8 protective removal. The technical solution of the present invention is reasonable, and selective and targeted optimization and adjustment are carried out for different areas and positions of railway passenger cars. Under the premise of taking into account the technical parameter requirements of the floor cloths of passenger cars, it can not only effectively clean and repair the passenger car floors and floor cloths, but also greatly reduce maintenance costs and reduce resource waste. After the floor cloths are repaired according to the solution of the present invention, it is expected that the amount of floor cloth renewal for each vehicle will be reduced by two-thirds, which will greatly save raw material costs and labor costs and improve economic benefits.

Description

Technical Field

[0001] The invention belongs to the technical field of railway passenger car maintenance, and in particular relates to a railway passenger car floor cloth maintenance process. Background Art

[0002] Railway passenger car floor coverings are mostly made of PVC and rubber. Due to limitations in floor covering maintenance capacity and quality, since the introduction of railway passenger car maintenance services, repair shops have traditionally replaced floor coverings with replacements instead of inspecting them. This approach not only results in high material replacement costs and significant waste of human resources, but also generates a significant amount of unnecessary industrial waste, increasing waste disposal challenges and impacting the environment.

[0003] In summary, how to achieve the renovation of railway passenger car floor cloths and extend the service life of the floor cloths is a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The present invention aims to provide a railway passenger car floor covering repair process, effectively resolving the existing technical problem of lacking a railway passenger car floor covering repair solution and only being able to replace the floor covering by cutting it off. Furthermore, existing floor covering replacement solutions suffer from significant color differences between the new and old floor coverings, uneven thickness, and uneven junctions. These raised areas can easily cause delamination and cracking of the floor covering over time, resulting in wasteful resources and a serious detriment to the overall aesthetics of the vehicle.

[0005] The technical solution of the present invention optimizes reasonable steps and carries out targeted updating and cleaning steps for bus floor cloths. Under the condition of ensuring the static friction coefficient, flexibility and other properties of the floor cloth after maintenance, it focuses on reducing the replacement rate of the floor cloth, saving material costs, human resource costs, and reducing the environmental impact caused by the treatment of waste floor cloths.

[0006] To achieve the above object, the present invention provides a railway passenger car floor cloth maintenance process, which specifically includes the following steps:

[0007] Step 1: Maintenance pretreatment;

[0008] Step 2: Remove and replace all the floors and floor coverings at both ends of the platform and the small corridor;

[0009] Step 3 Check and repair the floor cloth in the passenger compartment;

[0010] Step 4: Polish and blow off dust on the entire car floor cloth;

[0011] Step 5: Vehicle protection;

[0012] Step 6: Clean the entire car floor cloth;

[0013] Step 7: Paint the entire car floor cloth;

[0014] Step 8: Protective removal.

[0015] In a preferred embodiment, the step 1 of maintenance pretreatment includes:

[0016] Step 11: Set up a suitable working environment: Before construction, the vehicle must be moved to an indoor and windless environment with an operating temperature of 15℃-30℃ and a relative humidity of no more than 80% rh. It must have a 220V power supply and sufficient clean water.

[0017] Step 12: Check the status of the vehicle floor and floor cloth, and record the wear and tear of the floor cloth in detail.

[0018] In a preferred embodiment, the step 2 of completely dismantling and replacing the floors and floor coverings of the platforms and small corridors at both ends includes:

[0019] Step 21: Decompose the floor cloth at both ends through the platform and the small corridor;

[0020] Step 22: Decompose the floors of the platforms and small corridors at both ends;

[0021] Step 23: Lay new flooring on the platform and small corridor. The updated flooring must be flush with the surface of the unupdated flooring, and the seams must be filled and flush.

[0022] Step 24: Lay new floor cloths on the entire platform and small corridor: the updated floor cloth must be flush with the surface of the unupdated floor cloth, the seams must be 1±0.5mm higher than the surface of the floor cloth, and the updated floor cloth must overlap with the unupdated floor by at least 20mm.

[0023] In a preferred embodiment, the step 3 of inspecting and repairing the passenger interior floor cloth includes:

[0024] Step 31: Clean the floor cloth in the guest room;

[0025] Step 32: Polish the floor cloth in the guest room: Patching and polishing the floor cloth where there are burns, scratches, bulges, etc.

[0026] Step 33: Repair the floor cloth in the passenger room: Use polyurethane adhesive to fill the polished position. The chemical properties of the treated area should not be lower than the technical requirements of the floor cloth, and should be 1±0.5mm higher than the original floor cloth surface.

[0027] In a preferred embodiment, the step 31 of cleaning the floor cloth in the passenger room includes:

[0028] Step 311 Before cleaning: ensure that the disassembled and updated floor cloth has been bonded and cured for more than 24 hours.

[0029] During cleaning in step 312: completely remove the oil and dust from the surface of the floor cloth;

[0030] After cleaning in step 313: completely dry the surface of the floor cloth and use ventilation equipment to accelerate the drying of the substrate.

[0031] In a preferred embodiment, the step 4 of polishing and dust blowing the entire vehicle floor cloth includes:

[0032] Step 41: Polish the entire vehicle floor cloth: Polish and level the entire vehicle floor cloth again, and use #180 sandpaper to roughen the surface of the floor cloth;

[0033] Step 42: Blow away the dust from the entire exposed surface of the vehicle.

[0034] In a preferred embodiment, the step 6 of cleaning the entire vehicle floor cloth includes:

[0035] Step 61: Select a dedicated floor cloth cleaning device and cleaning solvent for secondary cleaning;

[0036] Step 62: Mix the floor cloth cleaning solvent with water in strict accordance with the instructions and spray it onto the surface of the floor cloth;

[0037] Step 63: Use a dedicated floor cloth cleaning device to clean the floor cloth surface. When cleaning, proceed from far to near to make the floor cloth surface clean and dust-free.

[0038] Step 64: After cleaning, the surface of the floor cloth must be blown dry.

[0039] In a preferred embodiment, the step 7 of painting the entire vehicle floor cloth includes:

[0040] Step 71: Applying floor paint;

[0041] Step 72 Floor cloth paint repair: After the paint is dry, perform surface repair, remove surface particles, find the places where the paint coverage is not ideal, ensure that the paint is evenly applied, and there is no dust or dripping on the surface.

[0042] Step 73: Applying floor cloth topcoat;

[0043] Step 74: Floor cloth paint repair: Same method as step 72.

[0044] In a preferred embodiment, the step 71 of applying floor cloth color paint comprises:

[0045] Step 711: fully stirring and mixing the two-component polyurethane paint and the curing agent;

[0046] Step 712: Use a professional brush to apply the paint

[0047] When applying the color paint in step 713, first apply it horizontally and then vertically to ensure that the color paint is applied evenly with a thickness of 30±5μm.

[0048] Step 714: After the paint is applied, dry it. It can be ventilated but not dried.

[0049] In a preferred embodiment, the step 73 of applying the floor cloth topcoat includes:

[0050] Step 731: fully stirring and mixing the two-component polyurethane topcoat and curing agent;

[0051] Step 732: Use a professional paint brush to apply the paint

[0052] When applying the color paint in step 733, first apply it horizontally and then vertically to ensure that the color paint is applied evenly with a thickness of 50±5μm.

[0053] Step 734: After the paint is applied, dry it. It can be ventilated but not dried.

[0054] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0055] 1. This solution is suitable for the overhaul of interior floor coverings for 25G and 25T passenger cars undergoing the A4 maintenance program, and can also be applied to other railway passenger cars. The chemical properties of the repaired floor coverings must not fall below the specifications specified in the "Technical Specifications for Floor Coverings for Railway Passenger Cars and EMUs," thereby meeting customer needs while reducing floor covering replacement costs.

[0056] 2. After the floor cloth is inspected and repaired according to the scheme of the present invention, the amount of floor cloth renewal for each vehicle is expected to be reduced by two-thirds, the floor cloth disassembly time for each vehicle is expected to be reduced by 2 hours, the material cost for each vehicle is expected to be saved by about 2,000 yuan, and the number of floor cloth installation and maintenance personnel for each vehicle is expected to be reduced by 1 person.

[0057] 3. The technical solution of the present invention is reasonable, and it can selectively and specifically optimize and adjust the different areas of railway passenger cars. On the premise of taking into account the technical parameter requirements of passenger car floor cloths, it can not only effectively clean and repair the passenger car floors and floor cloths, but also greatly reduce maintenance costs and reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] These and / or other aspects and advantages of the present invention will become more apparent and more readily understood from the following detailed description of embodiments of the present invention in conjunction with the accompanying drawings, in which:

[0059] Figure 1 It is a schematic diagram of the process of the technical solution of the present invention. DETAILED DESCRIPTION

[0060] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. However, it should be understood that the protection scope of the present invention is not limited to the specific embodiments.

[0061] The embodiment of the present invention provides a railway passenger car floor cloth maintenance process, thereby solving the technical problem that there is no railway passenger car floor cloth maintenance technical solution in the prior art, and the floor cloth to be replaced can only be replaced by cutting it off.

[0062] Example

[0063] like Figure 1 As shown, the present invention provides a railway passenger car floor cloth maintenance process, and the solution specifically includes the following steps:

[0064] Step 1: Maintenance pretreatment;

[0065] Step 2: Remove and replace all the floors and floor coverings at both ends of the platform and the small corridor;

[0066] Step 3 Check and repair the floor cloth in the passenger compartment;

[0067] Step 4: Polish and blow off dust on the entire car floor cloth;

[0068] Step 5: Vehicle protection;

[0069] Step 6: Clean the entire car floor cloth;

[0070] Step 7: Paint the entire car floor cloth;

[0071] Step 8: Protective removal.

[0072] In the railway passenger car floor cloth maintenance process described in the embodiment of the present invention, by replacing all areas with large wear and tear, and performing renovation operations such as floor cloth cleaning and painting on reusable areas, the replacement of the entire vehicle floor cloth is avoided, which reduces resource waste and the disposal of a large amount of waste, saves material and labor costs, and thus improves economic benefits.

[0073] In a preferred embodiment, the step 1 of maintenance pretreatment includes:

[0074] Step 11: Set up a suitable working environment: Before construction, the vehicle must be moved to an indoor and windless environment with an operating temperature of 15℃-30℃ and a relative humidity of no more than 80% rh. It must have a 220V power supply and sufficient clean water.

[0075] Step 12: Check the status of the vehicle floor and floor cloth, and record the wear and tear of the floor cloth in detail.

[0076] Setting up a suitable working environment can prevent environmental factors from affecting the refurbishment process during the inspection process, such as wind, sand, temperature, and humidity, which can adversely affect cleaning and painting operations. Inspect the condition of the vehicle floor and floorcloth and record them in detail, paying particular attention to areas under the windows and where the floorcloth is cut. Ensure the floorcloth is in good adhesion and free of bulges, collapse, etc. This step not only tracks the inspection status of the bus floorcloth but also assesses and analyzes areas of wear and tear, allowing replacement or refurbishment to be determined based on the extent of wear.

[0077] In a preferred embodiment, the step 2 of completely dismantling and replacing the floors and floor coverings of the platforms and small corridors at both ends includes:

[0078] Step 21: Decompose the floor cloth at both ends through the platform and the small corridor;

[0079] Step 22: Decompose the floors of the platforms and small corridors at both ends;

[0080] Step 23: Lay new flooring on the platform and small corridor. The updated flooring must be flush with the surface of the unupdated flooring, and the seams must be filled and flush.

[0081] Step 24: Lay new floor cloths on the entire platform and small corridor. The updated floor cloths must be flush with the surface of the unupdated floor cloths, the seams must be 1±0.5mm higher than the surface of the floor cloths, and the updated floor cloths must overlap with the unupdated floor cloths by at least 20mm. Preferably, the new and old floor cloths can be connected by hot melting or cold welding.

[0082] Preferably, in order to make the joints tighter, a one-component polyurethane sealant may be used for bonding or a PVC welding rod may be used for welding.

[0083] In the present invention, the seam must be 1±0.5 mm higher than the surface of the floor cloth, so that the surfaces of the new and old floor cloths can be made smooth when the floor cloth is subsequently polished.

[0084] Preferably, after the new floors are laid on all the platforms and corridors in step 23, a floor quality inspection step is also included, including:

[0085] Step 231 checks whether the updated floor is securely installed and ensures that the surface of the updated floor cloth is flush with the surface of the floor cloth that has not been removed from the vehicle.

[0086] Preferably, after the new floor cloths are laid on all the platforms and corridors in step 24, a floor cloth quality inspection step is also included, including:

[0087] Step 241: Check that the new and old floor cloths are made of the same material and similar in color, with slight color difference permitted.

[0088] Step 242 checks the connection position of the new and old floor cloths. The connection position is allowed to protrude 1±0.5 mm from the floor cloth surface and is not allowed to be lower than the floor cloth surface.

[0089] In a preferred embodiment, the step 3 of inspecting and repairing the passenger interior floor cloth includes:

[0090] Step 31: Clean the floor cloth in the guest room;

[0091] Step 32: Polish the floor cloth in the guest room: Patching and polishing the floor cloth where there are burns, scratches, bulges, etc.

[0092] Step 33: Repair the floor cloth in the passenger room: Use polyurethane adhesive to fill the polished position. The chemical properties of the treated area should not be lower than the technical requirements of the floor cloth, and should be 1±0.5mm higher than the original floor cloth surface.

[0093] Floor coverings in the passenger compartment generally have low wear and tear, and replacing them completely would be costly and wasteful. Therefore, first clean all the floor coverings in the passenger compartment to remove stains and dust. Then, based on the wear and tear recorded in step 12, sand any burns, scratches, or bulges. Finally, fill the sanded areas with adhesive and repair them. Because the entire vehicle will undergo a subsequent secondary inspection and repair, the repaired area should be 1±0.5mm above the original floor covering surface.

[0094] In a preferred embodiment, the step 31 of cleaning the floor cloth in the passenger room includes:

[0095] Step 311 Before cleaning: ensure that the disassembled and updated floor cloth has been bonded and cured for more than 24 hours.

[0096] During cleaning in step 312: completely remove the oil and dust from the surface of the floor cloth;

[0097] After cleaning in step 313: completely dry the surface of the floor cloth and use ventilation equipment to accelerate the drying of the substrate; preferably, the drying time is 30 to 60 minutes.

[0098] In a preferred embodiment, the step 4 of polishing and dust blowing the entire vehicle floor cloth includes:

[0099] Step 41: Polish the entire vehicle floor cloth: Polish and level the entire vehicle floor cloth again, and use #180 sandpaper to roughen the surface of the floor cloth;

[0100] Step 42: Blow away the dust from the entire exposed surface of the vehicle.

[0101] This step rechecks the condition of the entire vehicle's floor coverings and repairs, sands, and levels any damaged areas, ensuring a smooth, aesthetically pleasing finish. After inspection, the floor coverings are roughened with sandpaper to facilitate painting. Finally, the exposed surfaces of the vehicle are dust-free and vacuumed to avoid any impact on the floor covering's paint job.

[0102] In a preferred embodiment, the step 5 of vehicle protection includes:

[0103] Partitions, wall panels, equipment cabinets and other locations that come into contact with the floor cloth should be carefully protected.

[0104] Preferably, the detailed protection includes: covering and protecting partitions, wall panels, equipment cabinet panels and other materials in contact with the floor cloth with a non-transfer tape of at least 30 mm wide. When protecting with the tape, the edge of the tape must be close to the surface of the floor cloth, and it is not allowed to stick to the floor cloth or expose the base material part of the material to be protected.

[0105] Protecting the vehicle after the dust is blown away can prevent paint from being sprayed onto the surfaces of materials such as partitions, wall panels, and equipment cabinet panels during paint operations, affecting the appearance.

[0106] In a preferred embodiment, the step 6 of cleaning the entire vehicle floor cloth includes:

[0107] Step 61: Select a dedicated floor cloth cleaning device and cleaning solvent for secondary cleaning;

[0108] Step 62: Mix the floor cloth cleaning solvent with water in strict accordance with the instructions and spray it onto the surface of the floor cloth;

[0109] Step 63: Use a dedicated floor cloth cleaning device to clean the floor cloth surface. When cleaning, proceed from far to near to make the floor cloth surface clean and dust-free.

[0110] Step 64: After cleaning, the surface of the floor cloth must be blown dry.

[0111] Preferably, after spraying in step 62, the cleaning agent is allowed to stand for 5 minutes to ensure that the cleaning agent is fully integrated with the floor cloth;

[0112] Preferably, in step 64 of drying the floor cloth surface, ventilation equipment may be used to accelerate the drying of the substrate, and the drying time is 30 to 60 minutes.

[0113] After replacing or repairing the floor cloth, blow away the dust on the surface, and then use special floor cloth cleaning agent and cleaning equipment for a second cleaning to completely remove stains again, ensuring that the floor cloth is clean and pollution-free. After cleaning, paint the floor cloth for protection, and you can complete the floor cloth maintenance work simply and effectively.

[0114] In a preferred embodiment, the step 7 of painting the entire vehicle floor cloth includes:

[0115] Step 71: Applying floor paint;

[0116] Step 72 Floor cloth paint repair: After the paint is dry, perform surface repair, remove surface particles, find the places where the paint coverage is not ideal, ensure that the paint is evenly applied, and there is no dust or dripping on the surface.

[0117] Step 73: Applying floor cloth paint;

[0118] Step 74: Floor cloth paint repair: Same as step 72.

[0119] In the embodiment of the present invention, the painting operation is mainly divided into two parts: applying color paint and applying topcoat. The color paint is used to give the floor cloth color, block light transmission, and enhance the mechanical and chemical properties of the floor cloth. Evenly applying the color paint on the roughened floor cloth can form a coating film on its surface, effectively covering the repair marks of the substrate and providing protection and decoration. At the same time, it can also reduce the color difference between the new and old floor cloths, making the floor cloth more beautiful overall. The role of the topcoat is to combine with the color paint internally to provide protection for the primer, and externally to further improve the tolerance to the external environment. It has excellent pollution resistance, aging resistance, moisture resistance and mildew resistance, thereby reducing the frequency of floor cloth maintenance.

[0120] In a preferred embodiment, the step 71 of applying floor cloth color paint comprises:

[0121] Step 711: fully stirring and mixing the two-component polyurethane paint and the curing agent;

[0122] Step 712: Use a professional paint brush to apply the paint

[0123] When applying the color paint in step 713, first apply it horizontally and then vertically to ensure that the color paint is applied evenly with a thickness of 30±5μm.

[0124] Step 714: After the paint is applied, the paint is dried. Ventilation is allowed but drying is not allowed. Preferably, ventilation equipment can be used to speed up the air flow rate and promote the drying of the paint. The ventilation time is 180 to 240 minutes.

[0125] In a preferred embodiment, the step 73 of applying the floor cloth topcoat includes:

[0126] Step 731: fully stirring and mixing the two-component polyurethane topcoat and curing agent;

[0127] Step 732: Use a professional paint brush to apply the paint

[0128] When applying the color paint in step 733, first apply it horizontally and then vertically to ensure that the color paint is applied evenly with a thickness of 50±5μm.

[0129] Step 734: After the paint is applied, it is dried. Ventilation is allowed but drying is not allowed. Preferably, ventilation equipment can be used to speed up the air flow rate and promote the drying of the paint. The ventilation time is 180 to 240 minutes.

[0130] In a preferred embodiment, after the topcoat is dried, the protection is removed, and a quality control step is also included:

[0131] Step 81: Check again that the entire vehicle floor is securely installed and ensure that the updated floor cloth surface is flush with the surface of the floor cloth that has not been removed from the vehicle.

[0132] Step 82: Check that the connection between the new and old floor cloths and the repaired area are smooth and beautiful. The paint should be covered after the repair is completed.

[0133] Step 83: After the floor cloth paint is dry, it is tested to see if it has technical parameters no less than those of a new floor cloth;

[0134] After all quality controls are passed, the railway coach floor cloth inspection and maintenance work can be completed.

[0135] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A railway passenger car floor cloth maintenance process, characterized in that: The following steps are involved: Step 1: Maintenance pre-processing, including: Step 11: Set up a suitable working environment: Before construction, the vehicle must be moved to an indoor and windless environment with an operating temperature of 15℃-30℃ and a relative humidity of no more than 80% rh. It must have a 220V power supply and sufficient clean water. Step 12: Check the status of the vehicle floor and floor cloth, and record the wear and tear of the floor cloth in detail; Step 2: Remove and replace all floors and floor coverings at both ends of the platform and the small corridor, including: Step 21: Decompose the floor cloth at both ends through the platform and the small corridor; Step 22: Decompose the floors of the platforms and small corridors at both ends; Step 23: Lay new flooring on the platform and small corridor. The updated flooring must be flush with the surface of the unupdated flooring, and the seams must be filled and flush. Step 24: Install new floor coverings on the platform and corridor. The new floor coverings must be flush with the original floor coverings, with the seams 1±0.5mm above the original floor coverings. The new floor coverings must overlap the original floor coverings by at least 20mm. Step 3: Check and repair the passenger interior floor cloth, including: Step 31: Cleaning the floor cloth in the guest room, including: Step 311 Before cleaning: ensure that the disassembled and updated floor cloth has been bonded and cured for more than 24 hours; During cleaning in step 312: completely remove the oil and dust from the surface of the floor cloth; After cleaning in step 313: completely dry the surface of the floor cloth and use ventilation equipment to accelerate the drying of the substrate; Step 32: Polish the floor cloth in the guest room: Patching and polishing the floor cloth where there are burns, scratches, bulges, etc. Step 33: Repair the floor cloth inside the passenger room: Use polyurethane adhesive to fill the polished area. The chemical properties of the treated area should not be lower than the technical requirements of the floor cloth, and should be 1±0.5mm higher than the original floor cloth surface. Step 4: Polish and dust-blow the entire vehicle floor cloth, including: Step 41: Polish the entire vehicle floor cloth: Polish and level the entire vehicle floor cloth again, and use #180 sandpaper to roughen the surface of the floor cloth; Step 42: Blow off the dust from the entire exposed surface of the vehicle; Step 5: Vehicle protection; Step 6: Clean the entire car floor cloth, including: Step 61: Select a dedicated floor cloth cleaning device and cleaning solvent for secondary cleaning; Step 62: Mix the floor cloth cleaning solvent with water in strict accordance with the instructions and spray it onto the surface of the floor cloth; Step 63: Use a dedicated floor cloth cleaning device to clean the floor cloth surface. When cleaning, proceed from far to near to make the floor cloth surface clean and dust-free. Step 64: After cleaning, the surface of the floor cloth must be blown dry; Step 7: Full car floor cloth painting, including: Step 71: Applying floor paint, including: Step 711: fully stirring and mixing the two-component polyurethane paint and the curing agent; Step 712: Use a professional paint brush to apply the color paint; When applying the color paint in step 713, first apply it horizontally and then vertically to ensure that the color paint is applied evenly with a thickness of 30±5μm. Step 714: After the paint is applied, it is dried, and ventilation is allowed, but drying is not allowed; Step 72: Floor cloth paint repair: After the paint is dry, perform surface repair, remove surface particles, find the areas where the paint coverage is not ideal, ensure that the paint is evenly applied, and there is no dust or dripping on the surface; Step 73: Applying floor cloth topcoat, including: Step 731: fully stirring and mixing the two-component polyurethane topcoat and curing agent; Step 732: Use a professional paint brush to apply the paint When applying the color paint in step 733, first apply it horizontally and then vertically to ensure that the color paint is applied evenly with a thickness of 50±5μm. Step 734: After the paint is applied, dry it. Ventilate it but do not dry it. Step 74: Floor cloth paint repair: the same method as step 72; Step 8: Protective removal.

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