Extreme color coating and bumper and vehicle comprising same

Abstract

The utility model provides an extreme color coating and a bumper and a vehicle comprising the same. The limit color coating comprises a transparent primer coating, a floating coat coating, a black paint coating, a colored paint coating with a first color, a nano pearlescent paint coating with a second color and a transparent colored varnish coating with a third color which are sequentially laminated from the coating surface to the outside. The limit color coating provided by the utility model has good fullness, adhesive force, aging resistance, stone impact resistance and chemical resistance, can provide a good protection effect on a base body such as a bumper and the like, and is strong in color layering sense, fuller and deeper in color and rich in aesthetic feeling.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of coating technology, and particularly relates to an extreme color coating and a bumper and vehicle comprising the same. BACKGROUND

[0002] The material of the automobile bumper is generally PP (polypropylene), and the anti-aging performance of polypropylene paint is slightly poor. When subjected to ultraviolet irradiation, the polypropylene paint is prone to brittleness. Therefore, the coating is required to protect the PP substrate to prevent the influence of ultraviolet light on the anti-aging performance. Meanwhile, the bumper is also subjected to impacts such as small stones during the operation of the vehicle. Therefore, the coating used for the automobile bumper is required to provide anti-aging and stone impact resistance to ensure the durability of the bumper.

[0003] In addition, with the development of technology, consumers' pursuit of color has gradually increased. At present, the pursuit of the color of the automobile on the automobile market is increasingly extreme, and especially the color that is relatively pure, has levels, and is deep is more favored by consumers. This puts forward higher requirements on the color of the automobile coating. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an extreme color coating and a bumper and vehicle comprising the same. The extreme color coating has good fullness, adhesion, anti-aging performance, stone impact resistance, and chemical resistance, and can provide good protection for the base body such as the bumper. Meanwhile, the color has strong level and is more full and deep, and is rich in beauty.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] In the first aspect, the utility model provides an extreme color coating, which comprises, from the coating surface outward, a transparent primer coating, a middle coating, a black paint coating, a color paint coating with a first color, a nano-beaded luster paint coating with a second color, and a transparent color varnish coating with a third color.

[0007] The transparent primer coating, the middle coating, the black paint coating, the color paint coating with the first color, the nano-beaded luster paint coating with the second color, and the transparent color varnish coating with the third color are sequentially stacked.

[0008] The thickness of the color paint coating with the first color is 10-20 mu m.

[0009] The thickness of the nano-beaded luster paint coating with the second color is 5-15 mu m.

[0010] The thickness of the transparent color varnish coating with the third color is 40-60 mu m.

[0011] In some embodiments of the utility model, the transparent primer coating is a chlorinated polyolefin transparent primer coating.

[0012] In some embodiments of the present application, the thickness of the transparent primer coating is 4-15 μm.

[0013] In some embodiments of the present application, the midcoat coating is a polyurethane midcoat coating.

[0014] In some embodiments of the present application, the thickness of the midcoat coating is 30-70 μm.

[0015] In some embodiments of the present application, the thickness of the black paint coating is 5-15 μm.

[0016] In some embodiments of the present application, the color paint coating with the first color is an acrylic color paint coating with the first color.

[0017] In some embodiments of the present application, the color paint coating with the first color is a red paint coating.

[0018] In some embodiments of the present application, the nano-beaded luster paint coating with the second color is an acrylic nano-beaded luster paint coating with the second color.

[0019] In some embodiments of the present application, the nano-beaded luster paint coating with the second color is a nano-beaded luster paint coating with a purple-red color.

[0020] In some embodiments of the present application, the transparent color varnish coating with the third color is a polyurethane transparent color varnish coating with the third color.

[0021] In some embodiments of the present application, the transparent color varnish coating with the third color is a transparent red varnish coating.

[0022] In a second aspect, the present application provides a bumper, which comprises a bumper base body and the extreme color coating as described in the first aspect coated on the surface of the bumper base body.

[0023] In some embodiments of the present application, the bumper base body is a polypropylene bumper base body.

[0024] In some embodiments of the present application, the bumper base body has an oxidation layer, which is located on the surface of the bumper base body.

[0025] In some embodiments of the present application, the thickness of the oxidation layer is 2-5 μm.

[0026] In a third aspect, the present application provides a vehicle, which comprises the extreme color coating as described in the first aspect or the bumper as described in the second aspect.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] The embodiment of the utility model discloses through utilizing the cooperation of each layer, the obtained limit color coating has good fullness, adhesion, aging resistance, stone resistance and chemical resistance, can provide good protection to the base body such as bumper, and the color level is strong, and the color is more full and deep, and is rich in aesthetic feeling. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments in accordance with the present utility model, and together with the description, serve to explain the principle of the present utility model.

[0030] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, for those skilled in the art, other drawings can also be obtained without creative labor.

[0031] Figure 1 The cross-sectional structure schematic diagram of the automobile bumper provided by the embodiment of the utility model is shown in the figure.

[0032] Among them, the sign is: 1-PP base body, 2-oxidation layer, 3-transparent primer coating, 4-intermediate coating, 5-black paint coating, 6-red paint coating, 7-nano purple red pearl paint coating, 8-transparent red varnish coating. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the above-mentioned purpose, features and advantages of the utility model, the following will further describe the scheme of the utility model.It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein;Obviously, the examples in the specification are only a part of the embodiments of the utility model, not all the embodiments.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs;The terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0036] In the embodiment of the utility model, the term "1K" means that the coating system forming the coating is a single-component system, and "2K" means that the coating system forming the coating is a two-component system.

[0037] In the first aspect, the utility model provides a limit color coating, the limit color coating is from the coating surface outward, include the layering of:

[0038] Transparent primer coating, midcoat coating, black paint coating, color paint coating with first color, nano pearl luster paint coating with second color and transparent color varnish coating with third color;

[0039] The thickness of the color paint coating with first color is 10-20 mu m (for example, it can be 10 mu m, 11 mu m, 12 mu m, 13 mu m, 14 mu m, 15 mu m, 16 mu m, 17 mu m, 18 mu m, 19 mu m or 20 mu m etc.);

[0040] The thickness of the nano pearl luster paint coating with second color is 5-15 mu m (for example, it can be 5 mu m, 6 mu m, 7 mu m, 8 mu m, 9 mu m, 10 mu m, 11 mu m, 12 mu m, 13 mu m, 14 mu m or 15 mu m etc.);

[0041] The thickness of the transparent color varnish coating with third color is 40-60 mu m (for example, it can be 40 mu m, 42 mu m, 43 mu m, 45 mu m, 46 mu m, 48 mu m, 50 mu m, 52 mu m, 53 mu m, 55 mu m, 56 mu m, 58 mu m or 60 mu m etc.).

[0042] In the utility model embodiment, the limit color refers to the coating still meets relevant performance requirements when different color master batches are added to the upper limit value. The "coating surface" refers to the surface to be coated with the limit color coating. "From the coating surface outward" refers to the direction from close to the coating surface to far from the coating surface.

[0043] The utility model embodiment makes the limit color coating have good fullness, adhesion, aging resistance, stone impact resistance and chemical resistance through the cooperation of each layer, can provide good protection for the base body such as bumper, and the color level is strong, the color is more full and deep, and is aesthetic.

[0044] In some embodiments of the utility model, the transparent primer coating is a chlorinated polyolefin transparent primer coating.

[0045] The main material of the chlorinated polyolefin transparent primer coating is chlorinated polyolefin resin, which has excellent adhesion on PP material, and its water resistance, corrosion resistance, mildew resistance and flame retardance can meet the requirements of the automobile industry, and the gloss of the coating is higher.

[0046] In some embodiments of the present application, the thickness of the transparent primer coating is 4-15 μm; for example, it can be 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm, etc. However, the present application is not limited to the listed values, and other values not listed within the range are also applicable.

[0047] In some embodiments of the present application, the midcoat coating is a polyurethane midcoat coating.

[0048] The midcoat coating can fill in the uneven defects on the surface of the transparent primer coating and form good adhesion with the transparent primer coating. After drying, the midcoat coating can be sanded with 400-500 grit sandpaper to remove particulate matter from its surface, and the sanded surface is relatively rough, which can improve the adhesion between the coating and the upper black paint coating.

[0049] In the present application, the polyurethane midcoat coating is preferably a 2K polyurethane midcoat coating, and the coating composition includes hydroxyl acrylic resin, pigment and filler, additives, solvent and polyisocyanate curing agent. The curing condition can be baking at 60°C for 30-45 min. During the curing process, the hydroxyl acrylic resin reacts with the polyisocyanate curing agent to form polyurethane. The coating has good flexibility, filling property, stone chip resistance, easy sandability, etc.

[0050] In some embodiments of the present application, the thickness of the midcoat coating is 30-70 μm; for example, it can be 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm or 70 μm, etc. Preferably, it is 40-50 μm.

[0051] In the present application, the black paint coating preferably uses a fast-drying system coating to avoid poor drying of the coating, which leads to dissolution of the upper coating into the coating and penetration of the coating, thereby affecting the final color effect.

[0052] In the present application, the black paint coating is preferably a 1K black paint coating, and the coating composition includes acrylic resin, cellulose acetate, carbon black, additives and solvent, etc. This system has the characteristics of fast drying and strong hiding power, and can make the side and front colors of the coating more profound. After coating, the coating can be self-dried for 10-15 min, and then an upper color paint coating with a first color is prepared.

[0053] In some embodiments of the present application, the thickness of the black paint coating is 5-15 μm; for example, it can be 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm or 15 μm, etc.

[0054] In some embodiments of the present application, the color paint coating with the first color is an acrylic color paint coating with the first color.

[0055] In some embodiments of the present application, the color paint coating with the first color is a red paint coating.

[0056] In some embodiments of the present application, the acrylic color paint coating with the first color is preferably an acrylic red paint coating, and more preferably a 1K acrylic red paint coating, which includes acrylic resin, red paste, additives, solvents and the like. The coating is transparent red, which can make the color of the black paint coating more profound. After the coating is applied, it can be self-dried for 10-15 minutes, and then a nano pearl luster paint coating with a second color is prepared on the upper layer.

[0057] In some embodiments of the present application, the nano pearl luster paint coating with the second color is an acrylic nano pearl luster paint coating with the second color.

[0058] In some embodiments of the present application, the nano pearl luster paint coating with the second color is a nano purple red pearl luster paint coating.

[0059] In some embodiments of the present application, the acrylic nano pearl luster paint coating with the second color is preferably an acrylic nano purple red pearl luster paint coating, and more preferably a 1K acrylic nano purple red pearl luster paint coating, which includes acrylic resin, nano purple red pearl luster powder, additives, solvents and the like. After the coating is applied, it can be self-dried for 10-15 minutes, and then a transparent color varnish coating with a third color is prepared on the upper layer.

[0060] In some embodiments of the present application, the transparent color varnish coating with the third color is a polyurethane transparent color varnish coating with the third color.

[0061] In some embodiments of the present application, the transparent color varnish coating with the third color is a transparent red varnish coating.

[0062] In some embodiments of the present application, the polyurethane transparent color varnish coating with the third color is preferably a polyurethane transparent red varnish coating, and more preferably a 2K polyurethane transparent red varnish coating, which includes hydroxyl acrylic resin, transparent red paste, ultraviolet light absorber, hindered amine, solvent and polyisocyanate curing agent. The curing condition can be baking at 50-60℃ for 50-60min. During the curing process, the hydroxyl acrylic resin reacts with the polyisocyanate curing agent to form polyurethane. All components in the coating synergistically work to provide good fullness, weather resistance, chemical resistance and the like.

[0063] In some embodiments of the present application, the color paint coating with the first color is a red paint coating, the nano-beaded luster paint coating with the second color is a nano-beaded luster purple-red paint coating, and the transparent color varnish coating with the third color is a transparent red varnish coating.

[0064] In a second aspect, the present application provides a bumper, which comprises a bumper base body and the extreme color coating as described in the first aspect coated on the surface of the bumper base body.

[0065] In some embodiments of the present application, the bumper base body is a polypropylene bumper base body.

[0066] In some embodiments of the present application, the bumper base body has an oxidation layer, which is located on the surface of the bumper base body.

[0067] The material of the automobile bumper base body is usually polypropylene (PP). Polypropylene is a high-density and high-crystalline linear polymer without side chain, which has excellent comprehensive performance. Its advantages include light quality, good toughness and good chemical resistance. Its disadvantages include poor weather resistance and poor adhesion. In order to improve the adhesion of the extreme color coating to the bumper base body, the bumper base body can be subjected to corona treatment to form an oxidation layer. The oxidation layer is easily damaged, and therefore a corresponding coating needs to be coated on the oxidation layer within a specified service time to protect the oxidation layer.

[0068] In some embodiments of the present application, the thickness of the oxidation layer is 2-5 μm; for example, it can be 2 μm, 2.5 μm, 3 μm, 3.5 μm, 4 μm, 4.5 μm or 5 μm, etc.

[0069] In a third aspect, the present application provides a vehicle, which comprises the extreme color coating as described in the first aspect or the bumper as described in the second aspect.

[0070] The extreme color coating provided by the present application can not only be used for coating of automobile bumpers, but also be used for coating of automobile interior and exterior trim.

[0071] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clear, the present application will be further described in detail below in combination with embodiments and drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0072] Where specific techniques or conditions are not specified in the examples, they shall be performed in accordance with conventional techniques or conditions in the art, techniques or conditions described in the literature, or product instructions. Reagents or instruments whose manufacturers are not specified are all commercially available conventional products.

[0073] Example 1

[0074] This embodiment provides a car bumper, the structural diagram of which is shown below. Figure 1 As shown, it includes a bumper base and an extreme color coating applied to the surface of the bumper base;

[0075] The bumper base includes a PP base 1 and an oxide layer 2 located on the surface of the PP base 1;

[0076] The extreme color coating, extending outwards from the coating surface, comprises layers stacked sequentially as follows:

[0077] 3. Transparent primer coating; 4. Intermediate coating; 5. Black paint coating; 6. Red paint coating; 7. Nano-purple-red pearlescent paint coating; and 8. Transparent red varnish coating.

[0078] Among them, the transparent primer coating 3 is a chlorinated polyolefin transparent primer coating with a thickness of 8μm;

[0079] Intermediate coating 4 is a polyurethane intermediate coating with a thickness of 50μm;

[0080] The thickness of the black paint coating 5 is 10 μm;

[0081] Red paint coating 6 is an acrylic resin red paint coating with a thickness of 15μm;

[0082] Nano-purple-red pearlescent paint coating 7 is an acrylic resin nano-purple-red pearlescent paint coating with a thickness of 10μm;

[0083] The transparent red varnish coating 8 is a polyurethane transparent red varnish coating with a thickness of 50μm.

[0084] In this embodiment, the method for manufacturing the car bumper includes the following steps:

[0085] (1) The bumper substrate (PP material) is corona treated to form an oxide layer on its surface;

[0086] (2) Spray 1K chlorinated polyolefin transparent primer (SCC-1168 of Qingyuan Shichuang Coating Technology Co., Ltd.) onto the surface of the bumper substrate after corona treatment, let it air dry for 15 minutes to form a transparent primer coating 3.

[0087] (3) Spraying 2K polyurethane paint (SCC-904 of Qiangyuan Shichuang Paint Technology Co., Ltd.) on the surface of the transparent primer coating layer 3, baking at 60°C for 40 min, after the coating layer is dried, using 500 mesh sandpaper to polish, forming the intermediate coating layer 4;

[0088] (4) Spraying 1K black paint (SCC-M056 of Qiangyuan Shichuang Paint Technology Co., Ltd.) on the surface of the intermediate coating layer 4, self-drying for 10 min, forming the black paint coating layer 5;

[0089] (5) Spraying 1K acrylic resin red paint (SCC-M013 of Qiangyuan Shichuang Paint Technology Co., Ltd.) on the surface of the black paint coating layer 5, self-drying for 15 min, forming the red paint coating layer 6;

[0090] (6) Spraying 1K nano purple red pearl luster paint (SCC-CP02 of Qiangyuan Shichuang Paint Technology Co., Ltd.) on the surface of the red paint coating layer 6, self-drying for 15 min, forming the nano purple red pearl luster paint coating layer 7;

[0091] (7) Spraying 2K transparent red varnish (SCC-GY150523 of Qiangyuan Shichuang Paint Technology Co., Ltd.) on the surface of the nano purple red pearl luster paint coating layer 7, baking at 60°C for 50 min, forming the transparent red varnish coating layer 8, obtaining the automobile bumper.

[0092] Example 2

[0093] The embodiment provides an automobile bumper, which is different from the automobile bumper in the embodiment 1 only in that the thickness of the transparent primer coating layer 3 is 4 μm, the thickness of the intermediate coating layer 4 is 70 μm, the thickness of the black paint coating layer 5 is 5 μm, the thickness of the red paint coating layer 6 is 20 μm, the thickness of the nano purple red pearl luster paint coating layer 7 is 5 μm, and the thickness of the transparent red varnish coating layer 8 is 60 μm.

[0094] Example 3

[0095] The embodiment provides an automobile bumper, which is different from the automobile bumper in the embodiment 1 only in that the thickness of the transparent primer coating layer 3 is 15 μm, the thickness of the intermediate coating layer 4 is 30 μm, the thickness of the black paint coating layer 5 is 15 μm, the thickness of the red paint coating layer 6 is 10 μm, the thickness of the nano purple red pearl luster paint coating layer 7 is 15 μm, and the thickness of the transparent red varnish coating layer 8 is 40 μm.

[0096] Comparative Example 1

[0097] The comparative example provides an automobile bumper, which is different from the automobile bumper in the embodiment 1 only in that the nano purple red pearl luster paint coating layer 7 is replaced by a purple red paint coating layer (the purple red pearl luster powder in the paint is replaced by a purple red paste).

[0098] Comparative Example 2

[0099] This comparative example provides an automobile bumper, which differs from Example 1 only in that the red paint coating 6 is not included.

[0100] Comparative Example 3

[0101] This comparative example provides an automobile bumper, which differs from Example 1 only in that the transparent red varnish coating 8 is replaced by a common transparent varnish coating (transparent red paste is not included in the paint).

[0102] Comparative Example 4

[0103] This comparative example provides an automobile bumper, which differs from Example 1 only in that the thickness of the middle coating 4 is 80 μm.

[0104] Comparative Example 5

[0105] This comparative example provides an automobile bumper, which differs from Example 1 only in that the thickness of the nano-violet red pearl paint coating 7 is 25 μm.

[0106] Comparative Example 6

[0107] This comparative example provides an automobile bumper, which differs from Example 1 only in that the thickness of the transparent red varnish coating 8 is 28 μm.

[0108] Comparative Example 7

[0109] This comparative example provides an automobile bumper, which differs from Example 1 only in that the thickness of the red paint coating 6 is 30 μm.

[0110] Comparative Example 8

[0111] This comparative example provides an automobile bumper, which differs from Example 1 only in that the thickness of the nano-violet red pearl paint coating 7 is 3 μm.

[0112] Performance Test

[0113] The performance of the extreme color coating on the surface of the automobile bumper provided by the above examples and comparative examples is tested, and the test method is as follows:

[0114] Stone Chip Resistance: Test the peeling grade according to QEQY-252-2009;

[0115] Impact Resistance: Test the impact strength according to GB / T 1732;

[0116] Appearance: Visual inspection;

[0117] Cupping Test: Test the cupping index according to GB / T 9753;

[0118] Water Resistance: Test according to GB / T 5209, test at 40°C for 10 days, and observe whether the coating changes;

[0119] The aging resistance is represented by the xenon lamp irradiation time when the gray scale reaches 4 or less and the light loss reaches 15% or more according to GB / T 1865.

[0120] The test results of the above performances are shown in Table 1.

[0121] Table 1

[0122]

[0123]

[0124] In Table 1, the order of the level from high to low is: strong, slightly poor, general, poor.

[0125] As can be seen from the test results in Table 1, the extreme color coating of the surface of the automobile bumper provided by the embodiment of the utility model has good stone impact resistance, impact resistance, anti-cracking and adhesion, water resistance, aging resistance, and the color level is strong and full and deep.

[0126] Among them, compared with Example 1, the nano purple red pearl paint coating 7 in Comparative Example 1 is replaced by a common purple red paint coating, resulting in no color level of the extreme color coating and poor appearance effect.

[0127] Compared with Example 1, Comparative Example 2 does not contain the red paint coating 6, resulting in poor color level of the extreme color coating, color is not full and deep, and poor appearance effect.

[0128] Compared with Example 1, Comparative Example 3 replaces the transparent red varnish coating 8 with a common transparent varnish coating, resulting in poor color level of the extreme color coating, color is not deep, and poor appearance effect.

[0129] Compared with Example 1, in Comparative Example 4, the thickness of the middle coating 4 is too large, resulting in the decrease of the peeling grade, impact strength and cupping index of the extreme color coating, and poor stone impact resistance, impact resistance, anti-cracking and adhesion of the coating.

[0130] Compared with Example 1, in Comparative Example 5, the thickness of the nano purple red pearl paint coating 7 is too large, resulting in the decrease of the peeling grade and cupping index of the extreme color coating, poor color level, color is not full and deep, and poor stone impact resistance, anti-cracking and adhesion of the coating and appearance effect.

[0131] Compared with Example 1, in Comparative Example 6, the thickness of the transparent red varnish coating 8 is too small, resulting in poor stone impact resistance, anti-cracking and adhesion, water resistance, aging resistance and appearance effect of the extreme color coating.

[0132] The thickness of the red lacquer coating 6 in Comparative Example 7 is too large compared to Example 1, resulting in poor impact resistance, crack resistance and adhesion, and color gradation of the extreme color coating.

[0133] The thickness of the nano purple red pearl lacquer coating 7 in Comparative Example 8 is too small compared to Example 1, resulting in poor color gradation of the extreme color coating.

[0134] The above description is merely that of the specific embodiments of the present disclosure to enable a person skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An extreme color coating, characterized in that, The extreme color coating comprises, from the coated surface outward, a transparent primer coating, a base coating, a black paint coating, a color paint coating having a first color, a nano-beaded luster paint coating having a second color, and a transparent color clear paint coating having a third color, which are sequentially stacked. The transparent primer coating is a chlorinated polyolefin transparent primer coating. The base coating is a polyurethane base coating. The black paint coating has a thickness of 5-15 μm. The color paint coating having a first color is an acrylic resin color paint coating having a first color.

2. The extreme color coating according to claim 1, wherein, The color paint coating having a first color is a red paint coating. The nano-beaded luster paint coating having a second color is an acrylic resin nano-beaded luster paint coating having a second color.

3. The extreme color coating of claim 1, wherein, The nano-beaded luster paint coating having a second color is a nano-beaded purple-red luster paint coating. The transparent color clear paint coating having a third color is a polyurethane transparent color clear paint coating having a third color.

4. The extreme color coating of claim 1, wherein, The transparent color clear paint coating having a third color is a transparent red clear paint coating.

5. The extreme color coating of claim 1, wherein, The bumper base body is a polypropylene bumper base body. The bumper base body has an oxidation layer on the surface thereof, and the oxidation layer has a thickness of 2-5 μm.

6. The extreme color coating of claim 1, wherein, The bumper comprises the extreme color coating according to any one of claims 1-7, or the bumper according to claim 8 or 9. ​ 7. The extreme color coating of claim 1, wherein, ​ ​ 8. A bumper characterized by, ​ 9. The bumper of claim 8, wherein, ​ ​ 10. A vehicle characterized by comprising: ​

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