Corrosion beneath the automotive paint film can be caused by external damage, including: 1. Gravel and stones striking the car during driving, damaging the auto paint film and eroding the metal layer, leading to gradual corrosion beneath the paint film. 2. The metal surface may have been directly touched by hands after pretreatment or may still have accumulated contaminants such as chemicals, sanding water, or pain
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1. Improper selection or use of thinner/Dilute Recommendation: Choose an appropriate thinner based on the painting environment and mix the base coat,clear coat according to the manufacturer'smixingratios. 2. Incorrect spraying viscosity, spraying pressure, evaporation time, and spray booth temperatureetc. Recommendation: Follow the manufacturer's technical guidelines to achieve the correct paint viscosity, adjus
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Incorrect Care Methods of Car Paint Car paint needs regular maintenance, but if it is not done correctly, it can accelerate the aging process instead of helping. Common incorrect care methods include: 1. Using laundry detergent directly for convenience. 2. Using cheap and poor-quality wax or polish to save money. 3. Being careless and resulting in the car paint to be contaminated by various substances w
View >>After spraying auto body repair paint, small pits similar to craters sometimes appear on the edge of the paint surface. why this happens? the causes and solutions to this defect are as follows: 1. The substrate is not cleaned. At any time, the substrate needs to be thoroughly cleaned before painting. 2. The diluent / thinner is not selected properly or the proportion is not correct. It is recommended to refer to t
View >>The car body newly sprayed with varnish obviously had a high gloss, but why did it lose its luster the next day? The reasons why clear coat loses its gloss may be as following reasons: 1. The color paint layer is too thick, and spray the varnish layer directly before it dried. 2. Improper selection of diluent/thinner. 3. The ratio of curing agent/hardener or thinner is incorrect. 4. Polish before the coating
View >>color penetration means that, the color of the new painted surface bleeds through the original paint, causing the color changing of the topcoat. the main reason is as below: 1. The old paint film was not sealed before painting new liquid auto paint. 2. The old paint film has not been cleaned thoroughly and soluble dye remains. 3. There's reaction and dissolve between the pigments of the original car p
View >>The phenomenon of silver powder accumulation means that the surface of newly sprayed paint film is turbid and dull, and the silver powder gathers together to form a cloudy ball like. The main reasons for the dislocation and disorderly arrangement of silver powder are: 1. Improper thinner or its quality is poor. 2. Spray viscosity is too high or too low. 3. Auto paint is not stirred incompletely, and paint film thick
View >>The appearance of orange peel in sprayed auto paint means that the surface of the newly car paint film is not smooth, has low gloss and poor leveling, which make it looks like a wrinkled orange peel. It is usually caused by the following reasons: 1. The paint is too thick and the spray viscosity is too high; 2. Too little thinner is mixed, or the thinner/diluent is improperly selected; 3. Improper adjustment of
View >>Generally speaking, car paint color coating is divided into ordinary paint, metallic paint and pearlescent paint. The main components of ordinary paint are resins, pigments and additives; while metallic paint adds fine aluminum particles; and pearlescent paint adds mica particles. Metallic paint is one of the popular topcoats nowadays, because it looks very shiny. In addition, due to adding metallic powder, the hardn
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Car paint turning into white color after spraying refers to the phenomenon of whitening or fogging of the newly sprayed coating. Below is the main reasons: 1. The ambient humidity is too high during the spraying process; 2. Improper selection of diluent. Thinner that evaporates too quickly causes the surface temperature of the paint film to drop sharply, resulting in water vapor to condense on the paint fi
View >>Watermarks means there are corrosion-like spots showing on the carpaint surface, in white or yellow color. It is less common on the sides of the car body, usually occurs on the car roof, luggage cover etc. that's because: 1.The new spray paint film was exposed to water droplets or splashed with water without being fully dried condition, especially the water droplets with high mineral content. When this water mixes w
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Overspray refers to a rough paint finish on the surface of the topcoat. After application, excess paint is no longer absorbed on the newly sprayed surface, and the dried paint particles adhere to the new paint film. Cause: 1. Insufficient thinner is used when mixing paint, and the viscosity of the paint is too high 2. The thinner dries too quickly 3.Using improper spray gun and tools 4. Improper constru
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The adhesion of auto paint is mainly reflected in two aspects, one is the adhesion of the primer to the substrate, and the other is the connection between coatings. So if adhesion is poor, it’s usually because: 1. The surface of the sprayed parts has not been cleaned thoroughly, leaving residues such as oil, fat, wax, rust, etc.; 2. The substrate is not polished or is not polished sufficiently; 3. Failure to sel
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1. Definition and Overview Curing agents, also known as hardening agents, are substances that induce or accelerate the curing process of resins, polymers, and other materials. They play a crucial role in converting liquid resins into solid, durable, and useful products. 2. Classification and Characteristics Curing agents are broadly classified based on their chemistry and the type of resin they are designed to cure.
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Applications of Varnish Automotive Industry: Used on car bodies, bumpers, and other exterior surfaces. Marine Industry: Primarily used on boat hulls and deck surfaces. Industrial Equipment: Protects against corrosion on metal equipment and machinery. Architectural Surfaces: Coats and protects building exteriors and interiors. Production Process of Varnish Resin Synthesis: The initial step involves c
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Varnish is a special kind of coating used mainly to protect the surface of the carand enhance its aesthetic appearance. It hasexcellent weather resistance, wear resistance, and scratch resistance, which can effectively resist UV rays and various pollutants, keeping the car's surface shiny and colorful fora long time. In addition, Varnish alsohas good adhesion and flexibility, which canadapt to the various shapes and textures
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