Defects of car spray paint surface - uplift: Also known as wrinkling. During the painting process or the drying process of the paint film, the bulge formed in some areas due to the expansion of the paint surface may take on a different shape. (1) Cause: ①The wrong thinner is used. The use of volatile paint thinners in enamels will promote the rise of the interior paint layer, which will eventual
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Defects of car spray paint surface - shrinkage: During the painting process or the drying process of the paint film, the surface of the topcoat appears wrinkled or shrinks. (1) Cause: ① Improper drying method leads to uneven drying of the paint surface. If the freshly sprayed paint layer is dried or forced dry too quickly, or if the paint shop temperature is too high, the paint on the surface will dry
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What todo if the surface of a white car turns yellow? Cars need to run outside for a long time in the sun and rain. Over time, it is easy to cause the paint surface to lose its luster and turn yellow, especially the popular white cars can be seen everywhere on the road. This will not only affect the appearance of the car, but also affect itslifespan. So what are the reasons for the yellowing of car paint? Oxidation
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Defects in car paint spraying----Shrinkage/Fish Eyes 1. Description: There are a large number of crater-shaped voids or pits ranging from pinholes to 1cm in diameter on the surface of the paint film. Usually, the large-sized pits appear individually, while the small pits appear in sheets with lesser densities. Small impurity particles are generally found in the center of the dent. 2. Reason: The su
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Causes and solutions of needle-like holes in sprayed car paint 1. Reason： 1) Insufficient mixing of polyester fillers； 2) The polished surface still has solvent bubbles； 3) Insufficient bottoming of polyester filler. 2. Prevention： 1) Thoroughly mix the polyester filler; 2) Do not polish the solvent bubble, or completely remove the problem paint film; 3) Fill enough polyester filler.
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Car paint defects -----"Particles" 1. Description: When you touch it with your hand, you can feel that the surface of the paint film is rough and uneven, and many impurity particles are trapped on the surface of the paint film or covered by the paint film. 2. Reason: Impurity particles are mixed into the paint film. 1) Dust, dirt or thread from clothing, or impurities blown from trim edges/sheet metal
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"Whitening" of car paint defects: Description: The surface of the paint film presents a milky white mist. 1. Reason: (1) The water vapor condenses and gets trapped in the wet paint film because the weather is cold and humid when spraying. (2) The drying speed of the used diluent is too fast or the quality is too poor. (3) Use compressed air to blow the paint film to accelerate the evaporation of the solve
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How to deal with cracked car paint Reasons caused cracked car paint: 1. If the old paint layer is handled without errors, it is related to the erosion caused by atmospheric pollution and efflorescence. 2. The new paint coating may be tarnished/cracking due to: too high humidity at the time of application; substrate sensitive to solvent or primer not drying out; substrate not fully drying out; incorrectly mi
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Causes of car paint falling off: The problem of car paint falling off refers to the loss of adhesion to the substrate due to the cracking of the paint after the car is painted, and under the effect of external force, the polyurethane paint is released in small pieces or on a large scale. 1. Reason: （1）. The surface layer of the coated object is too bright, which will cause the problem of the paint polyuret
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Reasons and solutions fortoofast leveling and rough curing of sprayed automotivepaint 1. Reason A. Incorrect spraying pressure or viscosity, spraying method or construction temperature B The hardener or thinner used is not suitable for the environment of the spray booth C Substrate grinding is insufficient D paint is not mixedthoroughly 2. Prevention A. Strictly follow the mixing and construction methods
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Paint Defects - Industrial Fallout: 1. Definition: The paint has corrosion spots. 2. Reason: Industrial fallout: Sediments from foundry and steel mill chimneys. Railroad dust and road debris. Iron particles are mainly found on vertical surfaces, oxidize in high humidity environments, and then attack the paint surface. Damage to paint due to sparks: Dust from trams and railway cables. Abrasive cutting,
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Causes and solutions of dull surface after paint spraying (1) Analysis of the cause making the surface dull after car paint spraying A. Incorrect paint viscosity, spraying method, drying time or spray booth temperature B. Spray gun nozzle (caliber) and spray pressure is incorrect C. Inappropriate thinner (2) Prevention methods A. Accurately adjust the spraying viscosity using the viscosity cup and
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About paint polishing marks: 1. Definition: Very fine scratches on the paint surface, poor gloss, light grey. 2. Reason: Paint marks are more likely to appear when: The paint did not dry long enough; the paint film was too thick; the wrong curing agent was used, or the wrong amount of curing agent was used; too much pressure was applied to the polisher (causing burns when polishing); the polisher was t
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Auto refinish painting process 1. Determine the plan: Before starting the sheet metal spraying, the maintenance master needs to determine the maintenance plan for the degree of damage to the vehicle, and different solutions will be adopted for different degrees. 2. Sheet metal shaping: The deformed parts are to be cut, polished, stretched, fired and reduced. You must know that the sheet metal is not only to
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About paint defects---wrinkling: Swelling and bulging of the base coat when a new film is applied. May appear during application or while drying. 1. Reason: (1) When using 2K products for wet-on-wet operations, the flash-off time is too long (gel state); (2) When the solvent-sensitive paint film is repeatedly sprayed, the wrong product is used or the paint film is too thick; (3) The thickness
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Introduction of 1k Basecoat Colors Topwings Chemical is a professional car paint manufacturer located in Guangzhou city, established for more than 15 years, mainly producing 1k basecoat colors, 2k toners, clear coat, hardener, primer, thinner etc. How much do you know about 1k basecoat colors? Characteristic: 1k basecoat colors with excellent leveling property, easy construction, excellent adhesion power an
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