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Common Issues and Solutions in UV Vacuum Plating (Part 10)

Common Issues and Solutions in UV Vacuum Plating (Part 10)

In the practical production of UV vacuum plating, poor weather resistance is a critical issue that compromises the long-term performance of products. This deficiency manifests as yellowing, loss of gloss, chalking, or corrosion of the coating after a period of use, particularly in outdoor applications or products exposed to prolonged sunlight. Such defects are often not readily apparent at the time of shipment but gradually emerge during service. To address this problem, a systematic approach is required, encompassing improvements to the topcoat formulation, control of the curing process, protection of the plated layer, and design for environmental adaptability.

11

2026

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06

Common Issues and Solutions in UV Vacuum Plating (Part 9)

Common Issues and Solutions in UV Vacuum Plating (Part 9)

In the practical production of UV vacuum plating, substrate exposure is one of the common defects that compromise both the product’s appearance and its protective performance. Substrate exposure manifests as a loss of the coating layer at the edges and sharp corners of the workpiece, revealing the underlying primer or the bare substrate and creating a stark contrast with the coated areas. To address this defect, a systematic approach is required, encompassing aspects such as shadow‑masking control during vacuum deposition, fixture design, spray‑coating processes, and surface‑treatment techniques, in order to effectively eliminate coating deficiencies and ensure a flawless finished appearance.

09

2026

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06

Common Issues and Solutions in UV Vacuum Plating (Part 8)

Common Issues and Solutions in UV Vacuum Plating (Part 8)

In the practical production of UV vacuum plating, edge whitening is one of the common defects that compromise the consistency of product appearance. It manifests as a lighter, whitish or dull discoloration of the coating at the edges and sharp corners of the workpiece, creating a stark contrast with the metallic luster of the central area. To address this defect, a systematic approach is required, addressing factors such as shadowing effects in vacuum deposition, fixture design, optimization of workpiece geometry, and the condition of the primer layer, in order to effectively enhance the coating quality at the edges.

09

2026

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06

Common Issues and Solutions in UV Vacuum Plating (Part 7)

Common Issues and Solutions in UV Vacuum Plating (Part 7)

In the practical production of UV vacuum plating, coloration of the coating is one of the common defects that adversely affects product appearance. Coating coloration refers to the appearance of iridescent spots on the surface of the metallic film, causing reflected light to exhibit colors rather than a pure silvery white and thereby compromising the uniformity and purity of the metallic finish. To address this defect, systematic measures must be implemented across multiple aspects—such as coating uniformity, the condition of the primer surface, and process parameter control—in order to effectively eliminate colored streaks and achieve a pristine, silvery‑white metallic luster.

09

2026

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06

Common Issues and Solutions in UV Vacuum Plating (Part 6)

Common Issues and Solutions in UV Vacuum Plating (Part 6)

In the practical production of UV vacuum plating, insufficient curing is a critical defect that directly compromises coating performance. This defect manifests as a tacky coating surface with fingerprint marks, or as an internally still‑liquid coating with inadequate hardness. Such issues not only detract from the product’s appearance but, more seriously, prevent the coating from fulfilling its essential protective function. To address this deficiency, systematic measures must be implemented across multiple aspects—equipment maintenance, process parameters, coating formulation, and the curing environment—to ensure complete curing and safeguard product performance.

08

2026

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06

Common Issues and Solutions in UV Vacuum Plating (Part 5)

Common Issues and Solutions in UV Vacuum Plating (Part 5)

In the practical production of UV vacuum plating, pitting is one of the most common defects that compromise surface quality. Pitting manifests as tiny depressions on the coated surface, undermining its smoothness and mirror‑like finish. Unlike particles, which appear as raised features, pitting represents a concave defect; under illumination, it casts shadows along its edges and produces muted internal reflections. Beyond detracting from appearance, pitting also compromises the coating’s density and integrity. To address this defect, a systematic approach is required—covering aspects such as control of coating bubbles, selection and application of defoaming agents, primer sealing, and optimization of spray parameters—in order to effectively minimize pitting and enhance the surface quality of plated products.

08

2026

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06

Common Issues and Solutions in UV Vacuum Plating (Part 4)

Common Issues and Solutions in UV Vacuum Plating (Part 4)

In the practical production of UV vacuum plating, particulates are one of the most common defects that compromise surface quality. These particles appear as tiny protrusions on the coated surface, disrupting smoothness and the mirror‑like finish, thereby significantly degrading the product’s appearance. Particle sizes range from sub‑micron dimensions invisible to the naked eye to millimeter‑scale features that are readily visible; under illumination, they create distinct light spots or shadows at their raised locations. To address this defect, a systematic approach is required—covering environmental control, equipment cleaning, coating formulation, and operational procedures—so as to effectively minimize particle formation and enhance the surface quality of plated products.

08

2026

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06

Common Issues and Solutions in UV Vacuum Plating (Part 3)

Common Issues and Solutions in UV Vacuum Plating (Part 3)

In the practical production of UV vacuum plating, surface orange‑peel defects are among the most common issues affecting product appearance. This defect manifests as a fine, uneven texture on the coated surface that resembles the skin of an orange, significantly compromising the originally bright, smooth mirror finish. To address this issue, a systematic approach is required—considering factors such as primer leveling, spray parameters, wetting properties, and drying rate—in order to effectively enhance coating uniformity and achieve a smooth, mirror‑like finish.

05

2026

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06

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