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UV vacuum plating with diverse visual effects

Release time:

2026-05-26 17:30

UV vacuum plating with diverse visual effects

UV vacuum plating technology can impart a metallic finish to non-metallic substrates such as plastics, with visual effects that are far from uniform or static. Conventional vacuum plating delivers a bright silver appearance, characterized by a high-gloss, mirror-like metallic sheen. Building on this foundation, additional topcoat coloring and specialized processing enable a wide array of visual effects, including shimmering silver, matte silver, magical blue, crackle, water‑drop silver, and iridescent hues. This rich palette of color options gives UV vacuum plating greater design flexibility in applications such as cosmetic packaging and consumer electronics.

I. Bright Silver Effect

The bright silver effect is a visual finish commonly used in UV vacuum plating. A high-purity aluminum coating is deposited onto the primer layer, forming a uniform, dense metallic film, which is then sealed with a clear topcoat, resulting in a highly glossy, mirror‑like metallic appearance. With its high reflectivity and mirror‑smooth surface, this effect is frequently employed in cosmetic packaging, smartphone casings, and other products. Its successful realization depends on a smooth, even primer, a dense and uniform plating layer, and a highly transparent topcoat.

II. Flash Silver Effect

The shimmering silver effect is achieved by incorporating specific types of silver powder or pearlescent pigments into the topcoat, giving the coated surface a sparkling metallic sheen. Unlike the mirror-like reflection of bright silver, the shimmering silver effect features a flickering, scintillating glow; its luster varies richly with the viewing angle, resulting in a more dynamic visual impact. This effect is commonly used in high-end cosmetic packaging and consumer electronics where texture and premium appeal are paramount.

III. The Asian Development Bank’s Impact

The matte silver effect is achieved by incorporating a matting agent into the topcoat, reducing the gloss of the coating surface and delivering a soft, understated, matte metallic finish. Rather than striving for the high‑reflectivity of a mirror‑like sheen, this effect emphasizes a subtle, refined silver tone, making it ideal for design aesthetics that prioritize simplicity and sophistication. The matte silver effect is widely used in automotive interior components, high‑end electronics, and other applications.

IV. Magical Blue Effect

The Magic Blue effect is achieved by incorporating a transparent color concentrate into the topcoat, giving the coating a metallic sheen with a subtle blue undertone. While preserving the metallic texture, this finish introduces dynamic color variations, creating a dreamy visual impression. The Magic Blue effect is commonly used in cosmetic packaging—such as perfume caps and lipstick tubes—as well as in consumer electronics like smartphone back panels.

V. Crack Effect

The crackle effect is achieved through a specialized topcoat formulation and curing process that induces controlled cracking in the topcoat layer during curing, exposing the underlying metallic coating. This results in an irregular textured surface, with metallic sheen visible through the cracks, creating a distinctive decorative finish. The density and size of the crackle pattern can be adjusted by modifying the formulation and process parameters. As such, this effect holds unique value in personalized decorative design.

VI. Water Drop Silver Effect

The Water‑Drop Silver effect is achieved through a specialized topcoat formulation, giving the coated surface a visual appearance reminiscent of condensed water droplets. This effect is characterized by subtle, rounded raised areas, with the gloss concentrating and reflecting light at these protrusions, resulting in a distinctive visual impact. The Water‑Drop Silver finish is frequently employed in high‑end cosmetic and gift packaging, creating an elegant and dynamic aesthetic.

VII. Colorful Effects

The iridescent effect is achieved by adding a special optical interference layer to the coating, causing the coated surface to display a variety of color shifts when viewed from different angles. This effect leverages the principle of light interference: a transparent dielectric film is layered on top of a metallic coating, resulting in interference among the reflected light and producing vivid colors. With its rich palette and dynamic variations, the iridescent effect is often employed in highly decorative applications, such as festive gift packaging and fashion accessories.

VIII. Conclusion

UV vacuum plating offers a rich and diverse array of visual effects. The bright silver effect delivers a classic mirror‑like metallic finish; the shimmering silver effect achieves a sparkling luster through the addition of pearlescent pigments; the matte silver effect presents a subdued, non‑reflective metallic tone; the magical blue effect blends blue undertones into the metallic sheen; the crackle effect creates a distinctive texture via controlled cracking; the water‑drop silver effect mimics the visual impression of condensed droplets; and the iridescent effect harnesses optical interference to produce dynamic, multicolored shifts. These effects are realized through topcoat coloring, the incorporation of specialized pigments, or the use of advanced processes, granting UV vacuum plating greater design flexibility for decorative applications in sectors such as cosmetic packaging and consumer electronics. With each visual effect tailored to specific product positioning and design aesthetics, this technology provides a wide spectrum of options for surface decoration.

Disclaimer: The above content has been compiled from publicly available sources and is provided for reference only. If any infringement occurs, please contact us, and we will address it promptly.

Bosheng Recommended Products – Vacuum Plating
Primer
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, contains 20% TPGDA.
B-151	Modified epoxy acrylate	Low halogen, yellowing-resistant, excellent plating performance, and strong adhesion.
B-160D	Modified epoxy acrylate	Good flexibility, yellowing resistance, and excellent adhesion.
B-163	Modified epoxy acrylate	Good flexibility, excellent pigment wetting, and strong adhesion.
B-165	Modified epoxy acrylate	Good flexibility and strong adhesion
B-212A	Aromatic polyurethane acrylate	High cost-performance, excellent plating adhesion, good toughness, and resistant to boiling water.
B-221	Aliphatic polyurethane acrylate	Fast curing, resistant to boiling water
B-268M	Aliphatic polyurethane acrylate	Good flexibility, excellent adhesion, superior plating performance, and strong hiding power.
B-574C	Polyester acrylate	Low viscosity, low odor, excellent wettability, suitable for LED UV.
B-619W	Aliphatic polyurethane acrylate	Fast curing, high hardness, excellent toughness, wear resistance, and chemical resistance.
Intermediate coat
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-374	Aliphatic polyurethane acrylate	Excellent flexibility, good leveling, resistant to abrasion and chemicals, and resistant to yellowing.
B-601	Aromatic polyurethane acrylate	High hardness, scratch resistance, chemical resistance, and excellent cost-effectiveness.
B-6020	Special functional group acrylate	Resistant to boiling water, excellent color development, and strong interlayer adhesion.
Topcoat
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-221	Aliphatic polyurethane acrylate	Fast curing, resistant to boiling water
B-301	Aromatic polyurethane acrylate	Fast curing, excellent toughness, and good sandability.
B-302	Aromatic polyurethane acrylate	Fast curing, high strength, excellent toughness, and good grindability.
B-368	Aliphatic polyurethane acrylate	Good toughness, excellent leveling, excellent bend resistance, and excellent heat resistance.
B-374	Aliphatic polyurethane acrylate	Excellent flexibility, good leveling, resistant to abrasion and chemicals, and resistant to yellowing.
B-574C	Polyester acrylate	Low viscosity, low odor, excellent wettability, suitable for LED UV.
B-601	Aromatic polyurethane acrylate	High hardness, scratch resistance, chemical resistance, and excellent cost-effectiveness.
B-6016C	Special functional group acrylate	Easy to apply, resistant to yellowing and boiling water, and improves the appearance of the paint film.
B-6019	Special functional group acrylate	Good leveling, excellent wettability, resistant to boiling water, and superior color dispersion.
B-609	Aliphatic polyurethane acrylate	Fast curing, high hardness, scratch resistance, and chemical resistance.
B-615A	Aliphatic polyurethane acrylate	Fast curing, excellent toughness, wear resistance, and chemical resistance.
B-619W	Aliphatic polyurethane acrylate	Fast curing, high hardness, excellent toughness, wear resistance, and chemical resistance.
B-6210	Aliphatic polyurethane acrylate	Low viscosity, chemical resistance, environmental resistance, and dual photocatalytic–thermal curing.
B-6211	Aliphatic polyurethane acrylate	Fast curing, high hardness, scratch-resistant, and free of organotin.
B-919B	Aliphatic polyurethane acrylate	Fast curing, high hardness, excellent toughness, and superior chemical and wear resistance.
Monomer Recommendation
Product Model/English Abbreviation	Product Name/Product Type	Product Features
BM2223 (TPGDA)	Dipropylene glycol diacrylate	Good flexibility and low volatility
BM3231 (TMPTA)	Trimethylolpropane triacrylate	High crosslink density, high hardness, high gloss, and excellent wear resistance.
BM3235 (PET3A)	Pentaerythritol triacrylate	Fast curing, high crosslink density, high hardness, and chemical resistance.
BM3380 (3EO-TMPTA)	Pentaerythritol triacrylate	More flexible and less irritating than TMPTA.
BM6261 (DPHA-80)	Dipentaerythritol hexaacrylate	High crosslink density, high hardness, chemical and wear resistance, and water resistance.
BM6263 (DPHA-90)	Dipentaerythritol hexaacrylate	High crosslink density, high hardness, chemical and wear resistance, and water resistance.

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