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Advantages of UV 3C Coatings

Release time:

2026-06-23 17:20

In the field of surface finishing for consumer electronics, UV 3C coatings have become the mainstream technology largely due to their numerous significant advantages. From production efficiency and coating performance to environmental sustainability and aesthetic appeal, UV 3C coatings outperform traditional thermosetting coatings across multiple dimensions. Recognizing these benefits helps explain why this technology is so widely adopted in the 3C industry.

1. Fast curing speed and high production efficiency

The standout advantage of UV 3C coatings lies in their rapid curing speed. Under ultraviolet irradiation, the photoinitiators in the coating swiftly initiate a polymerization reaction, enabling the coating to transition from liquid to solid within seconds. This characteristic stands in stark contrast to conventional thermosetting coatings, which require baking for tens of minutes or even longer.

The efficiency gains from rapid curing manifest in several ways. The production line can operate continuously at high speed, significantly shortening the cycle time of the coating process. Once cured, parts can immediately proceed to the next operation or be packaged directly, eliminating the need for dedicated drying areas or cooling periods. This not only boosts throughput per unit of time but also reduces work-in-process inventory and the footprint of the production facility.

II. Energy efficiency and environmental protection, with low VOC emissions

The environmental advantages of UV‑3C coatings are becoming increasingly evident. UV‑curable coatings boast extremely high solids content and minimal VOC emissions; during curing, virtually no solvents volatilize into the atmosphere, resulting in a significantly lower impact on the ambient air compared with conventional solvent‑based coatings. Radiation curing technology is widely regarded in the industry as a key green‑and‑environmental‑friendly innovation.

The UV curing process is carried out at near‑room temperature, eliminating the need for thermal baking and consuming only about 10% to 20% of the energy required by conventional heat‑cured coatings. This feature not only lowers production costs but also reduces carbon emissions. Against the backdrop of increasingly stringent environmental regulations, the eco‑friendly advantages of UV‑curable 3C coatings give them superior market competitiveness.

In addition, some UV‑cured coating products achieve zero VOC emissions, making them particularly well suited for coating temperature‑sensitive substrates.

III. Excellent coating performance and long-lasting protection

After curing, UV‑3C coatings form a highly crosslinked polymer network, endowing the coating with a range of outstanding physical and chemical properties.

High hardness and excellent wear resistance are the core performance advantages of UV 3C coatings. The coating’s surface boasts exceptional hardness, effectively resisting scratches and abrasion during everyday use. According to industry standards, premium UV 3C coatings achieve a pencil hardness of H or higher and pass the RCA paper‑tape abrasion test for more than 200 cycles without any visible damage, with wear resistance far surpassing that of conventional coatings.

Excellent adhesion enables UV coatings to form a robust bond on common plastic substrates used in 3C products, such as ABS, PC, and PC/ABS. Even on low‑surface‑energy substrates, favorable adhesion can be achieved by using a compatible primer and an adhesion promoter.

Outstanding chemical resistance enables the coating to withstand the corrosive effects of everyday substances such as hand sweat, alcohol, skincare products, and cleaning agents. It can endure more than 1,000 alcohol‑wipe cycles and, under specified conditions, remains free of abnormalities after a 48‑hour high‑temperature, high‑humidity test. These properties ensure the long-term integrity of both the appearance and functionality of electronic devices.

4. Rich surface finishes and high design flexibility

UV 3C coatings can deliver a wide range of surface finishes, meeting the diverse aesthetic design requirements of consumer electronics.

UV coatings enable colorful finishes and high‑metallic‑effect paints, delivering exceptional decorative appeal. Whether you require a high‑gloss mirror finish or a deep matte look, or prefer solid colors or metallic textures, UV 3C coatings consistently deliver the desired visual impact. NCVM (non-conductive vacuum metallization) technology, combined with UV‑curing coating processes, can impart a metallic appearance to substrates such as plastics, significantly enhancing product aesthetics and decorative effects without compromising wireless signal transmission.

In terms of tactile performance, UV coatings can be formulated to integrate multiple touch‑and‑protection features, such as a soft feel and fingerprint resistance, while excimer UV resins deliver a delicate, supple, elastic matte finish.

V. Capable of implementing specialized functions to meet diverse needs.

UV 3C coatings can achieve a variety of specialized functions through the addition of functional additives. Anti‑fingerprint coatings reduce the surface energy of the coating, making it difficult for fingerprint oils to adhere, and are widely used on smartphone touchscreens and housings. Antibacterial coatings, formulated with antimicrobial agents such as silver ions, inhibit the growth of surface bacteria, and their penetration rate continues to rise driven by public‑health demand. In addition, new products like anti‑fingerprint nano‑protective coatings have entered mass production, filling a domestic gap and enabling import substitution for international market leaders.

VI. Conclusion

The advantages of UV 3C coatings are concentrated in several key areas: rapid curing, energy efficiency and environmental friendliness, superior coating performance, a wide range of surface finishes, and the ability to deliver specialized functionalities. Fast curing boosts production efficiency, low VOC emissions align with the trend toward green manufacturing, while high hardness, excellent wear resistance, and outstanding chemical resistance ensure long‑lasting aesthetic appeal. A rich palette of surface effects meets the design demands of consumer electronics, and tailored functional properties address the market’s ongoing pursuit of added value. Together, these benefits form the foundation for the widespread adoption of UV 3C coatings in the consumer electronics industry. As technology continues to advance and environmental regulations grow more stringent, the strengths of UV 3C coatings will become even more pronounced, further expanding their applications.

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 – 3C Coatings
General-purpose
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-102	Bisphenol A epoxy acrylate	High hardness, high gloss, chemical resistance, contains 15% TMPTA.
B-151	Modified epoxy acrylate	Low halogen, yellowing-resistant, excellent plating performance, and strong adhesion.
B-165	Modified epoxy acrylate	Good flexibility and strong adhesion
B-216	Aliphatic polyurethane acrylate	Fast curing, high build, and excellent toughness.
B-368	Aliphatic polyurethane acrylate	Good toughness, excellent leveling, excellent bend resistance, and excellent heat resistance.
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-6019	Special functional group acrylate	Good leveling, excellent wettability, resistant to boiling water, and excellent 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-6380N	Special functional group acrylate	Excellent adhesion to plastics, strong hiding power, and improved paint film appearance.
B-919B	Aliphatic polyurethane acrylate	Fast curing, high hardness, excellent toughness, and superior chemical and wear resistance.
Matte
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-572	Polyester acrylate	Low viscosity, low odor, excellent wettability, suitable for LED UV.
B-650A	Aliphatic polyurethane acrylate	Low viscosity, excellent matting effect, fast curing, and good wettability.
Wearable device
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-6211	Aliphatic polyurethane acrylate	Fast curing, high hardness, scratch-resistant, and free of organotin.
Hand feel
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-328M	Aliphatic polyurethane acrylate	Low gloss, low viscosity, excellent wettability, and a pleasant hand feel.
B-868	Organosilicon photocurable resin	Good leveling, smooth finish, fast curing, and stain resistance.
B-868H	Organosilicon photocurable resin	Good leveling, smooth finish, fast curing, and stain resistance.
Large-area spraying
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.
Car interior
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-6063	Special functional group acrylate	High molecular weight, low curing shrinkage
B-6210	Aliphatic polyurethane acrylate	Low viscosity, chemical resistance, environmental resistance, and dual photocatalytic–thermal curing.
B-6263	Special functional group acrylate	Fast curing, high build, boil-resistant, and excellent toughness.
B-916	Aliphatic polyurethane acrylate	Low viscosity, solvent resistance, chemical resistance, and steel-wool resistance.
B-919B	Aliphatic polyurethane acrylate	Fast curing, high hardness, excellent toughness, and superior chemical and wear resistance.
Resistant to steel wool
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-910A2	Aliphatic polyurethane acrylate	Low viscosity, yellowing resistance, chemical resistance, and steel-wool resistance.
B-916	Aliphatic polyurethane acrylate	Low viscosity, solvent resistance, chemical resistance, and steel-wool resistance.
B-919B	Aliphatic polyurethane acrylate	Fast curing, high hardness, excellent toughness, and superior chemical and wear resistance.
Oil-resistant pen
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-868	Organosilicon photocurable resin	Good leveling, smooth finish, fast curing, and stain resistance.
B-868H	Organosilicon photocurable resin	Good leveling, smooth finish, fast curing, and stain resistance.
Battery casing
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-431	Cycloaliphatic Specialty Acrylate	Yellowing-resistant, excellent wettability, low viscosity, fast curing
B-548	Polyester acrylate	Withstands high temperatures of 250–280°C.
Solid color paint
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-519	Self-curing polyester acrylate	Self-initiated photopolymerization performance
B-560	Polyester acrylate	Fast curing and excellent pigment wetting.
Yellowing resistance
Product Model/English Abbreviation	Product Name/Product Type	Product Features
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-216	Aliphatic polyurethane acrylate	Fast curing, high build, and excellent toughness.
B-296	Aliphatic polyurethane acrylate	Fast curing, chemical resistance, yellowing resistance, impact resistance
B-431	Cycloaliphatic Specialty Acrylate	Yellowing-resistant, excellent wettability, low viscosity, fast curing
Monomer Recommendation
Product Model/English Abbreviation	Product Name/Product Type	Product Features
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.
BM4241 (DiTMPTA-80)	Bis(2,3-dihydroxypropyl) tetraacrylate	High crosslink density, high hardness, chemical and wear resistance, and water resistance.
BM4242 (Di-TMPTA)	Bis-trimethylolpropane tetraacrylate	High crosslink density, high hardness, chemical and wear resistance, and water resistance.
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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