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Types of Waterborne UV Coatings for 3C Products
Release time:
2026-07-09 23:12
Waterborne UV 3C coatings are increasingly widely used in consumer electronics, home appliances, automotive interiors, and other sectors, with their types exhibiting growing diversity. Depending on the classification criteria—ranging from visual effects to coating structure, and from functional properties to curing mechanisms—they can be categorized into various types. Understanding the classification of waterborne UV 3C coatings and their respective characteristics helps practitioners make informed choices in practical applications, aligning with product positioning, performance requirements, and application conditions.
I. Classification by Appearance
Depending on the appearance, waterborne UV 3C coatings can be classified into two main categories: clearcoats and pigmented coatings.
Varnish types include high-gloss and matte varnishes. Waterborne high-gloss UV varnish can deliver a mirror-like, ultra‑high gloss finish; however, its insufficient abrasion resistance remains a key technical challenge limiting its widespread adoption in the 3C sector. Waterborne matte UV varnish offers a soft, understated matte texture and is used in relatively large quantities. The cured film of waterborne UV coatings exhibits high hardness, with some products achieving a pencil hardness rating of H or higher.
Color coatings include waterborne tinted UV‑single‑coat paints, single‑coat silver‑powder paints, metallic paints, and solid‑color paints. Waterborne tinted UV‑single‑coat paints are widely used, enabling integrated coloration and protection directly on the substrate, with high production efficiency and excellent first‑pass yield. For plastic substrates, waterborne colored coatings deliver a strong metallic appearance and exhibit outstanding adhesion, abrasion resistance, water resistance, flexibility, scratch resistance, resistance to hand sweat, and resistance to damp heat.
II. Classification by Coating Structure
Depending on the complexity of the coating system, waterborne UV 3C coatings can be classified into single-coat systems and multi-layer complementary systems.
Waterborne one-coat coatings are a rapidly developing, innovative coating process in recent years. Compared with the conventional two‑coat system—priming with color paint followed by a UV clear coat—the one‑coat process is a more efficient and environmentally friendly coating method, offering higher production throughput and improved first‑pass yield. These coatings are applied to a wide range of 3C product substrates, including laptops, mice, keycaps, and smartphone back covers.
Multi-coat coating systems comprise distinct functional layers, such as primer, midcoat, and topcoat. Waterborne UV topcoats are applied over the primer to deliver both protective and decorative performance. On metallic substrates, waterborne UV coatings are typically applied directly over the primer as the topcoat.
III. Classification by Functional Characteristics
Depending on specific functional requirements, waterborne UV 3C coatings can be further categorized into various functional types.
Scratch‑resistant coatings are a fundamental functional category, enhancing the coating’s scratch resistance through a highly crosslinked resin system. By employing waterborne UV‑curable resins containing multiple reactive functional groups, the hardness, abrasion resistance, and scratch resistance of the cured film can be significantly improved.
By incorporating organosilicon‑modified components, stain‑resistant coatings can effectively enhance the hydrophobicity and stain‑resistance of the coating film. Conventional waterborne UV coatings, owing to their relatively high resin hydrophilicity, tend to trap contaminants that are difficult to remove; therefore, developing stain‑resistant formulations represents a key area for technological advancement.
Feel‑enhancing coatings achieve a soft or skin‑like tactile effect through a specially engineered resin system. Waterborne UV coatings deliver a silky, substantial touch, meeting the stringent tactile‑experience requirements of wearable devices and consumer electronics.
Other functional coatings include yellowing‑resistant paints and steel‑wool‑resistant paints, each with formulations optimized to meet specific service environments and performance requirements.
IV. Classification According to Curing Mechanism
Pure UV-curable coatings are the mainstream type, achieving curing through a photopolymerization reaction initiated by a photoinitiator under ultraviolet irradiation. Dual-cure coatings, on the other hand, combine both UV curing and thermal curing, employing a photo‑thermal dual‑curing system to meet the curing requirements of workpieces with complex geometries.
V. Conclusion
Waterborne UV coatings for the 3C industry can be classified along multiple dimensions, including visual appearance, coating structure, functional properties, and curing mechanisms. Based on visual effect, they are categorized into high-gloss clearcoats, matte clearcoats, tinted single‑coat finishes, and metallic paints; according to coating structure, they are divided into single‑coat systems and multi‑layer complementary systems; in terms of functional characteristics, they include scratch‑resistant, stain‑resistant, and soft‑touch formulations; and by curing mechanism, they are classified as either pure UV curing or dual‑cure systems. Each category possesses distinct attributes, addressing the diverse demands of 3C electronic products for varied aesthetics and performance. A thorough understanding of these classifications enables practitioners to make informed choices in practical applications, aligning with specific product positioning and performance requirements.
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.
Bossin Related Product Recommendations – 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 fullness, 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 wetting, 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-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 outstanding 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 | Excellent leveling, smooth finish, fast curing, and stain resistance. |
B-868H | Organosilicon photocurable resin | Excellent 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, wear and chemical resistance, and yellowing resistance. |
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 outstanding 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 outstanding chemical and wear resistance. |
Oil-resistant pen | ||
Product Model/English Abbreviation | Product Name/Product Type | Product Features |
B-868 | Organosilicon photocurable resin | Excellent leveling, smooth finish, fast curing, and stain resistance. |
B-868H | Organosilicon photocurable resin | Excellent 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 fullness, 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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