News

Company News

Application Mind Map

Test Report

Technical Article

Industry News

Analysis of the Physical Properties of UV Wood Coatings

Release time:

2026-03-06 07:18

Analysis of the Physical Properties of UV Wood Coatings

In the modern industrial coating field, where environmental protection and efficiency are paramount, UV wood coatings have emerged as a core material for high-end wood product surface finishing thanks to their unique physical properties. These coatings, which cure rapidly upon exposure to ultraviolet light, form a dense three-dimensional network structure through cross-linking reactions among molecular chains. Their groundbreaking physical performance is redefining the technological boundaries of wood coating applications.

I. Hardness and Wear Resistance

The surface hardness of UV wood coatings is several times that of conventional coatings, and the dense coating they form effectively resists everyday wear and tear. This exceptional property stems from their unique resin system, which, during curing, forms a cross-linked network resembling ceramics, endowing the coating with outstanding scratch resistance. In solid wood flooring applications, specially treated coatings can withstand high-intensity friction without leaving noticeable marks; their abrasion resistance far exceeds that of ordinary nitrocellulose lacquers, providing long-lasting protection for wood products.

For special scenarios such as children’s furniture, the impact resistance achieved through optimized formulations can effectively cushion external impacts. This improvement does not simply involve enhancing hardness; rather, it maintains surface rigidity while simultaneously boosting flexibility, making the coating less likely to crack or peel upon impact and thus resolving the longstanding technical challenge of the high brittleness inherent in traditional UV coatings.

II. Adhesion Performance

The adhesion strength between UV wood coatings and wood substrates reaches the industry’s highest standard. Its penetration-and-anchoring mechanism enables the coating to form strong molecular bonds with the wood. In the early stages of curing, the low-viscosity prepolymers can penetrate deeply into the wood’s vessel channels, achieving durable adhesion through a dual mechanism of mechanical interlocking and chemical bonding. This unique feature ensures that the coating performs exceptionally well even on components with complex structures, effectively addressing the issue of traditional coatings easily peeling off in irregularly shaped areas.

Specially formulated for different wood characteristics, these products are suitable for a wide range of substrates—from softwoods to hardwoods. By optimizing the compatibility between resin polarity and substrate surface energy, they maintain excellent adhesion even in high-humidity environments, providing reliable surface protection for wood products.

III. Optical Properties

The optical properties of UV wood coatings can be precisely controlled through the synergistic design of the resin system and additives. The clear-coat products exhibit exceptionally high transparency, perfectly showcasing the natural grain and color of wood. Their light-scattering characteristics give the coating a soft, pleasing visual effect. By incorporating special matting agents, a full range of gloss levels—from matte to high-gloss—can be achieved, catering to the needs of various design styles.

In high-end furniture applications, special optical effects achieved through micro- and nano-structure control technology not only maintain the visually striking impact of high gloss but also eliminate the mirror-like reflection defects inherent in conventional high-gloss coatings. This breakthrough enables UV wood finishes to showcase the natural beauty of wood while imbuing products with a modern, stylish texture.

IV. Thermodynamic Properties

UV-curable coatings exhibit outstanding thermal resistance, with thermal decomposition temperatures significantly higher than those of conventional coatings, enabling them to withstand high-temperature environments without degradation. In low-temperature crack-resistance tests, the specially modified coatings remained intact, effectively preventing coating cracking caused by temperature fluctuations. This exceptional performance stems from the introduction of specific chemical bonds within the crosslinked network, which markedly enhance the thermal stability of the coating.

In terms of dimensional stability, UV wood coatings exhibit an extremely low curing shrinkage rate, effectively preventing wood deformation caused by coating shrinkage. This characteristic enhances the coating’s ability to deform in synergy with the substrate, making it particularly suitable for manufacturing wood doors, cabinets, and other products that demand high dimensional accuracy.

V. Environmental Characteristics

The curing process of UV wood coatings involves no solvent evaporation and achieves a solid content that reaches the theoretical maximum limit, fundamentally addressing the issue of organic compound emissions associated with conventional coating applications. Its VOC emissions are significantly lower than industry environmental standards, leading to a marked improvement in air quality within production workshops. This characteristic not only complies with international environmental regulations but also provides operators with a healthier working environment.

The development of water-based UV systems has further enhanced their environmental performance. The microparticles formed through a special emulsification technology exhibit outstanding stability, significantly extending the storage life of the coatings. While maintaining the traditional performance advantages of UV coatings, this system achieves truly zero-pollution application.

6. Construction Adaptability

The rheological properties of UV wood coatings are designed to accommodate a variety of application methods—from roller coating to spray application—ensuring ideal coating results in all cases. By incorporating special leveling agents, surface defects such as orange peel and pinholes can be effectively eliminated, resulting in a coating with mirror-like smoothness. This unique characteristic makes the UV process suitable not only for large-scale industrial production but also capable of meeting the demands of small-batch, customized applications.

In the LED-UV curing process, the precise matching between the light source wavelength and the photoinitiator enables the coating to achieve surface dryness in an extremely short time. This rapid curing feature not only boosts production efficiency but also reduces the rate of defective products by minimizing dust adhesion. The integrated application of smart production lines has enabled full-process automation—from coating to packaging—thus driving the wood-coating industry toward intelligent manufacturing.

VII. Conclusion

The physical property system of UV wood coatings is, at its core, a deep integration of materials science and photochemical engineering. From the construction of nanoscale cross-linking structures to the design of molecular-level penetration mechanisms, from the precise control of optical performance to the balancing of thermodynamic stability, each breakthrough in these properties is driving wood coating technology toward greater efficiency, superior quality, and enhanced environmental friendliness.

Boxing Recommended Products – UV Wood Coating
Putty primer
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-520	Polyester acrylate	Low viscosity, high gloss, excellent wettability, and cost-effective.
B-522	Polyester acrylate	Low shrinkage, excellent flexibility, strong adhesion, and high cost performance.
Sanding primer
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
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-520	Polyester acrylate	Low viscosity, high gloss, excellent wettability, and cost-effective.
B-522	Polyester acrylate	Low shrinkage, excellent flexibility, strong adhesion, and high cost performance.
Adhesion primer
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-02	Phosphate ester acrylate	Enhance adhesion to substrates such as metal, glass, and plastic.
B-05	Phosphate ester acrylate	Enhance adhesion to substrates such as metal, glass, and plastic.
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-165	Modified epoxy acrylate	Good flexibility and good adhesion
B-522	Polyester acrylate	Low shrinkage, excellent flexibility, strong adhesion, and high cost performance.
B-535	Polyester acrylate	Good adhesion, fast curing, excellent flexibility, and yellowing resistance.
B-546	Polyester acrylate	Good adhesion, fast curing, and excellent flexibility.
White primer
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-160D	Modified epoxy acrylate	Good flexibility, yellowing resistance, and excellent adhesion.
B-520	Polyester acrylate	Low viscosity, high gloss, excellent wettability, and cost-effective.
B-522	Polyester acrylate	Low shrinkage, excellent flexibility, strong adhesion, and high cost performance.
B-529	Polyester acrylate	Good adhesion, low shrinkage, and excellent resin compatibility.
B-560	Polyester acrylate	Fast curing, excellent pigment wetting.
Gloss finish paint
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-163	Modified epoxy acrylate	Good flexibility, excellent pigment wetting, and strong adhesion.
B-165	Modified epoxy acrylate	Good flexibility and good adhesion
B-21C	Active amine photosensitizer	Low color number, antioxidant and polymerization inhibitor resistance, enhanced curing rate
B-301	Aromatic polyurethane acrylate	Fast curing, good toughness, and excellent sandability.
B-302	Aromatic polyurethane acrylate	Fast curing, high strength, good toughness, and easy to sand.
B-574C	Polyester acrylate	Low viscosity, low odor, good wettability, suitable for LED UV.
B-601	Aromatic polyurethane acrylate	High hardness, scratch-resistant, chemical-resistant, and cost-effective.
B-609	Aliphatic polyurethane acrylate	Fast curing, high hardness, scratch-resistant, chemical-resistant
B-868	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
B-868H	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
B-910A2	Aliphatic polyurethane acrylate	Low viscosity, yellowing resistance, chemical resistance, and steel wool resistance.
B-912	Aliphatic polyurethane acrylate	Fast curing, high hardness, good toughness, and chemical and wear resistance.
Matte finish paint
Product Model/English Abbreviation	Product Name/Product Type	Product Features
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-21C	Active amine photosensitizer	Low color number, antioxidant and polymerization inhibitor resistance, enhanced curing rate
B-328M	Aliphatic polyurethane acrylate	Low gloss, low viscosity, good wettability, and pleasant to the touch.
B-328R	Aliphatic polyurethane acrylate	Low gloss, excellent matting effect, good wetting properties, and a fine, smooth hand feel.
B-333	Aliphatic polyurethane acrylate	Low viscosity, good matting effect, excellent wettability, and good flexibility.
B-572	Polyester acrylate	Low viscosity, low odor, good wettability, suitable for LED UV.
B-650A	Aliphatic polyurethane acrylate	Low viscosity, good matting effect, fast curing, and excellent wettability.
B-868	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
B-868H	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
B-910A2	Aliphatic polyurethane acrylate	Low viscosity, yellowing resistance, chemical resistance, and steel wool resistance.
B-912	Aliphatic polyurethane acrylate	Fast curing, high hardness, good toughness, and chemical and wear resistance.
Bright white paint
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-160D	Modified epoxy acrylate	Good flexibility, yellowing resistance, and excellent adhesion.
B-301	Aromatic polyurethane acrylate	Fast curing, good toughness, and excellent sandability.
B-302	Aromatic polyurethane acrylate	Fast curing, high strength, good toughness, and easy to sand.
B-560	Polyester acrylate	Fast curing, excellent pigment wetting.
B-574C	Polyester acrylate	Low viscosity, low odor, good wettability, suitable for LED UV.
B-601	Aromatic polyurethane acrylate	High hardness, scratch-resistant, chemical-resistant, and cost-effective.
B-868	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
B-868H	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
B-912	Aliphatic polyurethane acrylate	Fast curing, high hardness, good toughness, and chemical and wear resistance.
Adherent
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-05	Phosphate ester acrylate	Enhance adhesion to substrates such as metal, glass, and plastic.
B-509B	Polyester acrylate	Good adhesion, good flexibility, and excellent pigment wetting.
B-531	Polyester acrylate	Good adhesion, impact resistance, excellent flexibility, and resistance to yellowing.
B-535	Polyester acrylate	Good adhesion, fast curing, excellent flexibility, and yellowing resistance.
B-546	Polyester acrylate	Good adhesion, fast curing, and excellent flexibility.
B-590	Polyester acrylate	Good adhesion, fast curing, and excellent pigment wetting.
Fill-type
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-520	Polyester acrylate	Low viscosity, high gloss, excellent wettability, and cost-effective.
B-522	Polyester acrylate	Low shrinkage, excellent flexibility, strong adhesion, and high cost performance.
B-529	Polyester acrylate	Good adhesion, low shrinkage, and excellent resin compatibility.
Retouching
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-560	Polyester acrylate	Fast curing, excellent pigment wetting.
Hardened
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-301	Aromatic polyurethane acrylate	Fast curing, good toughness, and excellent sandability.
B-302	Aromatic polyurethane acrylate	Fast curing, high strength, good toughness, and easy to sand.
B-560	Polyester acrylate	Fast curing, excellent pigment wetting.
B-574C	Polyester acrylate	Low viscosity, low odor, good wettability, suitable for LED UV.
B-601	Aromatic polyurethane acrylate	High hardness, scratch-resistant, chemical-resistant, and cost-effective.
B-912	Aliphatic polyurethane acrylate	Fast curing, high hardness, good toughness, and chemical and wear resistance.
Matte
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-328M	Aliphatic polyurethane acrylate	Low gloss, low viscosity, good wettability, and pleasant to the touch.
B-328R	Aliphatic polyurethane acrylate	Low gloss, excellent matting effect, good wetting properties, and a fine, smooth hand feel.
B-329D	Aliphatic polyurethane acrylate	Low irritation, low viscosity, excellent wettability, and pleasant hand feel.
B-333	Aliphatic polyurethane acrylate	Low viscosity, good matting effect, excellent wettability, and good flexibility.
B-650A	Aliphatic polyurethane acrylate	Low viscosity, good matting effect, fast curing, and excellent wettability.
Solid-color paint
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-519	Self-curing polyester acrylate	Self-initiated photopolymerization performance
B-530	Polyester acrylate	Low viscosity, excellent hydrophobicity, thixotropy, and improved ink misting.
B-560	Polyester acrylate	Fast curing, excellent pigment wetting.
Yellowing resistance
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-160D	Modified epoxy acrylate	Good flexibility, yellowing resistance, and excellent adhesion.
B-431	Alicyclic Specialty Acrylates	Yellowing resistance, good wettability, low viscosity, fast curing
Coating by spraying
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-160D	Modified epoxy acrylate	Good flexibility, yellowing resistance, and excellent adhesion.
Roll coating
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-100	Bisphenol A epoxy acrylate	High hardness, high gloss, chemical resistance, and high fullness.
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
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 good adhesion
B-520	Polyester acrylate	Low viscosity, high gloss, excellent wettability, and cost-effective.
B-522	Polyester acrylate	Low shrinkage, excellent flexibility, strong adhesion, and high cost performance.
Solvent-free spraying
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-251	Aromatic polyurethane acrylate	Fast curing, excellent flexibility, and good wetting performance on black ink pigments.
B-520	Polyester acrylate	Low viscosity, high gloss, excellent wettability, and cost-effective.
B-574C	Polyester acrylate	Low viscosity, low odor, good wettability, suitable for LED UV.
LED-UV
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-21C	Active amine photosensitizer	Low color number, antioxidant and polymerization inhibitor resistance, enhanced curing rate
B-241	Aliphatic polyurethane acrylate	Fast drying, excellent skin feel, and resistant to yellowing.
B-27	Active amine photosensitizer	Low color number, benzene-free, low odor, antioxidant and polymerization inhibitor.
B-570	Polyester acrylate	Low viscosity, benzene-free, low odor, suitable for LED UV.
B-574	Polyester acrylate	Benzene-free, low odor, and VOCs meet cigarette packaging standards.
B-574C	Polyester acrylate	Low viscosity, low odor, good wettability, suitable for LED UV.
Excimer lamp
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-241	Aliphatic polyurethane acrylate	Fast drying, excellent skin feel, and resistant to yellowing.
Skin feel
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA
B-165	Modified epoxy acrylate	Good flexibility and good adhesion
B-241	Aliphatic polyurethane acrylate	Fast drying, excellent skin feel, and resistant to yellowing.
B-328M	Aliphatic polyurethane acrylate	Low gloss, low viscosity, good wettability, and pleasant to the touch.
B-328R	Aliphatic polyurethane acrylate	Low gloss, excellent matting effect, good wetting properties, and a fine, smooth hand feel.
B-574C	Polyester acrylate	Low viscosity, low odor, good wettability, suitable for LED UV.
B-868	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
B-868H	Silicone-based UV-curable resin	Good leveling, smooth finish, fast curing, and stain-resistant.
Monomer Recommendation
Product Model/English Abbreviation	Product Name/Product Type	Product Features
BM2223/TPGDA	Di(propylene glycol) diacrylate	Good flexibility, low volatility
BM2224/EO-HDDA	Ethoxylated-1,6-hexanediol diacrylate	Good adhesion to plastics, excellent dilutability, 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 cross-linking density, high hardness, and chemical resistance.
BM3380/3EO-TMPTA	Ethoxylated trimethylolpropane triacrylate	More flexible and less irritating than TMPTA.
BM6261/DPHA-80	Dipentaerythritol hexaacrylate	High crosslink density, high hardness, chemical and abrasion resistance, and water resistance.
BM6263/DPHA-90	Dipentaerythritol hexaacrylate	High crosslink density, high hardness, chemical and abrasion resistance, and water resistance.

Disclaimer: The above content is sourced from the internet and is for reference only. If any infringement occurs, please contact us, and we will remove it promptly.

Share to:

Analysis of the Chemical Properties of UV Wood Coatings

Development of UV Wood Coatings