172nm & 254nm Excimer UV Coating: Introduction & Coating Methods
Product Introduction
1. 172nm Excimer UV Paint
172nm paint, which utilizes an excimer-based ultraviolet (UV) light (called vacuum UV - short wave), is part of one of the short-wave vacuum UV curing systems. This special sort of excimer coating uses the 172nm vacuum UV emitted from Xe2 excimer lamps and is a surface modifying and curing process at a nanoscale. The high photon energy breaks the molecular chains of the resin, and the surface of the film forms a nano micro-wrinkle structure which provides a really super matte UV coating without the need for matting agent powder traditionally used for matte effect. The surface layer is cured at a nanometer scale, while the inside layer finishes the deep cross-linking with long-wave UV/LED. Finally, there is a good level of hardness, fingerprint-proof, color-proof, and free from the orange peel effect with a perfectly matte result — this is the top excimer UV-coating product, suitable for top-quality furniture, wooden substrates, 3C electronics, automobiles, etc.
2. 254nm Excimer UV Paint
254nm excimer UV paint is a medium wavelength UVC curing system that is only capable of being activated by ultraviolet A (UV-A) with a wavelength of 320~380nm coming from low-pressure mercury lamps or 254nm excimer lamps. Owing to its remarkable penetration power of the photons, it will cure the coating film from the top to the bottom layer. Whereas 172nm system relies on physical nano-wrinkle formation to attain matte finishes, 254nm system uses fillers and matting agents. One of the unique features of the excimer UV coating is that it hardly demands any capital equipment investment, and therefore no nitrogen protection, allows a relatively broad construction tolerance, and is economically efficient - altogether, these attributes make it the go-to variant for producing simple matte finishes on mid-range panel furniture, ordinary wooden material products, and plastic parts.
Besides that, the coating serves surface sterilization and photo-aging applications.
Product Advantages
Structural and Design Advantages
The product architecture is based on an advanced excimer light source integration optimized for both 172nm and 254nm ultraviolet curing wavelengths, enabling operational flexibility depending on substrate compatibility and finish requirements. As an excimer uv coating manufacturer, the solution’s modular adaptation supports seamless incorporation into existing curing systems with minimal capital expenditure, providing scalability for growing production lines. The nano-engineered surface texture formed by the 172nm variant elevates surface hardness and imparts an ultra matte uv coating effect without additional matting powders, simplifying processing steps. Simultaneously, the 254nm formulation includes fillers and matting agents calibrated to produce consistent finishes, offering a tailored approach suitable for different furniture grades and plastic materials. The system’s solvent-free chemistry and low acid values further underscore its environmentally responsible design.
Performance, Usability, and Value to Manufacturers
Terrestrial performance assessments highlight superior abrasion and scratch resistance afforded by this excimer uv coating, with hardness levels that substantially extend surface longevity under heavy use. Its anti fingerprint uv coating for furniture property reduces visual degradation, enabling easier maintenance in commercial settings and lowering lifecycle costs. Moreover, the fast curing profile, combined with stable inorganic and organic compound structures, streamlines process timing—unlocking production efficiency gains critical to industrial throughput models. The coating’s compatibility with conventional coating weights and viscosity ranges facilitates user-friendly application techniques including spraying and rolling, minimizing operator training time. By choosing this excimer uv coating manufacturer’s product, manufacturers benefit from operational repeatability and sustained finish quality, delivering measurable ROI enhancements while complying with evolving environmental regulations.
Application Scope of 172nm excimer
High-end whole house customization: cabinets, wardrobes, wooden doors, wall panels, table tops
Decorative boards: MDF, multi-layer solid wood board, PET board, acrylic board
Flooring materials: SPC floor, WPC wood-plastic floor, laminate floor
3C home appliances: laptop shell, TV panel, refrigerator and washing machine panel
Automotive interior: central control panel, instrument panel, automotive door interior parts
High-end bathroom, light luxury woodwork, paint-free ultra-matte soft-touch integrated products
Application Scope of 254nm excimer
Low and medium-grade panel furniture, ordinary interior wooden doors, decorative lines, skirting lines
Stair handrails, solid wood components, ordinary bamboo and wood crafts coating
Plastic shells, daily plastic products, ordinary toy matte coating
Auxiliary sterilization coating on the surface of food packaging and medical devices
Weathering aging test of materials and supporting coating for UV photolysis experiment
Product Performance Characteristics
172nm Excimer UV
Physical spontaneous matting: no matting powder, surface nano wrinkle matting, 60° gloss 0~5°, uniform matte without blooming;
Ultra-soft touch: silky delicate hand feeling, fingerprint resistance, sweat resistance, anti-sticking, slight scratch self-repairing effect;
Super high physical performance: pencil hardness up to 3H~4H, wear and scratch resistance, impact resistance;
Weathering and yellowing resistance: excellent UV aging resistance, not easy to yellow and lose gloss in long-term use;
Chemical resistance: resistant to alcohol, coffee, tea and oil stain, easy daily cleaning
Environmentally friendly solvent-free: 100% solid content, zero VOC, fast curing speed and high production efficiency;
Paint film texture: no orange peel, no bubbles, excellent leveling, full and transparent paint film.
254nm Excimer UV
Chemical filler matting: gloss adjusted by matting powder, conventional 60° gloss 10~30°
Ordinary smooth hand feeling: no special soft touch, hard surface, easy to leave fingerprints, no self-repairing performance
Medium mechanical properties: pencil hardness 2H~3H, general wear and scratch resistance, easy to produce deep scratches under heavy load
General yellowing resistance: easy to yellow and lose gloss under long-term light, weather resistance is weaker than 172nm system
Basic stain resistance: resistant to daily mild stains, not resistant to strong solvents and strong acid and alkali corrosion
Economical and easy construction: high solid content, low VOC, no nitrogen protection required, low equipment investment and low production cost
General storage stability: matting fillers are easy to settle after long-term standing, fully stir before use
Physical Parameters
172nm Excimer UV
| Parameter |
Specification |
| Appearance |
Colorless to light yellow transparent liquid |
| （25℃） Viscosity |
300~800 CPS |
| （25℃） Density |
1.05±0.05 g/cm³ |
| Solid Content |
100% |
| Acid Value |
≤5 mg KOH/g |
| Functionality |
3~6 |
| Curing Wavelength |
172nm（Xe₂ excimer lamp） |
| Photon Energy |
7.23eV |
| Penetration Depth |
100~500 nm |
| Pencil Hardness |
3H~4H |
| 60°Gloss |
0~5° |
| Excimer Energy |
150~200 mJ/cm² |
| LED Curing Energy |
450~550 mJ/cm² |
| Coating Weight |
35~45 g/㎡ |
254nm Excimer UV
| Parameter |
Specification |
| Appearance |
Light yellow transparent liquid |
| （25℃） Viscosity |
200~600 CPS |
| （25℃） Density |
1.03±0.05 g/cm³ |
| Solid Content |
95%±2% |
| Acid Value |
≤5 mg KOH/g |
| Functionality |
2~3 |
| Curing Wavelength |
254nm（Low-pressure mercury lamp / excimer light source） |
| Photon Energy |
4.89eV |
| Penetration Depth |
1~5 μm Micron-level overall penetration |
| Pencil Hardness |
2H~3H |
| 60° Gloss |
10~30° |
| Curing Energy |
300~400 mJ/cm² |
| Coating Weight |
40~50 g/㎡ |
Application Equipment & Process
I.172nm Excimer UV Coating Process
1.Core Equipment
Forward and Inverted roll coater, 172nm Xe₂ excimer lamp unit, nitrogen protection curing box, 395nm LED UV deep curing machine, board sander (400#~600# sandpaper), automatic dust remover, constant temperature conveying line, nitrogen generator unit.
2. Construction Conditions
Nitrogen oxygen-free environment is required, oxygen content in the box is controlled below 300ppm; ambient temperature 18~28℃, humidity 50%~70%; workpiece conveying line speed 8~10m/min.
3. Process Steps of 172nm excimer UV Coating
Substrate Pretreatment
Remove dust and oil stains from the board, control substrate moisture content 8%~12%; finely sand with 400# sandpaper, thoroughly remove dust without residue.
UV Roller Coating Primer
Single roll coating UV adhesion primer, coating weight 8~12g/㎡; LED semi-curing to form a good adhesion base layer.
Intermediate Coating & Curing
Forward and Inverted roll coating transparent UV intermediate coat, coating weight 35~45g/㎡; fully cured by LED, the paint film is full to seal substrate pores.
Sanding & Secondary Dust Removal
Sand and level with 400#→600# sandpaper in turn, remove particles and burrs, strong dust removal on the whole line.
172nm Excimer Topcoat Coating
Evenly coat 172nm excimer topcoat by forward and Inverted roll, standard coating weight 35~45g/㎡; immediately enter the nitrogen protection box, 172nm excimer lamp irradiation forms surface nano micro-wrinkles to achieve ultra-matte soft touch; then fully cross-link and cure by LED long wave deep layer.
Final Inspection
Test gloss, soft touch, hardness and adhesion, no sagging and bubbles, warehousing and offline after qualified.
II. 254nm Excimer UV Coating Process
1. Core Equipment
Ordinary single/double roll coater, 254nm low-pressure mercury lamp UV curing machine, simple fume hood, sander, dust removal conveying line; no nitrogen generator and nitrogen protection required.
2. Construction Conditions
Construction can be carried out in normal temperature aerobic environment; temperature 18~30℃, humidity 50%~75%; conveying line speed 10~12m/min.
3. Process Steps
Substrate Pretreatment
Clean oil and dust, sand with 400# sandpaper, control substrate moisture content 8%~12%.
Primer Coating & Curing
Roll coat UV primer and cure to ensure topcoat adhesion.
254nm Topcoat Coating
Evenly coat 254nm excimer UV topcoat by single roll, coating weight 40~50g/㎡; directly pass through 254nm mercury lamp UVC curing, one-time full curing in aerobic environment.
Inspection & Packaging
Check paint film flatness, matte uniformity and hardness, packaging and warehousing without defects.
Coating Weight Standard
172nm Excimer UV
Standard roll coating weight : 35~45 g/㎡
Below 30g/㎡ : poor soft touch, high gloss and uneven matte;
Above 50g/㎡ : too thick paint film easy to wrinkle, incomplete internal curing and easy sagging.
254nm Excimer UV
Standard roll coating weight : 40~50 g/㎡
Below 35g/㎡ : insufficient covering power, matte blooming and decreased weather resistance;
Above 55g/㎡ : paint film accumulation, reduced hardness and slower drying.
FAQ
What types of substrates are compatible with your excimer UV coating?
Our excimer uv coating manufacturer formulas are optimized for various substrates including high-end wooden furniture, plastics, MDF panels, and automotive interiors. The dual-wavelength technology allows us to tailor coatings for different materials, ensuring superior hardness and anti-fingerprint performance across applications.
Can you customize the finish and curing process for large-scale production?
Yes, we provide tailored solutions using both 172nm and 254nm curing systems to fit your production needs. Our coatings deliver fast, solvent-free curing compatible with advanced machinery, enabling efficient scalability without compromising the ultra matte or fingerprint-resistant finish.
How should I maintain surfaces treated with your anti fingerprint uv coating for furniture?
Surfaces coated with our anti fingerprint uv coating for furniture are designed for ease of cleaning and durability. We recommend routine dusting and gentle wiping with a soft cloth. The coating’s superior abrasion and stain resistance minimize maintenance while preserving surface integrity over long-term use.
Do you offer technical support for integrating your ultra matte uv coating into existing lines?
We provide comprehensive technical assistance to integrate our ultra matte uv coating into your production systems. Our experts guide you through equipment compatibility, curing parameters, and quality control measures to ensure consistent matte finishes and operational efficiency. Contact us for detailed support. 
