Aug 19, 2026
WB-555 Nano Ceramic Clear Coat: High-Solids Automotive Clear Coat for Fast and High-Gloss Refinishing
In professional automotive refinishing, a high-quality clear coat plays a critical role in the final appearance, durability, and efficiency of a repair job. A clear coat must provide more than gloss—it needs to deliver reliable application, fast drying, good hardness, weather resistance, and consistent performance under different workshop conditions.
Washinta WB-555 Nano Ceramic Clear Coat is a newly developed high-solids 2K PU automotive clear coat designed for professional automotive refinishing. With a high-solids formulation, excellent flow, strong gloss retention, fast low-temperature baking, and a cured hardness of up to 1H, WB-555 is designed to help body shops achieve a high-quality finish while improving repair efficiency.
For professional distributors, importers, and automotive body shops looking for a reliable high-solids automotive clear coat, WB-555 offers a combination of appearance, durability, and fast repair performance.
What Is WB-555 Nano Ceramic Clear Coat?
WB-555 Nano Ceramic Clear Coat is a professional 2K polyurethane automotive clear coat developed for use over Washinta's compatible 1K solvent-based and 1K waterborne basecoats.
Its high-solids formulation produces a full and rich film build, while its balanced drying speed allows the coating to flow smoothly without drying too quickly on the surface.
The result is a clear, high-gloss finish with good surface appearance and consistent film performance.
WB-555 is particularly suitable for professional body shops that need to balance finish quality and repair speed.
Key Benefits of WB-555 Automotive Clear Coat
1. High-Solids Formula for a Full Film Build
WB-555 features a high-solids, high-concentration formulation designed to provide a full and substantial clear film.
A high-solids clear coat can help professional painters achieve the desired film build efficiently while maintaining a smooth and attractive surface appearance.
For body shops, this means the clear coat can provide a rich finish without requiring unnecessarily complicated application procedures.
2. Excellent Flow and High Gloss
Surface appearance is one of the most important factors in automotive refinishing.
WB-555 is formulated with a balanced drying speed that provides sufficient time for the coating to flow and level.
This helps reduce the risk of:
Excessive surface dust
Rough particles
Poor leveling
Uneven appearance
After curing, WB-555 provides a clear, transparent and high-gloss finish, helping repaired panels achieve a professional appearance.
3. Long-Term Weather Resistance and Anti-Yellowing Performance
Automotive refinishing coatings are continuously exposed to sunlight, temperature changes, humidity, and other environmental conditions.
WB-555 is designed for long-term weather resistance and yellowing resistance, helping maintain the appearance of the repaired vehicle over time.
Its formulation is designed to support long-lasting:
Gloss retention + color stability + clear appearance
This makes WB-555 suitable for professional refinishing applications where long-term appearance is important.
4. Wide Application Window and Good Sag Resistance
Different repair environments can create different application challenges.
WB-555 has a wide spray application tolerance, helping painters achieve consistent results under a broader range of workshop conditions.
Its formulation provides good resistance to sagging on vertical surfaces while maintaining good flow and leveling.
In high-humidity environments, WB-555 is also designed to reduce the risk of whitening or blushing during application.
This combination gives professional painters a greater margin for application errors and helps improve overall refinishing consistency.
5. Fast Low-Temperature Baking at 70°C
One of the major advantages of WB-555 is its fast baking performance.
Under the recommended baking conditions:
70°C × 30 minutes → Polishable
This low-temperature fast-baking process allows body shops to move repaired vehicles through the refinishing process more efficiently.
After cooling, the surface can be polished directly.
For workshops operating with high repair volumes, this can help shorten the overall repair cycle and support faster vehicle delivery.
Why Fast Baking Matters in Automotive Refinishing
A faster curing process can help body shops:
Reduce vehicle turnaround time
Improve booth utilization
Increase daily repair capacity
Support same-day or fast repair jobs
Get vehicles ready for polishing sooner
For professional collision repair facilities, repair efficiency is directly connected to productivity and profitability.
6. Fast Hardness Development and 1H Final Hardness
WB-555 is designed to develop hardness quickly under normal room-temperature conditions.
After overnight curing, the hardness increases rapidly, providing good resistance to everyday wear and scratches.
After complete curing, the coating can reach a hardness of approximately:
1H
According to internal product testing, its cured hardness performance is close to that of imported 447-type clear coat products.
This combination of hardness and surface appearance makes WB-555 suitable for professional automotive refinishing applications requiring a durable clear finish.
7. Direct Baking After Normal Spraying
Another important feature of WB-555 is its compatibility with direct baking after normal spraying.
Under recommended application conditions, the coating can be heated for baking without easily developing surface defects such as pinholes or “fish-eye-like” blistering effects associated with improper application or moisture contamination.
This gives professional painters a more convenient workflow:
Spray → Flash Off → Bake → Cool → Polish
A controlled workflow can help reduce unnecessary waiting time in busy body shops.
8. Consistent Gloss After Baking
Some clear coats can experience gloss changes or noticeable shrinkage during the curing process.
WB-555 is formulated to minimize shrinkage after baking and maintain a consistent surface appearance.
After drying and curing, the clear coat is designed to maintain its high-gloss appearance.
This helps professional body shops achieve a more stable final finish from the spray booth through the polishing stage.
Recommended Application of WB-555
For professional refinishing applications, correct mixing and application are essential for achieving the best performance.
Recommended Mixing Ratio
WB-555 Clear Coat : WB-355 Standard Hardener = 100 : 50
The recommended standard hardener is:
WB-355 Standard Hardener
Always follow the latest official technical data sheet and product label before use.
Pot Life
Recommended pot life:
Approximately 80 minutes at 20–25°C
The actual pot life can vary depending on temperature, humidity, mixing conditions, and workshop environment.
For best results, prepare only the amount required for the current repair operation.
Recommended Spray Viscosity
Recommended spray viscosity:
15.5–16.5 seconds with a No. 4 viscosity cup
Proper viscosity is important for achieving the desired atomization, flow, film build, and final gloss.
Recommended Spray Application
For professional automotive refinishing, WB-555 is recommended for wet-on-wet application with approximately 2–2.5 coats.
Recommended parameters
Application: Wet spray
Recommended coats: 2–2.5 coats
Spray pressure: 1–1.5 kgf/cm²
Flash-off: Approximately 5 minutes at room temperature
Flash-off endpoint: Until the surface is no longer stringy when touched appropriately
70°C baking: 30 minutes for polishing
70°C baking: 60 minutes for sanding and rework
Air drying: Approximately 5 hours at room temperature before assembly and polishing
Actual drying and curing performance may vary depending on ambient temperature, humidity, airflow, film thickness, and equipment.
Spray Gun Setup
Recommended spray gun specifications:
Spray Gun
Nozzle Size
Gravity Feed Spray Gun
1.3–1.5 mm
HVLP Gravity Feed Spray Gun
1.3–1.5 mm
Proper spray gun setup and atomization are important for achieving uniform film build and maximum gloss.
Compatible Basecoats
WB-555 is designed for application over compatible Washinta 1K solvent-based and 1K waterborne automotive basecoats.
The clear coat should be applied over a properly prepared, dry, and compatible basecoat surface.
For complete compatibility information, professional users should refer to the latest Washinta technical documentation.
WB-555 for Fast Automotive Refinishing
Modern body shops need to balance three major requirements:
Finish Quality + Durability + Repair Speed
WB-555 is designed around these requirements.
Its combination of high solids, excellent flow, high gloss, fast baking, rapid hardness development, and good application tolerance makes it suitable for professional automotive refinishing operations.
A typical fast repair workflow can be:
Basecoat → WB-555 Application → 5-Minute Flash-Off → 70°C/30-Minute Bake → Cooling → Polishing
This workflow can help body shops reduce unnecessary waiting time and return repaired vehicles to customers faster.
Why Choose a High-Solids Automotive Clear Coat?
For professional refinishing, clear coat selection directly influences both the appearance and efficiency of a repair.
A high-quality high-solids automotive clear coat should provide:
High gloss
Good flow and leveling
Adequate film build
Reliable hardness
Scratch and wear resistance
Weather resistance
Anti-yellowing performance
Consistent curing
Good spray tolerance
Efficient polishing
WB-555 is developed to combine these requirements in one professional refinishing clear coat.
WB-555 Nano Ceramic Clear Coat: Designed for Professional Body Shops
WB-555 is not simply designed to produce a glossy surface. It is developed as a professional automotive refinishing clear coat that supports the complete repair workflow—from spraying and curing to polishing and vehicle delivery.
For body shops, the key advantages are:
High-solids film buildHigh gloss and excellent clarityGood flow and levelingAnti-yellowing and weather resistanceWide application toleranceGood vertical sag resistance70°C/30-minute fast bakingFast hardness developmentUp to 1H cured hardnessConsistent gloss after baking
These features make WB-555 a strong option for repair shops seeking a balance between professional finish quality and efficient vehicle turnaround.
Looking for a Professional Automotive Refinish Clear Coat Supplier?
Washinta is a professional automotive refinish paint manufacturer with more than 30 years of manufacturing experience, established in 1997.
Our automotive refinish product portfolio includes color toners, clearcoats, thinners, hardeners, and primers, with solutions developed for professional refinishing applications.
For distributors, importers, regional dealers, and professional body shops, Washinta provides technical product information and support for automotive refinish coating solutions.
If you are looking for a high-solids automotive clear coat, 2K PU clear coat, or nano ceramic clear coat for your market, contact Washinta to learn more about WB-555 and discuss potential distribution opportunities.
Contact Washinta today for product information, technical documentation, samples, and distributor opportunities.
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