Antibacterial Color Coated Steel is a functional color-coated steel with the ability to actively inhibit or kill bacteria and mold. Wanzhi Group provides color-coated antibacterial metal materials that meet standards such as QB/T 4341 (antibacterial properties), ISO 22196 (antibacterial), JIS Z 2801 (antibacterial), and ASTM G21 (anti-mildew) for high-end manufacturing and public facilities in the medical, food, home appliance, and public utilities industries.

Antibacterial Color Coated Steel – Process
Antibacterial color coated steel achieves its antibacterial function by adding highly effective and long-lasting antibacterial agents to the coating or topcoat.
Silver Ion Antibacterial
- Compounds containing silver ions (such as nano-silver, silver-loaded zirconium phosphate, etc.) are added to the coating of color-coated steel or pre-painted steel. Silver ions are effective against a variety of bacteria and molds, with stable and long-lasting antibacterial effects. Importantly, it is safe for human use, making it the most mainstream technology.
Photocatalytic Antibacterial Properties (e.g., Nano TiO₂)
- Nano TiO₂ antibacterial coating steel is produced by adding nano-antibacterial agents to coatings (polyester (PE), fluorocarbon (PVDF), silicon-modified polyester (SMP), or high-weather-resistant polyester (HDP), etc.). Nano-titanium dioxide not only decomposes bacteria and viruses but also possesses self-cleaning and organic pollutant decomposition functions.
Organic Antibacterial Agents
- These agents achieve antibacterial effects by disrupting bacterial cell membranes using organic compounds such as quaternary ammonium salts. However, due to their limited durability and volatility, organic antibacterial agents are not suitable for use in architectural color-coated steel sheets and are often used in short-term or disposable products.
Composite Antibacterial Properties
- In addition to the above antibacterial technologies, multiple antibacterial agents (such as silver ions and photocatalytic materials) can be combined and added to the base coating to achieve synergistic, broader-spectrum, and longer-lasting antibacterial effects. Composite antibacterial steel is also one of our popular products.
Antibacterial Color Coated Steel – Specification
| Item | Details |
| Base Plate Material | SPCC/SPCD/SPCE/DC01 – DC07/Q195, Q215, Q235 |
| Base Plate Coating | Pure zinc, Zinc-aluminum-magnesium, Aluminum-zinc, Aluminum-magnesium-manganese, etc. |
| Paint Material | PE/SMP/PVDF/HDP/PU/PVC with antibacterial agent |
| Paint Structure | 2/1, 2/2, 2/0, 3/2, 3/3 |
| Paint Color | RAL Color Card |
| Paint Film Thickness | Topcoat: 10 – 40 microns, Backcoat: 5 – 20 microns |
| Thickness | 0.12 – 1.5mm (Common: 0.12/0.14/0.16/0.18) |
| Width | 600 – 1250mm (Common: 1000/1200) |
| Special Surface | Special printing/3D embossing/film covering |
| Weight | Specified by customer |
| Inner Diameter | 508/610 millimeters |
| MOQ | One roll |
| Annual Production Capacity | 240,000 tons/year |
| Standards | JIS G3322 CGLCC, ASTM A755 CS-B |
Advantages and Applications
Antibacterial color coated steel combines the corrosion resistance, decorative properties, and durability of ordinary color-coated steel with the antibacterial and self-cleaning advantages of antibacterial agents, making it the preferred material for high-end manufacturing and fields with high hygiene standards.
Antibacterial Color Coated Steel – Advantages
- Durable Antibacterial Properties: It can continuously reduce the number of bacteria and mold on the steel sheet surface for 24 hours, reducing the risk of cross-infection. The antibacterial effect can last for more than 10 years.
- Odor and Mold Inhibition: Antibacterial color coating effectively prevents odors and unsightly mold caused by microbial growth, maintaining a fresh and clean environment.
- Easy Cleaning and Self-Maintenance: The smooth surface of the antibacterial coating reduces dust adsorption, especially the nano-antibacterial coating, which has excellent self-cleaning properties.
- Corrosion Resistance: The double protection of the galvanized base material and the colored antibacterial coating enhances corrosion resistance.
- VHP Resistance: The coating showed no blistering or discoloration after a 100-hour VHP exposure test.
- Enhancing Product Value: It gives ordinary steel plates a “healthy” and “hygienic” selling point, meeting the market’s growing demand for healthy materials.
Antibacterial Color Coated Steel – Applications
- Hospitals: Operating rooms, wards, laboratories, pharmacies, corridor wall panels and ceilings
- Residential: Living rooms, public restrooms, changing rooms, schools, kindergartens, etc.
- Cleanrooms: Cold storage, laboratories, and electronic cleanroom walls and ceilings, roofs, ventilation ducts
- Equipment: Medical device housings, medical and food work surfaces.
- Food and Pharmaceuticals: Production workshops, food processing and packaging equipment
- Home Appliances and Furniture: Refrigerator, microwave oven, range hood panels
- Interior Decoration: Walls, cabinets
- Public Facilities: Station platform decorative panels, train interiors
- Signage Systems: Company logos, wayfinding signs.
Antibacterial Color Coated Steel – Factory
Wanzhi Group is an ISO-certified color coating factory. Our color-coated steel product series covers mid-to-high-end fields, including ordinary coated color-coated steel, special surface color-coated steel, functional coated color-coated steel, and coated color-coated steel for home appliances, etc. We have galvanizing, color coating, coating, and additional processing production lines with an annual output of 600,000 tons. We can provide OEM and ODM services according to application needs, provide free samples, and support third-party quality inspections such as SGS, BV, and TUV.
Case
Wanzhi Steel – Agricultural Greenhouse Project in Turkmenistan
550 tons PPGI Steel Coil to Azerbaijan
100 tons of Galvanized Coils to Saudi Arabia
144 ton Steel Wire to Spanish
Project of PPGI Roofing en Libya
100 tons of GL and PPGL in Solomon Islands
Customer Feedback
Antibacterial Color Coated Price
The price of antibacterial color coated steel is between USD 700 and 900 per ton. Like other color-coated steel, the price of antibacterial panels is affected by various factors such as thickness, width, and paint film, and is not fixed. Leave a message telling us the product specifications or intended use to get a free quote!










