A structured FAQ and substrate selection table for anti-fouling paint, providing clear guidance on choosing the right coating for concrete, metal, wood, PVC, and stone in architectural and industrial applications.

1. What makes anti-fouling paint different from regular exterior paint?
Anti-fouling paint features hydrophobic and oleophobic technology, plus a dense coating film that prevents dirt, dust, and oil from adhering. Regular exterior paint cannot provide long-term stain resistance.
2. Which substrates can use anti-fouling coating?
It works on concrete, metal, wood, PVC, stone, and more. Different substrates need different primers—for example, metal requires an epoxy primer for improved adhesion.
3. Is “self-cleaning” the same as “anti-fouling”?
No. Self-cleaning uses rainwater to wash off dirt automatically, while anti-fouling prevents dirt from sticking in the first place. High-end coatings often combine both.
4. Can anti-fouling paint be used indoors?
Yes. Kitchens, hallways, children’s rooms, and bathrooms benefit from scrub-resistant and antibacterial water-based coatings.
5. Are anti-fouling coatings environmentally friendly?
Water-based versions are low-VOC, free of formaldehyde and heavy metals, and safe for use in hospitals, schools, and food facilities.
6. How long does anti-fouling paint last?
Exterior surfaces: 8–15 years
Interior surfaces: 10–20 years
Depends on environment and application quality.
7. What should be considered during application?
Ensure dry substrate, solid base, correct primer system, application temperature 5–35°C, and avoid rainy or humid conditions.

📌 English Table: Recommended Anti-Fouling Coatings for Common Substrates
| Substrate Type | Recommended Coating System | Key Features | Typical Applications |
|---|---|---|---|
| Concrete / Masonry | Silicone-acrylic or fluorocarbon exterior paint | High weather resistance, self-cleaning, anti-alkali, strong stain resistance | Residential walls, commercial buildings, public facilities |
| Metal | Epoxy primer + fluorocarbon topcoat | Anti-corrosion, oil resistance, chemical stability, long-lasting anti-fouling | Industrial equipment, steel structures, factories |
| Wood | Water-based acrylic stain-resistant coating | Maintains grain, high scrub resistance, waterproof | Furniture, indoor woodwork, doors |
| PVC / Plastic | Modified acrylic anti-fouling paint | High adhesion, flexible, stable stain resistance | Pipes, plastic covers, outdoor decorative parts |
| Stone | Fluorocarbon transparent protective coating | Anti-yellowing, hydrophobic & oleophobic, keeps natural color | Stone facades, landscape stone |

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