Features 1. **Advanced Anti-Corrosion Formula**: Our rust-free primer features a unique blend of citric acid and sodium gluconate, providing superior protection against rust and oxidation for metal surfaces. 2. **Long-Lasting Adhesion**: This primer forms a durable composite film that adheres effectively to metal, ensuring long-lasting protection for several months, even in challenging environments. 3. **Easy Application Process**: Simply clean the surface of dust, oil, and rust, apply the primer, and enjoy a restored luster that prevents future rusting. No complicated steps required! 4. **Versatile Use**: Perfect for a variety of applications, our primer is suitable for both automobiles and home furnishings, making it an essential product for any renovation project. 5. **Restores and Protects**: Not only does it prevent rust, but it also revitalizes the appearance of metal surfaces, ensuring they look great while being protected from corrosion. Our rust-free primer (300g) contains citric acid and sodium gluconate. It can leave a thin composite film that adheres to the metal for several months. Protect the metal surface from oxidation! Its usage method is very simple: clean the dust, oil stains and rust on the paint surface. Remove dust and oil stains from the metal surface to ensure it is dry and free of water stains. And it can restore its luster and prevent rusting again. Suitable for automobiles and home furnishings.