Features: 1. **Rust Protection**: Our Rust-Free Primer effectively prevents oxidation on metal surfaces, ensuring long-lasting protection against rust and corrosion for your radiators and home furnishings. 2. **Easy Application**: Designed for hassle-free use, simply clean the surface of dust, oil, and rust, apply the primer, and enjoy a smooth finish that restores the metal's luster. 3. **Durable Formula**: Contains citric acid and sodium gluconate, forming a thin composite film that adheres strongly to metal, providing protection that lasts for several months. 4. **Versatile Use**: Perfect for both automotive applications and home decor, this primer is suitable for a variety of metal surfaces, making it a must-have for DIY enthusiasts. 5. **Compact Size**: The 100g packaging is convenient for small projects and easy to store, ensuring you have the right amount of primer on hand whenever you need it. Our rust-free primer (100g) 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.