Alkyd Primer & Rust Inhibitor: All-in-One for Steel Structures & Machinery. All-in-One Primer & Inhibitor: Combines alkyd primer and rust inhibitor for steel structures and machinery in one application. Eco-Friendly Formulation: Formaldehyde-free, heavy metal-free, and low VOC content compliant with strict regulations. Customizable Specifications: Offers customized luster (matte/glossy), mass solid content, and specific gravity options.