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The RUST-OLEUM 904402 is a direct-to-metal (DTM) alkyd enamel coating formulated for industrial and commercial metal surfaces. This high-gloss, gray enamel delivers corrosion-resistant protection in a single coat, drying tack-free in 2 to 4 hours. The 450 VOC formula bonds directly to properly prepared metal without a primer step, though pairing it with a compatible 7400 System primer maximizes performance. It is designed for professional applicators working in moderate to slightly severe industrial environments where long-term rust prevention and chemical resistance are required.
This 1-gallon container of 904402 is suited for structural steel, equipment housings, fabricated metal assemblies, and similar bare or primed metal substrates in industrial, commercial, and manufacturing settings. The formula meets USDA requirements for incidental food contact and is accepted for use in federally registered Canadian food facilities, making it appropriate for food-processing plant maintenance applications. Finish resists chipping, fading, and weathering under normal service conditions.
Designed for use over bare metal or primed surfaces. Recommended primers include the 7400 System Heavy Duty Rust Inhibitive Primer, 7400 System Fast Recoat Primer, and 7400 System Red Damp Proof Primer.
Surface preparation is critical — remove all rust, mill scale, grease, and loose paint before applying. Industrial painters and maintenance professionals should consult local VOC regulations before use, as 450 VOC products may be restricted in some air quality management districts. Apply only within recommended temperature and humidity ranges listed on the product label. Keep away from heat sources and ensure adequate ventilation during application and drying.
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