The Moeller Marine Green Zinc Phosphate Primer (25802-1) is a heavy-duty aerosol coating specifically engineered for the harsh demands of marine environments. Boasting a high 95% zinc content, it provides exceptional sacrificial protection against corrosion on aluminum, steel, and iron surfaces, making it particularly effective for outboards, stern drives, and welded joints both above and below the waterline. This primer is designed to create a uniform, bondable surface that improves the adhesion of subsequent color coats and is resilient enough to be left as a standalone finish or top-coated with epoxies. By replacing older part numbers like 05472 and 25802, this formula remains a go-to choice for boaters looking to defend their hardware against the aggressive solvents and abrasions found at sea.