Rust be gone! 🦾 Your metal's best friend awaits. Works best above 70°F for quick results. Part of the unbeatable 3-step rust prevention system. Water-based formula ensures safety without harmful residues. Ideal for cars, fences, and outdoor furniture. Achieve superior adhesion with a zinc phosphate coating. Water-based 32 Fl Oz Non-flammable POR-15 Metal Prep is a 32 fluid ounce, non-flammable, water-based rust neutralizer designed to etch metal surfaces for optimal paint adhesion. Its unique formula leaves a zinc phosphate coating, ensuring superior bonding and corrosion resistance, making it perfect for various applications from automotive to outdoor furniture.