This is a SEM38131 Rust Shield I.H. Red Gallon, controls rust & corrosion on ferrous metals, applied properly. Rust-Shield isolates rust & forms a permanent, protective coating. Features: Excellent corrosion protection, outstanding coverage & adhesion. Resists runs, sags & drips. Tough long-lasting finish. Intermix for custom colors. Use with or without Rust-Shield primer.