Direction: 1. Surface treatment: remove large rust and oxide scale particles with steel wire brush or sandpaper. Thoroughly clean the surface to remove dirt, dust and grease. 2. Usage: shake well or stir well before use. Apply two coats with a brush, roller or pump spray, and the drying time between the two coats shall be at least 20 minutes. It takes 48 hours to cure before applying high-quality paint. 3. Cleaning: the application equipment should be cleaned immediately with soap and water. 4. Overview: do not use this product if the surface temperature is lower than 50 F. Store in a cool and dry place to prevent freezing or temperatures above 100 F. In order to protect the iron surface for a long time, two layers of high-quality oil-based paint should be used to seal and cure the antirust agent coating. No other primer is required. Product specification: Material: rust remover Net content: 100g Brush size: 9.9 * 1.5cm / 3.89 * 0.59 inches The package includes: 1 * rust remover 1x Brush