Reconstruction of existing corrosion: The chassis rust converter uses black protective polymer barrier to transform and replace the existing rust. Protect iron and metal surfaces: It can repair and protect the iron and metal surfaces of cars, garbage cans, equipment, railings, etc. Prevent future corrosion: This anti rust treatment prevents future corrosion by preventing moisture in rain and snow. Dry after 20 minutes. Non toxic smokeless formula: It is a non flammable, low VOC water-based treatment agent. It is non-toxic and does not emit harmful smoke. 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