Our metal surface rust spray is carefully prepared from citric acid, oxalic acid, and ethylenediphosphonic acid. Designed to quickly dissolve rust on metal surfaces and restore surface gloss. The method of using is extremely convenient: shake well and spray 15 cm away from the rusty surface. Let it soak for 3-5 minutes until the rust dissolves. Rinse the residue with a soft cloth or clean water. For stubborn rust spots, repeat. And it can inhibit rust regeneration and extend the service life of the metal. The spray design provides uniform coverage, easy and efficient operation. Gentle formulations do not corrode metal substrates and protect materials.Net content: 237ml Product name: Metal surface rust removal spray Keywords: Rust removal spray Gross weight: 260g Ingredients: Citric acid, oxalic acid, hydroxyethylidene diphosphonic acid Packaging size: 5.5*5.5*20cm Product size: 5.3*19.8cm Box meter: 56*36*21.5cm Weight of one box: 26.75kg Shelf life: 3 years Storage method: Please store it in a cool and covered area