Evapo-Rust is an amazing rust eliminator! A product of extensive research, Evapo-Rust rust remover is an environmentally-safe water-based product that removes rust in minutes, without scrubbing.It's so easy to use with no mixing required, anyone can restore their rusted tools or parts.Removes even heavy rust completelyNon-toxic, non-corrosive, safe on skin and environmentally friendlyNo fumes or bad odours, non-flammable, no VOC'sBiodegradable, water solubleRequires no special equipmentWill not harm un-rusted steel, safe on other metalsWill not affect plastic, PVC, Viton and most paintsRust removal in 4 easy steps -Step 1: Pre-clean the item to remove oil and dirt. In a container, pour a sufficient amount of Evapo-Rust to completely cover the rusted object.Step 2: Rinse item and immerse the rusty object in the solution and leave it for 1-12 hours depending on the depth and age of rust - You can leave it overnight for extremely heavy rust.Step 3: When finished, rinse item with water. If deep rust remains in pits, re-immerse item until all the rust is gone. Un-rusted metal will not be affected. NOTE: This stage is VERY important in getting the best resultsStep 4: To prevent flash rusting, dip the item back into solution. Then allow item to air dry. This will prevent rust for up to two weeks.Evapo-Rust is also re-usable which makes it incredible value for money. Once you have de-rusted your parts simply filter the solution into a seal-able container and its ready to use again next time, and the time after that...!