Rust Prevention Magic is the perfect solution for keeping your raw metal parts looking brand new for years to come. This revolutionary chemical is ideal for protecting cast iron, stamped steel, and aluminum components which are used on all vehicles; specifically in the areas of suspension and drivetrain. The proprietary blend of ingredients leaves no oily residue and is dry to the touch once applied. No specialty tools are required for application, however a hair dryer or heat gun are ideal for getting RPM to flow on porous parts. Touch-ups are not required unless an item is subject to abrasion or impact. Each 8-ounce jar ships complete with an application brush for your convenience.