How to Stop Rust

Rust on any object — whether it’s a car, power tool, or a bridge — is an unattractive and often dangerous phenomenon that should be prevented whenever possible. Typically, rust occurs when metal is exposed to water and oxygen for a prolonged period of time. Iron and oxygen combine to form iron oxide, whose properties create the flaky orange-yellow coating that we all know as rust. The initial corrosion is fairly easy to remove, but wait too long, and you’ll have a car destined for the junkyard. Below, we’ve outlined five approaches to defeating rust before it spreads.

  1. Bluing: By dipping metal objects into a solution of water, sodium hydroxide, and potassium nitrate, you give them a strong corrosion resistance. This technique is often used with guns and clocks, and the name refers to the metal’s bluish finish when immersed in the solution.
  1. Clean Your Car Regularly: It may go without saying, but washing and waxing your car is extremely important for rust prevention. Dirt can also accumulate underneath your car over time, retaining moisture, so it’s smart to spray the undercarriage often as well. Although new cars are coated with the latest chemicals to fight against rust, vintage vehicles require an attentive eye to ensure that they remain drivable.
  1. Invest in Rust Prevention Products: These over-the-counter chemicals can be found in a variety of application styles — from aerosol sprays to cloth wipes. It all depends on the object you’re trying to protect. For small tools and outdoor gear, we recommend the Sentry Solutions TUF-CLOTH. For vehicles and larger metal parts, the Boeshield T-9 aerosol can was originally designed by Boeing Aviation for their aircraft components, so it does the job.
  1. Install a Dehumidifier: By controlling the exact amount of moisture in the air, you can slow down the oxidation process in your garage, basement, or any other sealed work space. If you own or work with valuable metal objects, it’s definitely worth the small initial investment.

5. Scrape Off Rust Immediately: Rust spreads like an infection, so it’s important to deal with oxidation as soon as it appears. To help slow down the process, you can scrape off loose rust pieces with a razor blade and then scrub the affected area with warm water and soap. Finally, apply a metal conditioner to prevent further rusting, and then put a new coat of paint on the area (if necessary).