How to Remove Rust with Phosphoric Acid

Save

Rust is a crusty corrosive condition that occurs on metal when it is exposed to air and moisture. Small areas of rust present an unattractive appearance on the surface of the metal object. If left untreated, the rust will spread until it actually forms a hole in the metal. One effective rust-removal solution is to use phosphoric acid in gel form to dissolve the corrosion.

Things You'll Need

  • Long sleeves
  • Long pants
  • Rubber gloves
  • Safety glasses
  • Phosphoric acid jelly
  • Paintbrush
  • Steel wool
  • Garden hose
  • Baking soda
  • Scrub brush
  • Move the rusty object to a well-ventilated outdoor location.

  • Put on long sleeves, pants, protective gloves and safety glasses before opening the can of phosphoric acid jelly.

  • Apply the jelly to the rusty object using a paintbrush until the entire object is coated with the jelly. Cover even the non-rusted parts because the acid will provide a slight protective finish to those areas. Allow the phosphoric acid jelly to sit for the amount of time recommended by the manufacturer.

  • Scrub the rusted areas of the metal object with a piece of steel wool to remove the rust. The rust will easily come off as you scrub. If the rust does not come off easily, allow the jelly to sit for five additional minutes.

  • Rinse off the entire metal object with a garden hose to remove most of the phosphoric acid jelly.

  • Sprinkle baking soda onto the surface of the metal object until it is coated.

  • Scrub the surface of the object with a scrub brush and rinse with water from a garden hose. The baking soda neutralizes the acid and stops it from continuing to act on the metal. Allow the metal object to air dry.

Tips & Warnings

  • Phosphoric acid jelly is available at any home improvement or hardware store. You can also find it in a liquid form.

References

  • Photo Credit rust 2 image by Stanislav Halcin from Fotolia.com
Promoted By Zergnet

Comments

You May Also Like

  • Cola As a Rust Remover

    The rumors of cola's strength as a rust remover may have been greatly exaggerated. Beginning in the early 2000s, an email message...

  • Homemade Rust Remover for Metal

    Homemade rust removers range from the innocuous, which contain common household ingredients, to the take-extreme-caution-while-using, which potentially dangerous chemicals. It’s advisable to...

  • How to Clean Concrete With Phosphoric Acid

    Concrete is usually easy to maintain and stands up extremely well to the elements. On occasion, however, concrete can accumulate thick layers...

  • The Best Rust Removers

    Rust, also called corrosion, forms on unprotected metal surfaces when oxygen and water combine to cause oxidation. Oxidation creates iron oxide, which...

  • Chemicals Used to Remove Rust & Corrosion

    Rust or iron oxide, is the reddish brown crust that forms on materials containing iron and is the result of the corrosion...

  • What Dissolves Rust?

    Rust will occur on metal when the metal has been exposed to moisture and corrodes. If not treated properly, rust can continue...

  • Phosphoric Acid & Tile Cleaning

    Tile cleaning can prove frustrating, especially if the tile has become riddled with difficult rust or mineral deposits. Certain types of tiles...

  • Homemade Soaking Metal Rust Removers

    When even a slight bit of moisture comes in contact with metal, rust can form. Rust eats away at most types of...

  • Citric Acid Rust Removal

    Oxygen corrodes iron to form rust, a reddish form of iron oxide. A molecule of rust is larger than a molecule of...

  • Muriatic Acid Rust Removal

    Muriatic acid is a form of hydrogen chloride gas. It is used in an aqueous form and has an unpleasant odor. Its...

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!