How to Remove Rust From a Nickel Plated Iron Block

Rust results from oxygen and the metal interacting and creating the rust on top of the metal. Nickel is sometimes used to coat iron materials because iron rusts easily. When the nickel plating starts to rust, it leads to weaknesses and the open air is able to get to the iron material beneath and the iron also begins to rust. Removing the rust as soon as possible will prevent damage to the iron block.

Things You'll Need

• Scrub pad or steel wool
• Rust-removing cleaner
• Gloves
• Phosphoric acid (naval jelly or Coke)
• Container (optional)
• Water
• Cloth(s)
• Towel
• Spray-on household lubricant

Instructions

1. Scrub the rust off with a scrub pad or steel wool. This will remove the large pieces of rust or the top-most layers. The scrub pad will not get into the small crevices, but it is the fastest way to remove large amounts of rust.

2. Apply a rust-removing cleaner. Application methods will differ slightly depending on the cleaning solution, but most are sprayed on. Allow it to sit for a few minutes. The amount of time will differ based on the specific solution used and the instructions. Scrub it away with the scrubbing pad. Wear rubber gloves if preferred.

3. Apply phosphoric acid to the rust. According to Metal Web News, phosphoric acid will eat away at the rust but is slow to eat away at metal. The type of phosphoric acid purchased will dictate how it is applied. One option is naval jelly, which is applied in a thick layer using a cloth or just your hands. Another option is Coke, which also contains phosphoric acid and requires soaking rather than spreading. If using Coke, place the iron block in a glass or plastic container and pour the Coke into the container until it covers the block. Allow it to sit on the block for a few minutes. The length of time will differ based on the amount of rust on the block.

4. Rinse off the phosphoric acid. Dampen a cloth and wipe the block of metal-plated iron to remove any remaining rust particles and extra water.

5. Dry the metal immediately. Never allow water to sit on metal because it will cause rusting. Use a towel and remove all the water until the block of metal is dry.

6. Apply spray-on household lubricant to the metal. This will prevent further rusting.

References

• Metal Web News: Primer on Rust
• Corrosion VCI: Rust Remover
• Earth Easy: Non-Toxic Home Care