To safely remove surface rust from an old tool that is not stainless steel, you can follow these steps:
Gather the necessary supplies: You will need a few items to remove the rust. These include a wire brush or steel wool, rust dissolver or penetrating oil, a cloth or rag, and protective gloves.
Prepare the work area: Find a well-ventilated area with good lighting and place a drop cloth or newspaper to protect the surface underneath the tool. It's also a good idea to wear protective eyewear to shield your eyes from any debris.
Remove loose rust: Use a wire brush or steel wool to gently scrub the tool's surface, removing any loose or flaky rust. Be careful not to scrub too aggressively, as you don't want to damage the underlying metal.
Apply rust dissolver or penetrating oil: Apply a rust dissolver or penetrating oil to the rusty areas of the tool. Follow the instructions provided by the manufacturer for the specific product you are using. These products work by breaking down and loosening the rust, making it easier to remove.
Let it sit: Allow the rust dissolver or penetrating oil to sit on the surface for the recommended amount of time. This will give the product enough time to penetrate the rust and loosen it further.
Scrub the rusted areas: After the designated waiting time, use the wire brush or steel wool to scrub the rusted areas again. Apply moderate pressure and scrub in a circular motion to remove the remaining rust. You may need to repeat this step a few times until the desired results are achieved.
Wipe and clean: Use a cloth or rag to wipe away any residue left behind by the rust dissolver or penetrating oil. Ensure that the tool is clean and free of any excess product.
Prevent future rust: To prevent further rusting, consider applying a rust inhibitor or protective coating to the tool. This could be a rust-resistant primer, paint, or a specialized rust prevention product. Follow the instructions on the product for application methods and drying times.
Remember, if you encounter stubborn or extensive rust, or if the tool holds significant value, it may be best to consult a professional for restoration or further advice on proper rust removal techniques.