3 Easy Ways To Maintain Cast Iron Tools

The video “3 Easy Ways To Maintain Cast Iron Tools” is by Jodee from Inspire Woodcraft. In this engaging tutorial, Jodee shares his expertise on maintaining cast iron tops in the workshop, focusing on rust removal and prevention.

Getting Started

Jodee kicks things off with a relatable story about his recent experience cutting birch countertops with his new saw. After a sweaty day of work, his cast iron top was left with a plethora of fingerprints and palm prints. After letting it sit for a week, he decided it was time to tackle the rust.

He emphasizes that there are many ways to handle rust removal, but he’s sharing the method he found most effective. If you’re unsure about the process, Jodee suggests starting on a smaller surface, like the table of a bandsaw, before moving on to larger cast iron tops.

Jody preparing to clean the cast iron top

Step 1: Clean the Surface

Before diving into rust removal, Jodee stresses the importance of starting with a clean work area. He used a vacuum and a brush to clear off debris, followed by cleaning the surface with denatured alcohol. This step is crucial as it removes the surface rust and any lingering residues or waxes, preparing the cast iron for the next steps.

However, he encountered a hiccup when he discovered that denatured alcohol isn’t sold in California. So, he finished cleaning with mineral spirits instead. Jodee mentions that acetone or paint thinner can also be used, but warns that they may damage any paint on the surface, so proceed with caution.

Jody cleaning the cast iron top with denatured alcohol

Step 2: Rust Removal Techniques

Jodee shares a couple of methods for rust removal, starting with using WD-40 as a lubricant paired with wet/dry sandpaper. He suggests wrapping the sandpaper around a flat piece of scrap wood for better control. For his project, he used 400 grit sandpaper, which worked well, but notes that the level of rust will dictate the grit you should use.

Jody demonstrating the sanding technique on the cast iron top

While this technique is effective for spot removal, Jodee found it messy for larger surfaces and didn’t like the linear scratches it left behind. So, he opted for a second method: using a random orbit sander.

When using the sander, Jodee advises starting with a lighter grit and working down to a heavier grit while maintaining even pressure across the surface. He starts with 400 grit and works down to 150 grit, emphasizing the importance of not focusing too long on one spot to avoid uneven surfaces.

Jody using a random orbit sander on the cast iron top

Step 3: Apply Paste Wax

Once satisfied with the finish, Jodee cleans the top again and applies a heavy coat of paste wax. He prefers Minwax paste wax, noting that it provides a nice protective layer against rust. After applying, let it sit for about 10 minutes before buffing it out with a clean rag. This will leave you with a smooth, rust-free surface that materials glide across effortlessly.

Magic Eraser for Steel

Jodee introduces a handy tool he refers to as a “magic eraser for steel.” This sand flake sanding block from Klingspor is perfect for quick touch-ups after using the saw. It comes in three grits and is inexpensive, making it a great addition to any woodworker’s toolkit.

Jody demonstrating the use of the sand flake sanding block

Final Thoughts

Before wrapping up, Jodee reminds viewers that while it’s important to keep the cast iron top clean, it doesn’t need to be perfectly rust-free. Minor scratches and wear are normal and part of the tool’s character. Heavy rust spots, however, should be addressed as they can affect the performance of your tools and create an unsafe work environment.

With these techniques, Jodee has successfully maintained his cast iron tools, and he hopes his tips will help others do the same.

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