A reliable set of tools is essential, whether you’re an avid DIYer or only need them for emergencies. But even the best tools are susceptible to rust, which compromises their structural integrity and inhibits proper function. Rust is most likely to form when tools come into contact with moisture, but thankfully, there’s a simple trick…
Chalk to the Rescue
Regular blackboard chalk — the type commonly found in classrooms or craft stores — is an unlikely, inexpensive, and surprisingly effective tool for preventing rust. Chalk is naturally porous, meaning it absorbs moisture from the air. The more moisture it soaks up, the drier the air around your tools becomes, reducing the likelihood of rust.
What Should You Do?
Begin by emptying out your toolbox (consider decluttering while you’re at it) and giving it a thorough cleaning, inside and out. Allow the box to fully dry, then add your hand tools, and place several pieces of chalk in various drawers or compartments. There’s no rule of thumb, but consider starting with two to three pieces for a small toolbox, three to five for a medium toolbox, and five to seven for a large toolbox.
Once complete, seal the box tightly so no additional moisture creeps in. As time goes on, you’ll likely see pieces of chalk soften and crumble. If this happens, it’s time to replace that piece with a brand-new stick of chalk.
The Best Chalk To Buy
It’s better to use multiple sticks of blackboard chalk than one extra-large stick of sidewalk chalk, as the former helps to absorb moisture evenly throughout the toolbox. When it comes to color, you can choose whatever suits you; there’s no difference between white chalk and bright shades in terms of their ability to absorb water.
Follow this one simple trick to help keep your tools rust-free. Who knows — you might even end up with some leftover chalk for designing a menu board or future art projects.
