Devin J
WD-40 has become a staple in toolboxes and on garage shelves worldwide. Manufacturers market it as a versatile lubricant that cleans and prevents rust, often positioning it as a multipurpose solution. However, this popular spray’s superhero reputation may overstate its capabilities because using WD-40 in certain situations can cause more harm than good. So, before you reach for that familiar blue and yellow can, read our guide on ten places not to use this ubiquitous product.
Door Hinges
If you’re tackling a squeaky door, your instinct might be to grab WD-40, hoping for a quick fix. While it might temporarily silence the squeak, WD-40 lacks sufficient lubrication to properly grease hinges for long-term smooth operation. Moreover, its residue can attract dust and dirt, potentially harming the hinge over time.
Bike Chains
WD-40 is often debated as a solution for bike chains, with some suggesting it can be wiped clean to prevent dirt buildup. However, repair shop owners advise against using WD-40 directly on chains. Instead, they recommend using dedicated bike lubricants for better long-term chain maintenance.
Locks
Ever wrestled with a stiff key-operated lock? WD-40 might offer a quick fix by loosening things up temporarily. But here’s the twist: it lacks the suitable lubricant properties to keep your lock turning smoothly in the long haul. Plus, its degreasing action could strip away the little lubrication left, leaving you stuck in a sticky situation.
Polycarbonate Plastic
WD-40 is a go-to for reviving plastic items, adding shine, and effortlessly removing grime. But when it comes to polycarbonate plastics, it’s best to avoid WD-40. These materials require special care, so opt for products designed for transparent plastics to maintain their clarity.
Wax Coated/Painted Furniture
When it comes to furniture coated with wax or any painted surface, it’s best to keep WD-40 at bay. The spray can soften the wax, altering its appearance or even causing it to strip off entirely. In the worst-case scenario, this might require refinishing the entire furniture.
Car Brakes
WD-40 is handy for tasks like drying wet distributor caps and quieting car hinges, but it is only suitable for squeaky brakes. Brake pads need friction to stop your car safely, and WD-40’s lubricating properties can reduce this friction. If your brakes are noisy, it indicates the need for professional brake service.
Kitchen Objects
Using WD-40 in the kitchen poses risks unless applied away from heat and food-contact areas. It’s flammable and unsafe for consumption, so it’s wise to avoid using it where residue could be an issue. WD-40 works well on kitchen and bathroom floors for cleaning tile and grout, but you should avoid using it on tile countertops.
Electronics
Our electronic devices are essential to us, so we seek quick fixes when they malfunction to get them back in action fast. But if you encounter a sticking button or a slider that won’t move, WD-40 isn’t the solution. Applying it can harm the exterior of your electronics and might void the warranty you have.
Treadmill Belt
Lubricating your treadmill belt every three months will keep it running smoothly and your workout sessions safe. However, do not use WD-40 as it can damage the rubber components within the machine. Opt for silicone-based lubricants explicitly designed for treadmill belts to maximize durability and minimize maintenance issues.
Natural Stone
Natural stone, if unsealed, is porous and vulnerable to cleaners that can saturate and permanently discolor it. Harsh cleaning solvents, like WD-40, can damage these. For a deeper clean, mop or wipe the stone with warm water and a stone cleaner or mild soap. After cleaning, rinse the stone thoroughly.
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