No, you generally should not use regular WD-40 in door locks because it's a solvent and water displacer, not a long-term lubricant, and its oily residue attracts dust and grime, eventually gumming up the lock. For a sticky lock, it might offer a temporary fix by cleaning it out, but for proper lubrication, use a powdered graphite or a silicone/PTFE-based spray designed specifically for locks to keep the mechanism working smoothly and prevent future issues.
Lubricants for Locks and Door Hardware
Best to use silicone. Silicone dries upon contact and does not attract dust. WD40 stay wet and will gum up a lock.
You should not use WD-40 on electronics, bike/drive chains, rubber/plastic parts, locks, car paint/belts, and anything in contact with food or that requires a true long-term lubricant like gears, as it's primarily a solvent and water displacer, not a heavy-duty lubricant, and can damage these materials or attract dirt, leading to future problems. It's a great degreaser and rust preventative for metal, but often the wrong choice for sensitive components or heavy lubrication needs.
The short answer: no, you shouldn't use standard WD40 on locks. Many people try using WD40 on locks to loosen them when they get stuck, since it works as a lubricant for many things. But standard WD40 actually does the opposite. WD40 strips a lock of its natural lubricant and can make your lock stiffer or even sticky.
Door Locks
"Because WD-40 attracts dust and dirt, it can clog up the internal mechanisms, making the problem worse." Marino recommends using a dry graphite powder instead, which functions as dry lubrication and is a solid choice for stubborn locks.
Teflon-based Lubricants
Polytetrafluoroethylene, or PTFE, is a Teflon-based lubricant that dries inside the lock to leave behind a non-stick, water-repellent film on all the surfaces. Since it's dry, it doesn't attract dust or dirt.
Most people don't know that WD-40 can solve many of their household cleaning needs quickly and easily. When cleaning a toilet bowl, WD-40 works by softening the rust and lime deposits, so they can be easily wiped away. You don't need to use much of it.
The Multi-Use Product is great for loosening and removing excessive surface rust. You simply spray it on the surface, wait around ten minutes, and scrub it off with something abrasive. Its lubricating qualities loosen the bonds between the rust and the metal surface it has adhered to.
Just spray WD-40 around the door, along the bricks, and even around the windows, and you'll dramatically reduce the number of ants, spiders, and other small insects making their way inside. It's amazing how a household product can solve such a common problem!
Best Lubricant for Door Locks
Spray WD-40 On The Door Lock
This is when you get your can of WD-40 and spray it on the door lock to keep it lubricated. Instead of using a lubricating oil that would make your hands and clothes dirty, WD-40 gets the work done with a single spray.
Fortunately, this is often an easy fix. Simply grab a can of WD-40, silicon-based lubricant, graphite spray, or a dry lubricant and spray it into the keyway.
Don't use oil.
The oil will just combine with any grime already in the mechanism and compound the situation.
WD-40 can damage plastic, rubber, wood, and painted surfaces. Avoid using WD-40 anywhere that may be at risk of fire, like gas appliances or electrical components. Use WD-40 on metal surfaces, like bolts, nuts, and metal-on-metal friction spots.
It provides long-lasting protection of up to one year in outdoor environments and is ideal for protecting equipment stored outside like chains, locks and propane tanks. Instead of constantly replacing parts and tools, remove and prevent rust with WD-40 Specialist products.
White vinegar is one of the most effective household products that can be used to clean rust.
Instead of calling a plumber, you can handle it yourself with a simple, cost-effective, and efficient method: unclogging the toilet with dish soap. This method not only helps you quickly resolve the clog but is also safe for your home's drainage system.
Plumbers recommend regular cleaning with a good toilet brush and a cleaner (like vinegar/baking soda or commercial products), using pumice stones for tough stains, disinfecting with antibacterial sprays on the exterior, and occasionally deep-cleaning the tank with vinegar, always letting cleaners sit to work, and avoiding mixing chemicals like bleach with other cleaners.
Those brown stains are usually the result of hard water, or water with a high mineral content (usually calcium and magnesium). Over time, hard water leads to mineral buildup, also known as limescale, which is a sort of off-white color.
Graphite lubricant or silicone spray: These lubricate the locks, helping to keep the internal component working smoothly. Avoid using oil-based products like WD-40, as they can attract more dirt.