A door lock mechanism is complex, fiddly, and vulnerable to jamming. In wintry weather, locks can become stiff and difficult to operate, whilst moisture can create rust and cause the lock to stick and prevent your door from locking.
Use a can of compressed air or a small brush to clean the keyhole thoroughly. Lubricate the lock: Sticky locks are often due to a lack of lubrication. Apply a graphite-based or silicone-based lubricant specifically designed for locks. Avoid using oil-based lubricants as they can attract more dust and grime.
Moisture inside the lock can freeze if temperatures drop low enough.
You certainly can use WD-40 in a lock, but you shouldn't. Almost all locks are designed and fabricated to operate without lubrication. If you add an oil or grease to them, that will serve to collect dust and dirt and increase wear on the lock, encouraging it to jam up.
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.
If you have a stuck door lock, spray lubricant into the lock's keyhole. Doing so will loosen any debris or deposits sitting inside your stuck lock and prevent your key from turning. Insert the key and rotate it a few times to work in the lubricant, releasing the stuck part.
When a lock has been left for some time outside in the elements, rust and grime builds up and can seize a lock. Unseizing a lock can take some time and patience. The symptoms of a seized lock include not being able to insert the key, the key does not turn or the key turns but nothing happens.
Spraying your locks with WD-40 helps to prevent moisture build-up inside the mechanism, which would otherwise freeze over a cold night. If you're expecting freezing temperatures, spray some WD-40 into your lock and the lubricant will take care of things.
Just gently squeeze a very small amount of graphite powder into the keyhole, and then use your key to slowly work the lubricant into the lock. Another way to do it is to coat your key with the graphite powder first, and then simply insert it into the lock.
WD-40 While WD-40 is a penetrating oil and technically not a lubricant, it can get a stuck lock moving if you're in a pinch. Simply spray WD-40 into the lock. Then, repeatedly insert your key into the keyhole to work the WD-40 into the lock.
Oil, plus the environment – you don't want that in your lock, so you'll want to use a graphite or silicone spray rather than your regular WD-40 or other oil-based lubricants. WD-40 does make a product specifically for locks, WD-40 Specialist Dry Lubricant and we also like 3-IN-ONE's Lock Dry Lube.
To fix the problem, the first thing to do is to squirt a small amount of dry lubricant or graphite powder inside the slot where the key goes. Insert the key into the lock and pull it out a few times without turning it.
This is typically a small button or hole on the side or bottom of the lock. If your lock has a reset button, press and hold it down. For locks with a reset slot, insert the reset tool provided with the lock. While holding the reset button or tool, set your new combination by turning the dials to your desired numbers.
There are three main reasons why a door lock mechanism is stiff or sticking: Debris in the lock. Extremes of temperature. A broken lock mechanism or gearbox.
Should I use WD40 to lubricate door locks? The simple answer is you should not use WD40 to lubricate locks. WD-40 is one of the solvent-based lubricants and does not contain any lubricant and over time can make your lock even stickier by gumming the lock up.
Some of the most common culprits include: Dirt and Debris. Over time, dust, dirt, debris, and even broken pieces of your key can accumulate in the lock mechanism, hindering its smooth operation. This build-up can lead to a situation where the key turns, but the lock won't open.
De-Ice the Keyhole – The best option is to use a de-icing spray to target the keyhole of the lock If you have access to a lubricant spray, such as WD40, this can also be used to clear some of the ice from inside the lock cylinder through the keyhole.
Conclusion. Encountering a frozen lock can feel like an inconvenient roadblock, but understanding the problem allows you to tackle it effectively. Rubbing alcohol emerges as a viable option to unfreeze a lock due to its moisture-displacing properties.
Coat your key in graphite and insert it into the keyhole. The graphite will act as a lubricant to help unjam lock tumblers that may have become clogged with debris over time.
Some of the best door lock lubricants available on the market today include Houdini Lock Lube, DuPont Teflon lubricant, Master Lock 2300D PTFE lubricant, and Lock Saver Lubricant. At QuickPro Locksmith, we take pride in providing a wide range of locksmith services to homeowners and businesses.
A door lock that doesn't spin indicates a problem with the key or the lock mechanism. The key might be worn out or bent, preventing it from turning smoothly. Alternatively, debris or rust inside the lock could be causing the issue. Try using a different key or lubricate the lock with graphite spray.