What to use to loosen locks?

Author: Carter Kihn  |  Last update: Friday, December 12, 2025

Use powdered graphite, Teflon, or PTFE-based lubricants like WD-40 Dry Lube to clear away any gunk or debris stuck in the lock. Slide your key in and out of the lock to spread the lubricant around the lock.

What is the best lubricant for locks?

Graphite powder is the preferred lubricant for locks. You should be able to get it at any hardware store in a squeeze bottle that is half air, allowing you to blow it right into the keyway. You are going to have to wait a while before putting it on, as the residual WD-40 will gum it up.

Can you use WD-40 to lubricate a lock?

Using WD-40 in a lock is generally not recommended. While WD-40 can help displace moisture and may temporarily lubricate a lock, it can also leave a residue that attracts dust and dirt over time. This can lead to a buildup that can eventually cause the lock to jam or function poorly.

What can I spray on my lock to lubricate?

GT85 Lubricant is perfect for using and applying to Door Locks the GT 85 spray is a multi-purpose lubricant that helps keep your door and window hardware in good working order. GT85 lubricates and protects while also cleaning automobiles and motorcycles.

How to unstick a lock?

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.

Best Way to Lubricate a Door Lock

Can you use olive oil to lubricate a lock?

Don't use oil.

Oil might assist the moving parts of the motor in your car, but it is never a good idea to squirt it in a stiff lock. The oil will just combine with any grime already in the mechanism and compound the situation.

Is Vaseline good for locks?

Yes, you can use Vaseline instead of WD-40 if you need a quick substitute. However, keep in mind Vaseline may not work for all applications, including inside locks. While it can work great on door hinges, it may be too sticky for locks and end up attracting dust and dirt particles—which can cause damage to your lock.

What can I spray in a lock to loosen it?

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.

How do you open a lock that won't budge?

If you do want to attempt to fix this issue yourself, you can try using powdered graphite or a graphite spray. 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.

Why do locks get stiff?

Locks can become stiff to operate due to issues such as dirt in the lock cylinder and lack of maintenance of the locking system. Hopefully, at this point, your lock can still be saved with some attention.

Why is my door lock suddenly hard to turn?

Another possible cause of a stiff lock is dirt buildup on the tumblers inside the lock cylinder. When dirt builds up inside these tumblers, they may become stuck together, preventing them from moving freely when you try to turn your key or insert it into the lock.

How to free a seized lock?

Use powdered graphite, Teflon, or PTFE-based lubricants like WD-40 Dry Lube to clear away any gunk or debris stuck in the lock. Slide your key in and out of the lock to spread the lubricant around the lock.

What is the best lubricant for stiff locks?

What's the best lubricant for your lock? When choosing the best product to lubricate locks, dry lubricants like graphite powder and PTFE lubricants are best. As mentioned above, oil-based products can attract dust and dirt which can damage the delicate internal mechanism of your lock.

What does apple cider vinegar do for locks?

ACV has an acidic pH, and using it as a rinse can help to restore the natural pH of the scalp. ACV helps to remove buildup: Locs can sometimes develop buildup from products, sweat, and other factors. ACV is a natural clarifier, meaning that it can help to remove buildup from the hair and scalp.

What mineral is used as a lubricant for locks?

Graphite. Used in air compressors, food industry, railway track joints, brass instrument valves, piano actions, open gear, ball bearings, machine-shop works, etc. It is also very common for lubricating locks, since a liquid lubricant allows particles to get stuck in the lock worsening the problem.

How to fix a stiff lock?

Lock is stiff and difficult to open

You can apply some graphite spay or silicone based lubricant in the lock, put the key back in and turn it a few times.

Which oil is used as a lubricant?

These include aloe vera, yogurt, olive oil, and virgin coconut oil. People should avoid the use of petroleum jelly, lotion, butter, or spit as lubricant alternatives, due to the increased risk of infection or irritation.

How to loosen a lock?

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.

How do you budge a lock?

Apply Pressure: Try applying firm but controlled pressure on the door while attempting to turn the key. This may help realign the latch. 2. Lubricate the Lock: Use a grease-free lubricant like natural graphite to ease the movement of the lock's internal components.

Is it okay to put WD-40 in a lock?

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.

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