As with all mechanical objects with moving parts, doors and hinges need to be lubricated on a fairly regular basis. There are a number of products you can use to ensure everything is running smoothly. One of the simplest ways to lubricate your hinges and locks is to use Vaseline.
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.
Vaseline: you can use vaseline for all sorts of applications. It is a great lubricant for metal parts such as the air installation, but it is also regularly used for installing PVC parts. Note: contrary to ball bearer grease, vaseline does become liquid at higher temperatures (40 - 60°C), causing it to drip.
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.
Graphite-free, 3-IN-ONE Lock Dry Lube is ideal for automotive, marine, home, and commercial locks and padlocks, and is safe to use on metal, wood, and most plastic surfaces (except clear polycarbonate and polystyrene).
If you are in a rush and need to remedy a sticky lock, the most convenient way is with olive oil from your pantry. In order to fix the lock using the olive oil, simply rub a small amount of the oil on your key and insert it in the lock.
Silicone Spray
A popular choice that many choose to stop doors making a squeaking sound is to spray the hinge with some silicone. Available at most good hardware stores, it's free from grease and oil and is safe to use on wood, metal, plastic, and rubber.
Silicone spray is excellent for fixing squeaky hinges and is widely available both online and in DIY stores. Silicone spray is free from mineral oils and grease, and safe to use on a variety of surfaces as a lubricant including plastic, rubber and metal.
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.
Vaseline
But the same greasy, gloopy texture that helps it moisturize can also help it act as a last-minute replacement to WD-40. Vaseline has a thicker texture than cooking oil, so It can be used for jobs where thinner oils might be messy.
Locks can stiffen up over time as dirt and grime work their way in. If you are finding it harder and harder to turn the key in your lock – and your children are complaining that they can't do it at all – it may be time to replace the whole mechanism. However, it is always worth trying to lubricate the lock first.
Door lock maintenance
Lubrication is an important factor that provides the necessary door lock functions. Grease all rubbing surfaces of the locking mechanisms on average once every 6 months. Spray a small amount of lubricant into the keyway.
It works especially well on porous items, such as plastic parts, but is a good lubricant on locks, hinges, and guns.
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. Once it has been sprayed, insert the key so the lubricant will work into the locking mechanism.
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. Never use oil based products such as WD-40 to lubricate locks because although they may help initially, they tend to cause problems with clogging later on.
For door hinge oil, your best option is to use silicone spray or white lithium grease. Silicone is the easiest, but it does not last as long as the grease. When used properly, the mess is minimal. Remove the hinge pins from the hinge one at a time.
The usage of Vaseline/petroleum jelly/soft soap is not recommended on screws and fasteners. These cannot be used under high temperature and pressure. However, there are specific manufacturer recommended compounds which are typically used in centrifugal separator bowl assemblies and screws used within them.
Having a container of penetrating oil is helpful in all sorts of situations. It can lubricate all kinds of bolts and other fasteners, so they can be removed. The oil is also made to prevent metal parts from sticking against each other. This prevents them from corroding together and being unable to move as expected.
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