Factory Lubed vs Unlubed Switches: What It Means for Feel

What switch lubrication does

Mechanical switches contain a stem, spring, and housing. When you press a key, the stem slides against the housing and compresses the spring. Without lubricant, those parts rub directly, producing a slightly scratchy feel and a higher-pitched, plastic-on-plastic sound.

Applying a thin layer of lubricant to the contact points reduces friction. The stem moves more freely, the keystroke feels smoother and more consistent, and the sound becomes deeper and more muted. Lubrication also helps the spring by reducing pinging or ringing when the key returns. The result is a quieter, more refined typing experience.

The effect is most noticeable on linear switches, which have no tactile bump or click to mask the friction. Tactile and clicky switches also benefit, but the bump and click dominate the feel and sound, so some users prefer to leave them dry.

What 'factory lubed' means

When a keyboard is advertised as factory lubed, the manufacturer applies lubricant to each switch during production. This can be done by hand or by machine, and the quality varies between brands. Some factories apply a generous amount, while others use just a thin wipe.

Factory lubed keyboards save you the trouble of opening and treating every switch. You get a smoother feel from the first keystroke, and you don't need to buy lubricant or invest time in the process. For many people, that convenience justifies choosing a pre-lubed board.

However, factory lubing is not always consistent. Some switches may be over-lubed, slowing the return, or under-lubed, leaving a scratchy spot. If you are particular about feel, you might still want to re-lube or replace switches later, especially if the board is hot-swappable.

Feel and sound: lubed vs unlubed

The most direct comparison is between two identical switches, one with lubricant and one without. The unlubed switch feels slightly gritty, as if you can feel the stem scraping the housing. The lubed switch feels slick and buttery, with a uniform resistance from top to bottom.

Sound changes as well. Unlubed switches produce a brighter, sharper clack because the plastic surfaces vibrate more. Lubricant dampens that vibration, yielding a lower, thockier tone. If you type in a shared space or want a quieter board, lubrication can help reduce noise, though the effect is modest compared to adding sound-damping materials or using different keycaps.

Keep in mind that the keycap and the switch housing also affect sound. A thick PBT keycap will sound different from a thin ABS one, as explained in our keycap materials article. Lubrication is one factor in a larger system.

How to tell if switches are lubed

If you are buying a new keyboard, check the product specifications or the manufacturer's description. Many listings explicitly say 'factory lubed' or 'pre-lubed.' If the listing is silent, assume the switches come unlubed unless stated otherwise.

If you already own a board and want to check, remove a keycap and a switch (if hot-swappable) and look at the stem. A visible film of grease on the rails or on the outside of the spring suggests it was lubricated. You can also press the switch without a keycap and feel for scratchiness. A lubed switch will slide smoothly, while an unlubed one will feel slightly rough.

If your keyboard is not hot-swappable, you can still feel the difference by comparing different keys. If all keys feel equally scratchy, they are likely dry. If some are smoother than others (for example, keys that get more use), lubrication may have degraded or been applied unevenly.

Should you choose a factory lubed keyboard?

For most users, a factory lubed keyboard is the safer choice. It delivers a better feel out of the box, and you do not lose anything except the ability to say you did the work yourself. The quality difference between a well-lubed factory board and a hand-lubed one is usually small, and many people cannot tell them apart in a blind test.

If you enjoy tinkering, have specific preferences, or plan to swap switches anyway, an unlubed board gives you a blank slate. You can choose your own lubricant and apply it exactly how you like. This is easier if the keyboard uses hot-swappable sockets, as described in our hot-swappable keyboards guide.

There is also a middle ground: some boards come with reasonably lubed switches that you can improve later. If you are not sure, buying a hot-swappable factory lubed board means you can keep the switches if you like them or replace them if you do not. Our best hot-swappable keyboards guide lists models that allow this flexibility.

Lubricating yourself: what to know

If you decide to lubricate switches yourself, you need a switch opener, a small brush, and a lubricant designed for mechanical switches. Thin oils are easier to apply and suit linear switches, while thicker greases provide a more damped feel but can slow the switch if over-applied. The exact type is a matter of personal taste.

The process involves opening each switch, applying a thin coat to the stem's contact points, the inner rails of the housing, and sometimes the spring. Too much lubricant can make the switch feel sluggish or mushy, so start with less and add more if needed.

This is a time-consuming task: a full-size keyboard has over a hundred switches. If you only want to improve a few keys, you can lube just those. For a budget-friendly option, consider a board with unlubed switches and do it yourself. The best mechanical keyboards guide can help you find models with unlubed switches if that is your preference.

Switch type and lubrication

Linear switches benefit the most from lubrication. Without a tactile event or click, the only feedback is the stem sliding, so reducing friction directly improves the feel. A well-lubed linear switch feels almost effortless, with a smooth, consistent press every time.

Tactile switches have a bump that you can feel, which masks some scratchiness. Lubrication makes the pre-travel smooth and the return snappier, but the bump remains the dominant sensation. Some users report that over-lubing a tactile switch can mute the bump, so manufacturers often apply a lighter coat.

Clicky switches use a separate mechanism to produce the click sound. Lubricating the moving parts can reduce the click's sharpness, which some users dislike. Many clicky enthusiasts prefer their switches dry to keep the classic, crisp sound. If you favor clicky switches, consider whether the lubrication will alter the character you enjoy.

How to decide when buying

Start with the type of feel you want. If you want the smoothest possible typing and are happy to let the maker handle it, look for a keyboard that explicitly states factory lubed. This is common on premium boards and even some budget models, as seen in our budget keyboard guide.

If you are a hobbyist who enjoys customizing, an unlubed board with hot-swappable switches gives you the most freedom. You can lube a few switches to test before committing, or leave them as is for a brighter sound. Our best hot-swappable keyboards guide covers the options.

Another factor is the switch type itself. If you choose clicky switches, unlubed or lightly lubed is often preferable; if you choose linear, factory lubing is a strong plus. Tactile sits in between, and your personal taste will decide.

No matter which route you take, remember that lubrication changes the feel and sound but does not affect the switch's rated lifespan or the keyboard's basic function. Keyboards still communicate with your computer via the HID protocol, as defined by the USB-IF, and wireless models use Bluetooth or other radios. Those are separate concerns from the tactile experience.

What to pick for your use

Questions

Are factory lubed switches always better?

Not always, but for most typists they feel smoother and sound deeper. The quality depends on the manufacturer's process. Some factory lubing is inconsistent, with some switches over- or under-lubed. It is still usually a step up from unlubed.

Can I lube switches on a non-hot-swappable keyboard?

You can, but it requires desoldering each switch to open and lube it. That is time-consuming and risky if you are not comfortable with soldering. For that reason, lubrication is much easier on a hot-swappable board.

Does lubrication change the switch's lifespan?

Lubrication reduces friction, which can slightly reduce wear, but the effect is minor. Switch lifespan is determined mainly by the design and materials, not lubrication. You will not see a meaningful difference in millions of presses.

What type of lubricant should I use?

There are many options, but the general rule is to use a thin lubricant for linear switches and a slightly thicker one for tactile. Avoid oil-based products that may damage plastics. A small brush applicator gives control. Start with a minimal amount and test the feel.

Will lubrication make my keyboard quieter?

Yes, it reduces the high-frequency clack from plastic-on-plastic contact, making the sound lower-pitched and more muted. But the overall volume also depends on the switch type, keycaps, and case material. Lubrication is one step toward a quieter board.