Mechanical Keyboard Keycaps: Everything to Know

Find out what sets the different kinds of keycaps apart, and which may be right for you.

Tech enthusiasts know that mechanical keyboards tend to be more comfortable, durable, and effective than their membrane counterparts. Sophisticated key switches are only part of the reason why. Mechanical keyboard keycaps are also a huge factor in how these peripherals perform. The right keycaps can help you type faster and more accurately, letting your fingers rest in pleasant positions between keystrokes. Better typing contributes to better gaming, better productivity, and better computing overall.

There are hundreds of different mechanical keyboard keycaps available for purchase. To find the perfect ones for your setup, you’ll first need to learn about the myriad manufacturers and materials on the market. You’ll also want to ensure that your new keycaps are compatible with your current switches. Once you know how to choose, purchase, and install a set of keycaps, you’ll be able to customize — and even improve — your mechanical keyboard.

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What are mechanical keyboard caps?

Mechanical keyboards are popular among computer users for their tactile feel and audible feedback. One of the things that make them unique is mechanical keyboard keycaps, which are the removable covers that are placed over the key switch of a keyboard.

Keycaps are specially designed to be comfortable and durable while improving typing efficiency. They come in many different shapes, sizes, and colors, and it’s common for people to customize their keyboards with different keycaps.

Mechanical keyboard keycaps come from a variety of manufacturers — and a variety of styles. You can get keycaps in just about any color you can think of. They can be opaque, translucent, or transparent. Some have regular English characters; some have creative fantasy scripts; and some are totally blank. The possibilities are nearly endless.

Before you invest in a set of new keycaps, familiarize yourself with some of the different vendors and materials on offer.

Understanding keycap profiles: OEM, Cherry, and more

The vast majority of mechanical keyboards come with keycaps already attached. These are known as Original Equipment Manufacturer (OEM) keycaps. If you buy a prebuilt keyboard and don’t feel like tinkering with it, this is the only type of keycap you need to know about. However, if you want to customize your keyboard, swapping out keycaps is a relatively simple and inexpensive way to start. In addition to OEM keyboard keycaps, you’ll also need to know about Cherry, Spherical All (SA), and Deep Sculpted Angled (DSA) models.

OEM keycaps

OEM, or original equipment manufacturer, keycaps are the most common type of keycap and are often used in mass-produced keyboards.

They are typically made of ABS plastic and have a default shape and color. POM keycaps are common in OEM keyboards; POM is a type of plastic that is known for its durability and resistance to wear and tear.

Most OEM keycaps have a textured concave surface to help you feel where your fingers need to be without looking at the keyboard.

SA keycaps

SA keycaps are taller than most others. They are also often thicker and have a more pronounced, sculpted profile and a spherical touch area. They are often preferred by gamers and people who type a lot, as their pronounced sculpting can provide a more comfortable typing experience.

In addition, SA keycaps have a unique look that can help to make your keyboard stand out. Many SA keycaps come in bright colors or with intricate designs that can add a touch of personality to your keyboard.

DSA keycaps

DSA keycaps are a low-profile type of keycap that is pre-formed to fit onto a key switch. DSA keycaps have a uniform profile and are not contoured, which makes them easier to remove and clean than other types of keycaps.

However, because they are uniform across rows, some typists find them to be less comfortable than other types of keycaps.

Cherry keycaps

Cherry keycaps are high-quality keycaps that are designed to offer improved typing performance and durability. Cherry Corporation is a leading manufacturer of keyboard parts and accessories, and their keycaps are widely considered to be some of the best in the industry.

Cherry keycaps are made from a substance called PBT, a thermoplastic known for its resistance to wear and fading. In addition to their superior durability, Cherry keycaps are also available in a variety of colors and designs.

Did you know? Not sure where to get started for your first mechanical keyboard? Check out our guide to 9 of the best mechanical keyboards for every budget. The HHKB layout repositions the control key to make it easier to execute more time-saving commands without leaving the home row. Click here to learn more.

What are the most common keycap materials?

Most keycaps are made of one or two materials, though some manufacturers opt for other options.

ABS keycaps

ABS (acrylonitrile butadiene styrene) is a thermoplastic resin made by combining two monomers: acrylonitrile and butadiene. This combination results in a material that is strong and flexible.

ABS keycaps are common on lower-end keyboards because they are cheaper to manufacture. Light-colored ABS keycaps can yellow over time due to exposure to sunlight and hand oils. They are also prone to developing shiny spots.

PBT keycaps

PBT (polybutylene terephthalate) is also a synthetic polymer resin of the thermoplastic variety. PBT keycaps are usually found on customized and aftermarket keyboards because of their superior quality.

Mechanical keyboard enthusiasts tend to favor PBT because it is more durable than ABS and does not develop shine or yellowing with age. PBT keycaps also have a different feel than ABS keycaps, as they’re usually heavier and textured to provide a better grip.

Rubber keycaps

Some keyboard aficionados prefer rubber keycaps because they believe they provide a more comfortable typing experience. Keycap rubber is made from silicone, a synthetic polymer that is both heat-resistant and flexible.

Rubber keycaps are usually softer and quieter than ABS or PBT keycaps. However, rubber is not as durable as ABS or PBT and can develop a sticky feel over time. Rubber is also much harder to clean than plastic.

How mechanical keyboard keycaps change the typing experience

The way a keyboard feels is important to many typists, and the keycaps are a big part of that. Different materials, thicknesses, and profiles can all affect how typing on a keyboard actually feels. For example, thicker or thinner keycaps can change the actuation feel of your switches, depending on what kind of switches you use. And while some materials, like ABS plastic, are smooth, others, like PBT plastic, have a textured surface that can make the keys feel "grippy" under your fingers.

Some keyboard fanatics even prefer to custom-make their own keycaps from different materials to get just the right typing experience. If you are always gaming, working on your computer, or typing a lot in general, custom keycaps are a great way to upgrade your keyboard and make it more comfortable — and an excellent vehicle for showing off your personality.

One great example of bringing your own flair to a keyboard is the work of YouTube creator tinymakesthings. Tiny makes one-of-a-kind artisan keycaps with clay as well as a range of durable (but no less delightful) resin keycaps. She has even published a video tutorial for making your own custom artisan keycaps if you’d like to try kitting out your board in the most DIY way possible.

Did You Know? A range of Handy HHKB accessories, including such as a keyboard lid and adjustable stand, will make it even easier to get the most from your board. Click here to learn more.

How to check keycap compatibility with your mechanical keyboard

Before you buy keycaps, you’ll want to make sure they’re compatible with your mechanical keyboard. Luckily, all you need to know is what type of switch your keyboard uses.

For example, most mechanical keyboards on the market use Cherry MX style switches. (Some manufacturers simply call these MX compatible or MX style switches, since Cherry is a particular brand.) Most switches from Cherry, Gateron, Kailh, and other familiar brands are MX style. As such, you should expect full compatibility with any MX style keycap.

Remember, though, that not every switch on the market is MX compatible. Keyboards with Topre switches — such as the HHKB Professional series — also have a wide variety of keycaps available. You can buy Topre-compatible switches from the HHKB Pro shop. Otherwise, just make sure that a store lists Topre or HHKB under compatibility rather than MX style.

How to replace and install new keycaps on your keyboard

Now that you’ve purchased compatible keycaps, installing them is a simple process:

  1. Take a picture of your current keyboard. This will help you remember where every keycap is supposed to go.
  2. Use a keycap puller to remove your current set of keycaps. Take special care with large keys, such as Spacebar and Enter, as these often have stabilizer bars that you shouldn’t bend or break.
  3. Press down each new keycap onto the appropriate switch. (Consult the picture you took if you forget where any of the keys are supposed to go.) Press down firmly, but not hard enough to break anything. On most keyboards, you’ll hear a satisfying snap when the keycap is in place, though not all boards make this sound. For example, the HHKB Studio doesn’t produce an audible snap during installation. Give the key a few test presses to ensure it feels firm and locked in place.
  4. For Spacebar, Enter, and other large keys, you’ll have to put the stabilizer bar back in place. Depending on your model, you may have to hook the bar through two plastic pegs or reinsert a spring around the switch.

This process is the same whether you’re installing MX style or Topre keycaps.

The best places to buy mechanical keyboard keycaps

When you’re ready to begin the search for the perfect set of keycaps to suit your style and need, here are a few places to check out:

Each of these websites hosts a wide variety of custom keycaps to choose from. You can filter your search by material, color, price, and more. When it comes down to where to buy key caps, you’ll likely want to consider factors like shipping time and cost, selection, as well as customer service. Take a moment to peruse user reviews and shop policies before hitting that “Add to Cart” button.

The best typing experience from the keycaps down to the adjustable feet

If you are looking for the best all-around typing experience on the market, check out the full range of high-end keyboards from HHKB. Each HHKB keyboard comes with high-quality, textured PBT keycaps with an ergonomic profile to promote healthy and effective typing. Underneath each keycap lies an industry-leading Topre switch; these electrostatic switches have remained a favorite among enthusiasts for decades thanks to their uniquely satisfying feel.

Note: Information and external links are provided for your convenience and for educational purposes only, and should not be construed, or relied upon, as legal or financial advice. PFU America, Inc. makes no representations about the contents, features, or specifications on such third-party sites, software, and/or offerings (collectively “Third-Party Offerings”) and shall not be responsible for any loss or damage that may arise from your use of such Third-Party Offerings. Please consult with a licensed professional regarding your specific situation as regulations may be subject to change.

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