ABS vs PBT Keycaps: How to Choose the Right Keycap Material

Quick Answer

If you want maximum longevity and a texture that resists shine, choose PBT keycaps. If you prefer a lighter feel, vibrant colors, and a lower price, ABS keycaps are a solid choice—just expect them to polish glossy over time.

Choosing between ABS and PBT keycaps comes down to two main factors: durability and feel. Both materials are common in the mechanical keyboard world, but they behave quite differently after months of typing and gaming.

In this guide, we'll break down the material differences, explain why PBT keycaps resist shine better, and give you clear decision rules—plus a look at some keycap sets that use each material.

ABS Keycaps: What to Expect

ABS (Acrylonitrile Butadiene Styrene) is the most widely used keycap plastic. It's cheaper to produce, which makes it a common choice for stock keyboards and budget-friendly keycap sets. ABS keycaps are often thinner, so they can feel a bit more 'plasticky' under your fingers.

One of the most noticeable traits of ABS is that it develops a glossy shine over time—often called 'ABS shine.' This happens because the natural oils from your fingers slowly polish the surface. This isn't a defect; it's simply how the material wears. If you type a lot, you'll see shine on the most-used keys within months.

On the plus side, ABS takes color very well, which is why many bright and multi-color sets are made from it. It's also lighter, so it can be the right choice if you prefer a less hefty feel while typing.

• Expect shine on heavily used keys after a few months of daily use.
• Usually more affordable and available in a wider range of colors.

PBT Keycaps: The Long-Term Pick

PBT (Polybutylene Terephthalate) is a tougher, more textured plastic. It's more resistant to wear and doesn't develop that glossy shine nearly as fast as ABS. Many enthusiasts prefer PBT for its slightly grainy feel, which can help with grip and tactile feedback.

PBT is also more resistant to heat and chemicals, so it holds its shape and color better over time. The trade-off is that PBT is more expensive to manufacture, so keycap sets in this material tend to cost a bit more.

When you're looking for a keycap material that will still look good after a couple of years, PBT is the clear winner. It's a solid investment for anyone who uses their keyboard for long typing sessions or gaming.

• PBT resists shine and stays matte much longer than ABS.
• Expect a slightly rougher texture that some find more comfortable.

Practical Fit Guidance: Profiles and Compatibility

Material is just one part of the puzzle—you also need to think about the profile and stem compatibility. The 'Cherry profile' is a popular low-profile shape that many ABS and PBT sets use, like the ABS Cherry Profile Blank Keycaps. It offers a comfortable typing angle and works on most mechanical keyboards with MX-style switches.

Other profiles like KAM and KAT have higher, more sculpted shapes that can give a different feel. KAM is a uniform profile, meaning all rows have the same height, which some people prefer for consistency. KAT is similar but has a slightly more sculpted shape that some users find more ergonomic.

Before buying, check your keyboard's layout and switch type. Most keycaps with MX-compatible stems will fit, but some specialty keyboards like HHKB use different mounts. Always verify that the set you're looking at is compatible with your board.

• Cherry profile is low and comfortable for most typists.
• KAM and KAT are taller and uniform—good for those who like a shorter reach.

Balancing Cost and Features

Your budget is a big factor. ABS keycaps are generally cheaper, which is why many pre-built keyboards come with them. If you're looking for a quick and affordable way to change the look of your keyboard, an ABS set can be a great value.

PBT sets cost a bit more, but they last longer and keep their appearance. If you're building a keyboard you plan to keep for years, the extra money for PBT is often worth it. The price difference is usually small—sometimes just a few dollars—so the longevity alone can justify the upgrade.

Remember, the material is just one part of the equation. Also consider the profile, colorway, and legend quality (legends are the printed labels on the keys). A good set balances all these factors.

• Set a budget and weigh long-term durability against upfront cost.
• Read reviews for legend quality—some printed legends fade faster than others.

Decision Rules for Choosing Between ABS and PBT

• If you want maximum durability and minimal shine: Choose PBT keycaps. They resist the polished glossy look that ABS develops over time, so they'll look better for longer. Go with PBT if you plan to use the keyboard heavily for years.
• If you prefer a lighter feel and lower price: ABS keycaps are usually cheaper and lighter. They're also great for colorful sets, but be ready to accept shine after months of use. Pick ABS if you want to save money or love a certain colorway.
• If you like a textured grip: PBT has a slightly grainy surface that many find easier to grip. ABS tends to feel smoother and more slippery. PBT is better for sweaty hands or long gaming sessions.

Keycap Sets We Recommend

• ABS Cherry Profile Blank Keycaps: These premium ABS Cherry Profile Blank Keycaps are designed for enthusiasts and DIY aficionados, offering a sleek, minimalist look while providing a smooth and comfortable typing experience. The Cherry profile ensures a low, ergonomic profile that enhances typing speed and accuracy. High-Quality ABS Material: Durable and resistant to wear and shine, ensuring... If you like the feel of ABS and want a simple, clean look, these blanks are a cost-effective way to try the material. They're also a good pick if you're learning touch typing.
• KAT Milkshake PBT Profile Keycaps: KAT Milkshake PBT Profile Keycaps, designed by Biip, bring a delightful blend of color and functionality to your mechanical keyboard. These keycaps are crafted from high-quality PBT material, ensuring durability and resistance to wear. The KAT profile offers a comfortable and ergonomic typing experience, making it ideal for both gaming and daily use. With vibrant pastel colors inspired by milkshakes, this set adds a... If you want the durability of PBT but don't want to sacrifice style, this set proves you can have both. The KAT profile is also a great middle ground if you're new to taller keycap profiles.

Which Is Right for You?

Best for

• Typists who want a set that stays matte and resists shine for years—pick PBT.
• Gamers who prefer a slightly rougher texture and longer-lasting legends—PBT is a smart upgrade.

Not for

• Budget-minded builders who want a low-cost color swap—ABS works fine and is lighter.

The choice between ABS and PBT boils down to your priorities: durability and texture vs. cost and color variety. Use the decision rules above, and you'll pick a set that fits your typing style and budget.