Quick answer: ABS keycaps are made from Acrylonitrile Butadiene Styrene, a lightweight thermoplastic that takes colour better than any other keycap material. They feel smooth, sound brighter and higher-pitched than PBT, and develop a shine on frequently used keys over time. Nearly every premium designer keycap set — GMK, KeyKobo, and most artisan-grade doubleshot sets — is ABS, precisely because the colour accuracy is unmatched.

What ABS actually is, and why keycap makers use it

ABS is a thermoplastic polymer used across consumer electronics housings and automotive trim. In keycaps it is injection moulded: heated pellets are forced into a precision mould that forms the keycap shell and the MX stem mount underneath.

Three properties make it the material of choice for high-end sets:

Property	Why it matters for keycaps
Excellent colour fidelity	ABS holds precise, saturated, repeatable colours — critical for designer colourways
Low mould shrinkage	Legends stay crisp and keycaps stay dimensionally accurate
Easy doubleshot moulding	Two-layer legends that never wear off are far simpler to produce in ABS
Smooth surface finish	Produces the soft, low-friction feel many typists prefer

PBT shrinks more unpredictably in the mould, which is why PBT sets are more often dye-sublimated than doubleshot, and why PBT colours skew slightly muted. That single manufacturing difference explains most of what separates the two materials in practice.

ABS vs PBT, in one paragraph

ABS is smoother, brighter-sounding, more colour-accurate, usually cheaper, and shines with use. PBT is more textured, deeper-sounding, more shine-resistant, and harder to produce in complex colourways. Neither is objectively better — high-end sets exist in both.

We have covered this comparison at length elsewhere, so this guide focuses on ABS itself. For the full breakdown see ABS vs PBT keycaps, the difference between ABS and PBT, and ABS vs PBT for aluminum keyboards. If PBT is where you are leaning, start with what PBT keycaps are.

Doubleshot vs printed ABS: the distinction that actually matters

"ABS keycaps" covers everything from a $15 budget set to a $150 designer set. The gap between them is mostly legend construction and wall thickness — not the plastic.

• Doubleshot — two separate plastic layers moulded together, so the legend is solid plastic running through the cap. It physically cannot wear off. This is what premium ABS sets use, and it is the main reason ABS dominates the high end.
• Triple-shot — three layers, allowing multi-colour legends or novelties in a single cap. Sets like the KeyKobo Nichirin and KeyKobo Dolch use this.
• Pad-printed or laser-engraved — the legend sits on the surface. Cheap to produce, and it will eventually wear off on your most-used keys. Common on budget prebuilt keyboards.

If you are buying ABS, buy doubleshot. A printed ABS cap combines the drawback of ABS (shine) with a drawback of its own (fading legends), and there is no reason to accept both.

Wall thickness matters too: thicker ABS sounds fuller and deeper and resists shine longer than the thin caps that ship with budget boards. Our ABS double-shot keycaps collection is built around thick doubleshot sets for this reason.

The shine question: what causes it and how to slow it down

ABS's one genuine drawback is that heavily used keys develop a glossy patch. This is not wear in the sense of damage — nothing is lost. Skin oils plus repeated friction gradually polish the textured surface flat, and a polished surface reflects light.

Expect it first on WASD, spacebar, Enter, and shift. On a thin budget set with heavy daily use it can appear within months; on a thick doubleshot set with normal use it may take a year or more, and some people never find it objectionable.

What actually helps:

• Buy thicker caps. There is more textured material to polish through.
• Wash your hands before typing. Skin oil is the primary accelerant.
• Clean the set periodically. Warm water and mild soap removes accumulated oil — see how to clean your keycaps.
• Type lighter. Bottoming out with force accelerates it. A tactile switch can help here, since the bump signals actuation and discourages mashing.

What does not help: keycap coatings sold as shine-proofing generally wear unevenly and look worse than honest shine. Many enthusiasts eventually decide the patina on a well-used set is a feature. If it genuinely bothers you, buy PBT dye-sub keycaps instead — this is the one clear case where PBT is the correct answer.

How ABS changes your keyboard's sound

ABS is lighter and less dense than PBT, so it produces a brighter, higher-pitched, more resonant sound. PBT skews deeper and more muted.

That makes ABS a strong pairing with builds you want to sound lively — high-fiberglass clacky switches in a stiff case, for example, where ABS reinforces the pop. If you are chasing a deep thock, ABS is working against you and PBT plus thocky switches is the better combination.

Thickness modulates this substantially: thick ABS sits much closer to PBT in pitch than thin ABS does.

Choosing an ABS keycap set

Check the kit covers your layout. This is the most common purchase mistake. A base kit may not include the 1.75u shift, split spacebar, or stepped caps lock your board needs. Confirm against our keyboard layout guide, and check whether all keycaps fit all switches.

Pick a profile deliberately. Cherry profile is the most common and the safest default — see the Cherry profile keycaps collection. Profile affects typing comfort more than material does.

Match the sound you are building toward, as above.

Buy doubleshot, and prefer thicker walls.

Ready to browse? Start with the ABS double-shot keycaps collection — including KeyKobo Beige, KeyKobo R.C 759, and KeyKobo Soju R2 — or see the full keycaps range. Our guide to buying a keycap set walks through kit compatibility in detail.

Q&A: ABS keycaps

Are ABS keycaps better than PBT keycaps?

Neither is universally better. ABS offers superior colour accuracy, a smoother surface, a brighter sound, and easier doubleshot production, which is why most premium designer sets are ABS. PBT is more textured, deeper-sounding, and more resistant to shine. Choose based on the sound and look you want, not on a quality ranking.

Do ABS keycaps get shiny over time?

Yes. Skin oils and repeated friction gradually polish the surface on frequently used keys such as WASD, spacebar, and Enter. Thicker doubleshot ABS resists this considerably longer than thin budget caps, and regular cleaning slows it further, but it cannot be prevented entirely.

Why do expensive keycap sets use ABS if it shines?

Because ABS holds colour far more accurately than PBT and is much easier to doubleshot mould, which is what designer colourways and complex legends require. Enthusiasts accept the shine as a trade for colour fidelity and legends that never wear off.

How long do ABS keycaps last?

Structurally, many years — ABS keycaps rarely crack or break under normal use, and doubleshot legends never fade. What changes is the surface finish, which begins to shine on high-use keys anywhere from a few months to over a year depending on thickness, typing force, and cleaning habits.

Are ABS keycaps good for gaming?

Yes. The smooth low-friction surface suits fast finger movement across WASD, ABS takes translucent and shine-through legends well for RGB builds, and sets are relatively affordable to replace. The trade-off is that gaming clusters are exactly where shine appears first.

Are doubleshot ABS keycaps worth the extra cost?

Yes, if you plan to keep the keyboard. Doubleshot legends are moulded from a second layer of plastic and cannot wear off, while printed legends on cheaper ABS sets fade on the keys you use most. Doubleshot sets are also typically thicker, which improves sound and delays shine.

Do ABS keycaps make a keyboard louder?

Not louder exactly, but higher-pitched. ABS is lighter and less dense than PBT, producing a brighter, more resonant sound versus PBT's deeper and more muted profile. Thicker ABS sits closer to PBT in pitch than thin ABS does.

How do I clean ABS keycaps without damaging them?

Remove the keycaps, soak them in warm water with a small amount of mild dish soap, agitate gently, rinse, and let them dry completely before reinstalling. Avoid hot water, alcohol, and abrasive cleaners, which can warp ABS or dull the surface.