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A Keyboard Enthusiast's Guide to Keycap Materials Which One Reigns Supreme

A Keyboard Enthusiast’s Guide to Keycap Materials: Which One Reigns Supreme?

Ah, keycaps! Those magical pieces of plastic or metal that sit atop your mechanical keyboard’s switches, waiting to be caressed by your fingertips. But did you know that not all keycaps are created equal?

Welcome to the world of keycap materials, where the choices are vast and the stakes are, well, not exactly life-altering, but definitely important for keyboard aficionados like us! From the humble ABS to the exotic titanium, there’s a keycap material out there for everyone.

In this guide, we’ll delve deep into the fascinating universe of keycap materials, examining their properties, advantages, and disadvantages, as well as their impact on your typing experience. So, buckle up and get ready for a wild ride into the realm of keycap materials, where we’ll finally settle the age-old debate: which material reigns supreme?

I. PBT (Polybutylene Terephthalate)

A. Overview and Common Uses

PBT is a premium keycap material, highly regarded for its durability and resistance to wear. It’s often used in custom keycap sets, catering to the discerning tastes of mechanical keyboard enthusiasts. At Keysium, we have a wide variety of PBT keycaps in different styles from Anime Keycaps to Japanese Keycaps to Kawaii Keycaps

B. Pros and Cons


  • Excellent durability
  • Resistant to “shine” and surface wear over time
  • Higher heat resistance than ABS, reducing the risk of warping


  • Typically more expensive than ABS
  • Limited color range due to challenges with dyeing the material

C. Impact on Sound and Feel

PBT keycaps are known for their slightly rougher texture, which provides a tactile typing experience. The sound produced by PBT keycaps is usually higher pitched compared to ABS, creating a satisfying “clack” when typing.

D. Durability and Quality

PBT keycaps are highly durable and favored by many mechanical keyboard enthusiasts for their long-lasting quality and superior typing experience. At Keysium we don’t compromise on our quality and mainly offer premium PBT keycaps at an affordable price.

II.ABS (Acrylonitrile Butadiene Styrene)

A. Overview and Common Uses

ABS is a widely used material for keycaps due to its affordability and versatility. It is a common choice for most pre-built keyboards and various keycap sets. ABS keycaps come in a range of colors and styles, offering numerous customization options.

B. Pros and Cons


  • Budget-friendly
  • Wide variety of colors and designs
  • Easy to mold and manufacture


  • Prone to “shine” over time due to surface wear
  • Lower heat resistance compared to PBT, making it susceptible to warping

C. Impact on Sound and Feel

ABS keycaps are characterized by a smooth and glossy feel, producing a slightly lower pitched sound compared to PBT. Some users find ABS keycaps to have a more “plastic” feel, which might not be ideal for those looking for a premium typing experience.

D. Durability and Quality

While ABS keycaps are less durable than PBT, they still offer a satisfactory typing experience for casual users and those on a budget. However, for enthusiasts seeking a long-lasting and high-quality keycap, PBT might be a better option.

III. POM (Polyoxymethylene)

A. Overview and Common Uses

POM, also known as Delrin, is a less common but noteworthy keycap material valued for its low friction, smooth feel, and durability. POM keycaps can be found in specialized collections for those seeking a unique typing experience.

B. Pros and Cons


  • Low friction, providing a smooth typing experience
  • Highly durable and wear-resistant
  • Excellent dimensional stability


  • Limited availability compared to ABS and PBT
  • Generally more expensive than ABS

C. Impact on Sound and Feel

POM keycaps offer a smooth and silky feel when typing, with a sound profile that is quieter and more muted compared to ABS and PBT.

D. Durability and Quality

POM keycaps are highly durable and offer a distinct typing experience for those seeking something different from the more common ABS and PBT options.

IV. Aluminum

A. Overview and Common Uses

Aluminum keycaps are typically used in high-end custom keycap sets and artisan keycaps. They add a touch of elegance and sophistication to any mechanical keyboard setup.

B. Pros and Cons


  • Premium look and feel
  • Highly durable and resistant to wear
  • Customizable with various finishes and anodizations


  • Expensive compared to plastic keycaps
  • Heavier, potentially affecting the typing experience

C. Impact on Sound and Feel

Aluminum keycaps produce a metallic “ping” sound when typing, which can be polarizing—some users love it, while others may find it too loud or distracting. The solid, cold feel of aluminum provides a unique typing experience.

D. Durability and Quality

Aluminum keycaps are incredibly durable, long-lasting, and visually striking, making them a popular choice for keyboard enthusiasts seeking a premium look and feel.

V. Zinc

A. Overview and Common Uses

Zinc keycaps are another metal option that adds a touch of class to any keyboard setup. Zinc keycaps are often used for artisan keycaps and limited edition sets.

B. Pros and Cons


  • Luxurious appearance
  • Durable and wear-resistant
  • Customizable with various finishes and coatings


  • Expensive compared to plastic keycaps
  • Heavier than plastic keycaps, which may affect the typing experience

C. Impact on Sound and Feel

Zinc keycaps produce a distinct metallic sound, similar to aluminum but slightly denser. The solid, cool feel of zinc offers a unique typing sensation that sets it apart from plastic keycaps.

D. Durability and Quality

Zinc keycaps are highly durable and visually appealing, making them a desirable choice for enthusiasts looking to elevate their keyboard setups.

VI. Stainless Steel

A. Overview and Common Uses

Stainless steel keycaps are a rare but eye-catching option, often found in artisan keycaps or high-end custom keycap sets. They add a sleek, modern aesthetic to any keyboard.

B. Pros and Cons


  • Extremely durable and wear-resistant
  • Modern and sophisticated appearance
  • Resistant to corrosion


  • Expensive compared to plastic keycaps
  • Heavy, which may influence the typing experience

C. Impact on Sound and Feel

Stainless steel keycaps generate a sharp, metallic sound when typing. The weight and solid feel of stainless steel provide a distinct and premium typing experience.

D. Durability and Quality

Stainless steel keycaps are among the most durable and long-lasting options, making them an excellent choice for those seeking a top-tier keyboard experience.

VII. Wood

A. Overview and Common Uses

Wooden keycaps are an uncommon and artisanal option, offering a warm, organic aesthetic to any keyboard. They are often handcrafted and available in limited quantities.

B. Pros and Cons


  • Unique and visually appealing
  • Environmentally friendly
  • Available in various wood types and finishes


  • Expensive and harder to find compared to other materials
  • Susceptible to warping and damage from moisture

C. Impact on Sound and Feel

Wooden keycaps produce a softer, more muted sound compared to plastic and metal keycaps. The warm, natural texture of wood provides a comfortable typing experience.

D. Durability and Quality

While wooden keycaps are beautiful and unique, they may not be as durable as other materials, particularly in environments with fluctuating temperature and humidity levels.

VIII. Resin

A. Overview and Common Uses

Resin keycaps are typically found in artisan keycaps, allowing for intricate designs, vibrant colors, and eye-catching patterns. They are often handcrafted and highly sought-after by collectors.

B. Pros and Cons


  • Stunning designs and color options
  • Highly customizable
  • Allows for the inclusion of embedded objects and effects


  • Expensive and limited availability
  • May not be as durable as other materials

C. Impact on Sound and Feel

Resin keycaps offer a smooth, glossy feel when typing, with a sound profile similar to ABS keycaps but with a slightly denser quality.

D. Durability and Quality

While resin keycaps are visually stunning, they may not be as durable as other materials, making them more suitable for collectors and display purposes than heavy use.

IX. Less Common Materials

A. Carbon Fiber

Carbon fiber keycaps are lightweight, durable, and offer a unique appearance with their characteristic woven pattern. They are, however, rare and expensive. Checkout a reddit post by gadgett543 on the carbon fiber spacebar keycap he made.

B. Ceramic

Ceramic keycaps provide a luxurious, artisanal option, known for their smooth feel and unique designs. They are not as common as other materials and can be costly.

C. Brass

Brass keycaps are heavy, durable, and offer a luxurious look. They are not as widely available as other materials and can be expensive due to their weight and custom finishes.

D. Titanium

Titanium keycaps are lightweight, strong, and corrosion-resistant, making them an excellent choice for a premium and unique typing experience. However, they are relatively rare and expensive.

E. Glass

Glass keycaps are a visually striking and unique option, often used for artisan keycaps. They offer a smooth, cool feel when typing but may be fragile and less practical for daily use.

X. ABS vs. PBT: Which is Better?

When comparing ABS and PBT, it ultimately comes down to personal preference. PBT is often considered the superior material due to its durability, resistance to shine, and distinct sound and feel. However, budget ABS keycaps are more affordable and available in a wider range of colors and styles. GMK keycaps are normally made of high quality ABS material and are quite expensive, to make them more affordable we have GMK clone keycaps in PBT that are also more durable. Let’s take a closer look at the factors that may influence your decision:

A. Durability

PBT keycaps are generally more durable than ABS keycaps. They are less prone to wear, shine, and yellowing over time.

B. Sound

PBT keycaps have a slightly higher-pitched sound compared to ABS keycaps. Some users prefer the “thock” sound of PBT, while others may prefer the lower pitch of ABS.

C. Feel

PBT keycaps usually have a rougher texture, which some users find more pleasant to type on. ABS keycaps, on the other hand, have a smoother feel that might be preferred by others.

D. Availability and Customization

ABS keycaps are more widely available and come in a broader range of colors, styles, and designs. This makes it easier to find a keycap set that matches your aesthetic preferences. Having said that, Keysium offers over 150+ unique PBT keycap sets.

Ultimately, the choice between ABS and PBT comes down to weighing these factors and determining which material best aligns with your priorities and personal preferences.

XI. The Science Behind Keycap Materials

Keycap materials affect the typing experience in several ways. Material composition influences factors such as sound, feel, and durability. Each material has its unique set of properties, which will appeal differently to individual users based on their preferences.

A. Material Properties and Behavior

The physical properties of a material, such as density, elasticity, and hardness, will affect its behavior when used as a keycap. These properties influence factors like sound and feel when typing.

B. Surface Finish

The surface finish of a keycap can affect the typing experience. Smooth finishes can provide a sleek feel, while rougher textures may offer better grip and a more satisfying tactile sensation.

C. Material Compatibility

Compatibility with other components, such as key switches and stabilizers, is essential for optimal performance. Keycap materials should be compatible with the keyboard’s components to ensure a smooth typing experience.

XII. The Impact of Material on Keyboard Sound

Different keycap materials create unique sound profiles when typing. ABS keycaps produce a slightly lower pitched sound, while PBT keycaps have a higher pitch. Metal and wooden keycaps have their characteristic sounds as well, ranging from metallic “ping” to softer, more muted tones.

A. Factors Influencing Sound

Material composition, thickness, and the keycap’s internal structure can all affect the sound produced. Other factors, such as the keyboard’s case material and design, also contribute to the overall sound profile.

B. Personal Preferences

Sound preferences are subjective, and users may have different opinions on what constitutes a pleasant typing sound. Some may prefer the crisp sound of PBT keycaps, while others may enjoy the deeper sound of ABS keycaps or the unique tones produced by metal or wood keycaps.

XIII. Material Matters: Does Keycap Material Really Make a Difference?

Keycap material can significantly impact your typing experience. It affects factors such as sound, feel, durability, and aesthetics. While some users may not notice or prioritize these differences, mechanical keyboard enthusiasts often seek specific materials to achieve their desired typing experience.

A. Identifying Your Priorities

To determine whether keycap material matters to you, consider which factors are most important in your typing experience. Do you prioritize sound, feel, durability, or aesthetics?

B. Exploring Different Materials

By trying out different keycap materials, you can better understand their unique characteristics and determine which one best suits your preferences.

C. The Importance of Personalization

Keycap material selection is a personal decision that allows you to tailor your keyboard to your needs and preferences. Customizing your keyboard with keycaps made from your preferred material can enhance your typing experience.

XIV. The Quest for the Highest Quality Keycap

When searching for the highest quality keycap, several factors come into play. Material choice is a crucial aspect, but other elements such as manufacturing process, surface finish, and keycap thickness also contribute to the overall quality.

A. Material Selection

High-quality materials, such as PBT and metal keycaps, are often more durable and resistant to wear than cheaper alternatives like ABS.

B. Manufacturing Process

The manufacturing method, such as double-shot molding or dye-sublimation, can impact the quality and longevity of the legends on the keycaps.

C. Surface Finish and Thickness

Keycaps with a consistent surface finish and thickness often provide a more uniform and satisfying typing experience.

D. Compatibility and Performance

High-quality keycaps should be compatible with your keyboard’s switches and stabilizers, ensuring smooth performance and an enjoyable typing experience.

XV. The Most Durable Keycap: Which Material Takes the Crown?

Durability is an essential factor when selecting keycaps for your mechanical keyboard. While each material has its unique set of properties, some materials stand out for their durability:

A. PBT Keycaps

PBT is known for its resistance to wear, shine, and yellowing, making it one of the most durable keycap materials available.

B. Metal Keycaps

Metal keycaps, such as aluminum, brass, and stainless steel, are incredibly durable and resistant to wear. However, they can be heavier and more expensive than their plastic counterparts.

C. Unconventional Materials

Less common materials like titanium, carbon fiber, and ceramic may also offer enhanced durability. These materials are often more challenging to find and can be more expensive than traditional keycap materials.

XVI. Conclusion

Keycap materials play a crucial role in the overall typing experience. The most durable keycap material will depend on your specific requirements and preferences. PBT and metal keycaps are among the most durable options, but unconventional materials can also offer impressive longevity.

As a keyboard enthusiast, it’s essential to understand the differences between various materials to find the perfect keycap set that matches your preferences and style. Whether you prioritize durability, sound, feel, or aesthetics, there’s a keycap material out there that will reign supreme for you! At Keysium, we personally prefer PBT keycaps due to their durability, check out our range of custom keycaps that are also affordable and come in a variety of colors and design options.

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