How to Tell If Keycaps Are PBT or ABS

When choosing keycaps for your keyboard, understanding the material they’re made from is crucial. The two most common types of keycap materials are PBT (Polybutylene Terephthalate) and ABS (Acrylonitrile Butadiene Styrene). Each has its own characteristics, advantages, and disadvantages. Here’s how you can tell if your keycaps are PBT or ABS:

1. Check the Texture and Feel

• PBT Keycaps: Typically, PBT keycaps have a matte finish and a slightly rougher texture compared to ABS keycaps. They feel more substantial and less slippery, which can provide a better typing experience over time. If you run your fingers over the surface and it feels slightly textured, it's likely PBT.

• ABS Keycaps: ABS keycaps generally have a smoother, shinier surface and a more slippery feel. Over time, ABS keycaps can develop a glossy, worn-out look due to the oils from your fingers.

2. Inspect the Keycap Legends

• PBT Keycaps: PBT keycaps often use dye-sublimation for legends, which means the legends are dyed into the plastic. This process makes the legends less prone to fading and wear. If the legends on your keycaps look well-defined and are not showing signs of wear, they might be PBT.

• ABS Keycaps: ABS keycaps usually use pad printing or laser engraving for legends. These methods are more prone to fading and can wear off over time. If you notice the legends are starting to fade or chip away, your keycaps are likely ABS.

3. Consider the Keycap Thickness

• PBT Keycaps: These are often thicker and more durable. They usually feel sturdier and more solid when you press them.

• ABS Keycaps: Generally thinner and can feel less durable compared to PBT keycaps. If your keycaps feel light and somewhat flimsy, they might be ABS.

4. Look for Keycap Warping

• PBT Keycaps: Due to their higher durability, PBT keycaps are less likely to warp or develop a shine over time. They maintain their shape and texture better under extended use.

• ABS Keycaps: ABS keycaps can warp or develop a shiny appearance with heavy use. If your keycaps show signs of wear and tear or have become noticeably shiny, they are likely ABS.

5. Consult the Manufacturer or Product Information

The easiest and most reliable way to determine the material of your keycaps is to check the product specifications provided by the manufacturer or retailer. They usually provide detailed information about the keycap material.

Conclusion

Understanding whether your keycaps are PBT or ABS can help you make informed decisions about durability, typing feel, and maintenance. PBT keycaps are known for their durability and resistance to wear, while ABS keycaps are often more affordable but less durable. By paying attention to texture, legends, thickness, and wear, you can easily identify the material and choose the right keycaps for your needs.