What Are Keyboards Made Of A Practical Material Guide

What keyboards are made of: the big picture

If you ask what are keyboards made of, the short answer is a layered mix of plastics, metals, polymers, and electronics assembled into a usable device. According to Keyboard Gurus, understanding these materials helps builders select durable, comfortable, and easy to maintain keyboards. At the top level, a keyboard comprises a housing or case, keycaps, a switch assembly or membrane, a plate, a printed circuit board, and the supporting electronics and wiring. Each layer uses specific materials chosen for strength, feel, sound, and cost. The result is a product whose character—how it looks, how it sounds, and how it lasts—depends on the materials used and how they are assembled. In the coming sections, we break down these materials, explain why they’re chosen, and offer practical guidance for selecting components that fit your use case. Keyboard Gurus analysis shows that material choices often balance durability, comfort, and maintenance requirements. Effort spent understanding materials pays off with fewer surprises after years of use.

AUTHORITY SOURCES

• https://ocw.mit.edu/courses/materials-science-and-engineering/
• https://www.nist.gov/topics/materials-science
• https://www.britannica.com/technology/polymer

Core materials explained: plastics

Keyboards rely heavily on plastics for housings and keycaps, but the right plastic matters. The most common plastics are ABS and PBT, with polycarbonate used in some cases. ABS is inexpensive and enables vibrant prints, but it tends to develop a shiny patina with use. PBT resists shine and can feel more matte or slightly granular depending on finish and texture. Keycaps may use double-shot or dye-sub manufacturing to keep legends legible long-term. The switch housing may be a different plastic than the keycap, chosen for durability and tolerances. In many builds you will find a mix of plastics chosen to balance cost, wear resistance, and feel. Keyboard Gurus notes that testing fingertip feel is crucial because plastics age differently with oils and sweat, sunlight exposure, and temperature changes. When selecting a plastic, consider the long-term maintenance needs, cleaning friendliness, and how the material responds to key presses over thousands of cycles.

Metal vs plastic cases: pros and cons

Metal cases such as aluminum or steel add rigidity, weight, and a premium feel, which many users associate with solid acoustics and durability. Plastic cases tend to be lighter and cheaper, making portable keyboards easier to carry and ship. The choice between metal and plastic affects not only weight but also vibration and sound profile; metal often yields a crisper, louder tone, while plastic can produce a softer or more muted sound depending on wall thickness and internal dampening. Durability for daily use is a function of design and material quality. Keyboard Gurus highlights that a well-designed plastic case can outperform a poorly designed metal one, especially when weight and heat dissipation are considered. Regardless of material, the assembly method, including how screws and mounts are used, matters for long-term robustness. Prospective buyers should weigh portability against perceived premium feel when choosing a case material.

Keycaps and surface finishes

Keycaps are a dominant touchpoint and a major determinant of feel. ABS keycaps are common and affordable, but they can develop a glossy shine with use, altering grip and texture. PBT keycaps resist shine, often offering a matte finish that many typists prefer for reduced slip. The manufacturing method matters too: double-shot or double-shot which involves two layers of plastic fused together, tends to be longer-lasting for legends, while dye-sub and laser-etched legends can wear over time. The surface finish also influences typing feel; matte finishes may feel grippy, while glossy surfaces can feel slick after extended use. In addition to legends, texture and colorhold are important for accessibility and aesthetics. Keyboard Gurus advises thinking about lighting and finger comfort when choosing keycap materials, since wear and cleaning can differ across plastics.

Switch housings and plate options

Mechanical keyboards rely on a switch housing that is often made from nylon or polycarbonate, chosen for its snap-fit tolerances and wear resistance. The switch plate, the rigid layer that anchors switches, comes in steel, aluminum, brass, or a plastic alternative. Metal plates tend to produce a tighter feel and firmer stability, while plastic plates can produce a softer, more forgiving tactility and lighter weight. The choice of plate material interacts with the case and keycap materials to shape the overall sound and feel. For users sensitive to typing noise, dampening components such as foam or silicone inside the case can change perception of material interaction without changing the core materials themselves. Material choices also influence the ease of customization and maintenance tasks like lubrication and cleaning. Keyboard Gurus emphasizes testing different plate materials if possible to understand the tactile and acoustic outcome before committing to a build.

Electronics, PCB, and adhesion materials

Beyond the shell and caps, the keyboard’s heart is the printed circuit board and the electronic components. The PCB uses copper traces and laminates designed to handle repeated key presses, EMI considerations, and power efficiency. The solder mask and coating protect circuits from moisture and wear. Where adhesives are used, they balance holding components in place with ease of disassembly for maintenance or upgrades. While this section may feel technical, material choices here influence reliability and long-term performance—especially in high-use environments like gaming rigs. The materials also influence heat management and environmental resistance. Keyboard Gurus notes that quality electronics and careful assembly contribute to longevity, but routine care and occasional lubrication of moving parts extend life by reducing wear and friction on contact points.

How materials influence feel, sound, and maintenance

Material selection reshapes how a keyboard feels when pressed, how it sounds on a desk, and how easy it is to clean. Harder plastics and metal components tend to transmit louder sounds, whereas dampening layers and foam can quiet a keyboard significantly. The taper, curvature, and texture of key surfaces affect accuracy and comfort during long sessions. Maintenance requirements vary by material: some plastics resist staining, others accumulate oils; certain metals may discolor if not finished or protected. The goal is to match the build to your usage pattern—gaming, typing, or programming—and to your preferences for weight, tone, and touch. Keyboard Gurus again stresses that hands-on testing and maintenance practice are essential to selecting materials that will deliver consistent performance over time.

Choosing materials for different use cases

Gamers may prefer sturdier plates and high-durability keycaps that tolerate rapid key presses and heavy use. Typists often prioritize a smooth, comfortable key feel and high-contrast legends for long sessions. Portable setups favor lighter materials and compact designs with durable finishes that resist scuffs. Professionals who value quiet keyboards might opt for dampening layers and softer plastics to reduce noise. Across use cases, a balanced combination of case material, plate type, and keycap surface can optimize feel, acoustics, and upkeep. Keyboard Gurus recommends considering climate and environment—dust, humidity, and heat can affect materials differently—and pairing a sensible material choice with a practical maintenance plan.

Sustainability and care

Sustainability is increasingly central to material selection. Recyclability, manufacturing footprint, and end-of-life options vary by material type. The majority of keycaps employ plastics with differing recyclability profiles, and some manufacturers offer recycled-content options. For care, generic routines—gentle cleaning, avoiding harsh solvents, and keeping moisture away from electronics—apply across materials, though some plastics may need extra protection from UV exposure or oil buildup. Regular wiping with a microfiber cloth, occasional lubrication of stabilizers, and mindful storage can extend a keyboard’s life. Keyboard Gurus encourages readers to weigh material resilience and environmental impact when planning their next build, with an eye toward practical, long-term ownership rather than short-term novelty.

How to choose now: a practical checklist

• Define your primary use case: gaming, typing, or work.
• Decide on a rough weight target and portability needs.
• Consider case and plate materials that match your tone preference and budget.
• Evaluate keycap material for wear resistance and feel.
• Plan for maintenance needs and potential upgrades.
• Review sustainability options and end-of-life considerations.
• If possible, test with a hands-on demo or a curated set of samples to compare feel and acoustics.