6 easy steps to Clean Your Mechanical Keyboard

The safest keycap-cleaning method is to start dry and mild: disconnect the keyboard, remove loose dust with a soft clean brush and lightly wipe the installed caps with a soft cloth. For deeper cleaning, identify the material, legend and coating first. Remove caps only if you are confident, submerge them only when the maker approves it, and reinstall nothing until it is completely dry.

That method sounds less adventurous than dropping the whole set into a mystery solution for six hours. This is a benefit. Cleaning should remove the problem without applying for the position of the next problem.

Thekapco currently works primarily with PBT and polycarbonate keycaps, including dye-sublimated PBT, UV-printed PC and mixed PC/PBT constructions. Those labels still do not create one cleaning rule: artwork, coatings, adhesives, multiple materials and surface finish can make a mild wipe the correct limit for a particular set.

In this guide

1. The safest general method
2. Identify material, legend and finish
3. Quick care matrix
4. Routine cleaning while installed
5. Removing keycaps for deeper cleaning
6. PBT and ABS keycaps
7. PC and mixed PC/PBT keycaps
8. Resin, metal, wood, silicone and rubber
9. Printed, coated and shine-through surfaces
10. Drying and reinstallation
11. What not to use
12. Cleaning frequency and spill response
13. Frequently asked questions

The safest general method

Use the least aggressive method that solves the actual issue.

1. Save work, disconnect a wired keyboard or switch off a wireless one.
2. Check the keyboard and keycap maker’s care instructions.
3. Photograph the layout before removing caps.
4. Brush away loose dry debris with a soft clean brush.
5. Lightly wipe installed caps with a soft cloth. Use only the amount of moisture and cleaner approved for that product.
6. For deep cleaning, remove caps with a proper puller and keep liquids completely away from the keyboard.
7. Wash only caps confirmed safe for that method.
8. Rinse away permitted cleaner residue.
9. Allow caps to dry completely, including the underside and stem socket.
10. Reinstall, test every key and watch for binding or slow return.

Thekapco’s public customer guidance follows the same conservative pattern: disconnect before cleaning, remove loose debris with a soft brush or suitable air tool, keep liquid away from electronics, lightly wipe caps with a soft cloth and use a mild deeper-cleaning method only when removal is appropriate.

Clean the caps, not the electronics

Keycaps may be removable; the keyboard beneath them contains switches, a plate, PCB, connectors and sometimes a battery. A method safe for loose plastic caps is not permission to apply liquid to the exposed board.

If a spill enters the keyboard, disconnect power if safe, stop normal cleaning and follow the keyboard maker’s spill/service instructions. Do not keep testing a wet powered device to see whether optimism has improved conductivity.

Identify material, legend and finish first

Before choosing water, soap or any cleaner, identify:

• main body material: PBT, ABS, PC, resin, metal, wood, silicone, rubber or mixed;
• construction: single material, doubleshot, mixed sections, stem insert or attached decoration;
• legend method: dye-sub, doubleshot, UV print, pad print, laser method or unknown;
• surface: matte mould texture, polished finish, paint, coating, clear coat or plated metal;
• special features: translucent area, adhesive, inlay, hand-painted detail or moving part;
• maker’s specific care limit.

If any of these is unknown, use a soft dry cloth and ask the maker before escalating. “It looks like plastic” is not a complete chemical compatibility report.

Separate body and artwork

A plastic body may tolerate a method that its surface print or coating does not. The legend can fail before the cap. Treat the most sensitive confirmed component as the cleaning limit.

Keycap cleaning matrix

This table is a starting hierarchy, not a promise for every product. The maker’s instructions win.

Routine cleaning while keycaps are installed

Routine care should prevent grime from becoming a restoration project.

Disconnect first

Unplug the cable or switch the keyboard off according to its manual. Move drinks and loose metal tools away. If the board contains a rechargeable battery, do not open, heat, puncture or compress it during cleaning.

Remove loose debris

Use a soft clean brush between keys. Hold the board at a safe angle only if the maker permits it and support its weight; do not shake a heavy keyboard over the floor. An appropriate air duster may help, but follow the product instructions, keep pressure controlled and avoid driving debris deeper into switches.

The previous article claimed all vacuum cleaners create dangerous static and all canned air can cause permanent condensation damage. Those statements were too absolute. Use only tools approved for the keyboard and do not improvise with high heat, wet air or excessive pressure.

Wipe the top surfaces

Use a clean soft cloth. If the product allows a damp cloth, make it lightly damp rather than dripping and keep moisture away from gaps. Wipe without aggressive scrubbing, then dry the surface.

Razer’s current care guidance for its PBT upgrade caps is notably restrained: use a damp cloth and lightly wipe each keycap. That is a useful reminder that “deep clean” is not the automatic starting setting.

Removing keycaps for deeper cleaning

Take a clear top-down photo, confirm the keyboard supports removable keycaps and use a proper keycap puller. Ordinary 1u keys usually lift straight up; stabilised keys such as Space, Enter, Backspace and long Shift need model-specific care.

Follow How to Change Keycaps Safely for the complete removal and reinstallation process.

Keep groups organised

Separate rows and wide keys in a tray. Sculpted caps can share a width while using different angles. Organisation also prevents a washed 1u cap from joining the household plumbing on an unplanned journey.

Inspect before washing

Look for cracks, loose inserts, lifting paint, damaged clear coat or attached decorations. Do not soak a compromised or multi-part cap. Photograph any suspected defect before cleaning if a warranty or support claim may be required.

Cleaning PBT keycaps

For ordinary uncoated PBT caps with a maker-approved washable legend, mild soap and lukewarm water after removal is a common method. GMK’s product-specific FAQ for its WoB caps instructs users to remove them with a puller, wash them with warm soapy water and air-dry completely before reattaching.

That guidance applies to the stated product. It does not prove every dye-sublimated, coated, mixed-material or custom-finished PBT cap should be soaked.

A conservative PBT wash

1. Confirm the set is ordinary washable PBT and inspect for mixed parts.
2. Use a clean container reserved for the task.
3. Add lukewarm water and a small amount of mild soap approved for the set.
4. Wash gently with a soft cloth or fingers; avoid abrasive pads and hard brushes.
5. Rinse until no cleaner residue remains.
6. Drain with the openings downward.
7. Air-dry completely before installation.

Do not publish or rely on one fixed soak time. Soil level, construction and maker instructions differ, while a longer soak is not automatically a better clean.

Cleaning ABS keycaps

Ordinary uncoated ABS caps may also be cleaned with mild soap and lukewarm water when the maker approves it. Keep water away from heat extremes and avoid aggressive solvents or abrasives that can damage the plastic or surface.

ABS surface shine from long use may be physical polishing rather than removable oil. Cleaning can remove grime; it cannot restore mould texture that has worn smoother. Scrubbing harder may polish it further.

Doubleshot does not make the whole cap invulnerable

A doubleshot legend is formed from another moulded component rather than surface ink, which gives it a strong wear advantage. The surrounding body can still scratch, polish, stain or react to an unsuitable cleaner. Durable legend construction is not a chemical shield around the whole key.

Cleaning PC and mixed PC/PBT keycaps

Polycarbonate can be clear, tinted or translucent, making fine scratches and cleaner haze especially visible. Use a soft non-abrasive cloth and avoid assuming that a transparent engineering plastic tolerates household solvents.

SABIC’s LEXAN polycarbonate-sheet guidance recommends mild soap with lukewarm water and warns against abrasive, highly alkaline and several aggressive solvent cleaners. A finished keycap can add UV printing, coatings, pigment, adhesives or PBT sections, so product instructions must remain stricter than the general resin guidance.

UV-printed PC needs surface-first care

Thekapco uses UV printing on some full-PC caps. The print sits at the surface, so do not scrub it, scrape it or test solvents on it. Start with a soft dry or lightly damp cloth and seek exact product guidance for any stain that remains.

Mixed PC/PBT caps

PC/PBT does not define one bonding method or layer map. Clean to the most sensitive section, print, joint or coating. Do not soak merely because one component would tolerate water independently.

For construction differences, read PC, PC/PBT and Pudding Keycaps.

Cleaning resin keycaps

Resin artisans can include casting resin, paint, clear coats, embedded parts, stem inserts or hand-finished surfaces. There is no universal resin bath.

Use a soft dry cloth or gentle dust blower as the starting point. Support the cap by its body rather than delicate protrusions. For fingerprints or stains, use only the maker’s approved spot-cleaning method. Avoid soaking, alcohol, acetone, abrasive polish and heat unless the maker explicitly instructs otherwise for that exact cap.

Clear resin may change appearance through scratches, coating wear or ageing that washing cannot reverse. Treat a valuable artisan like a finished collectible, not an ordinary spoon.

Cleaning metal keycaps

Metal keys may be bare, anodised, plated, painted, polished, coated or combined with a plastic stem insert. These finishes respond differently.

Start with a clean soft dry cloth. Remove fingerprints gently. If more cleaning is needed, follow the maker’s instructions for the exact finish. Keep moisture away from joints and inserts, and dry immediately where permitted.

Do not use metal polish on a coated or plated cap unless explicitly approved. Polish is designed to alter a surface; sometimes it succeeds more thoroughly than the owner intended.

Cleaning wooden keycaps

Wood responds to moisture and finish conditions differently from moulded plastic. Dust with a soft dry cloth or brush. Avoid soaking, prolonged dampness, steam and heat. Use only a cleaner or conditioner approved by the maker for that wood and finish.

A wooden cap can also use a separate stem insert or adhesive. Protect the whole assembly and do not assume furniture-care products belong on a small keyboard component.

Cleaning silicone and rubber keycaps

Silicone or rubber caps may be washable, but pigment, surface print, coating, texture and adhesive still vary. Start with a soft cloth. If the maker approves washing, use its temperature, cleaner and drying method.

Avoid oils, solvents and abrasive scrubbing unless specified. Some soft surfaces attract dust after oily residue is applied, turning one cleaning session into a subscription.

Printed, coated and shine-through surfaces

Dye-sublimated legends

Dye-sublimation places dye into a compatible surface rather than adding a separate raised label. The construction is durable in ordinary use, but the cap’s body, texture and any additional coating still need appropriate care.

Pad, screen and UV printing

Surface printing can be more directly exposed to abrasion and chemicals. Use gentle pressure, soft cloths and maker-approved cleaners. Do not spot-test in a visible legend area.

Shine-through caps

Shine-through describes light transmission, not a cleaning method. The legend may be moulded, coated, laser-treated or produced another way. Identify the exact construction before washing.

Hand-painted and coated artisans

Treat the finish as the controlling material. Dust gently and ask the maker before using moisture. If the coating is lifting, do not continue cleaning; document the condition and seek support.

Our Dye-Sublimation vs Doubleshot guide explains why legend method and cap material must be evaluated separately.

Drying keycaps completely

Visible dryness on top is not enough. Water can remain inside the underside cavity, stem socket and stabiliser mounts.

1. Rinse away approved cleaner residue.
2. Shake each cap gently over the container, not over electronics.
3. Place caps opening-down on a clean absorbent cloth in a ventilated area.
4. Turn or inspect wide keys where water may collect.
5. Allow enough time for complete air drying; do not rely on one universal number of hours.
6. Check every underside closely before reinstallation.

Avoid ovens, direct high heat and hot hair dryers. Heat can distort plastic, damage coatings or affect adhesives. Patience is cheaper than a new Spacebar.

Reinstall and test

Use the layout photo and row map. Align each cap with the correct stem and press straight down without excessive force. Treat stabilised keys separately and follow the board’s instructions.

Test every key for smooth travel and return. If a key binds, remove it and inspect alignment rather than pressing harder. If moisture appears anywhere, disconnect the keyboard and allow more drying time.

What not to use without explicit approval

• acetone or nail-polish remover;
• fuel, paint thinner or strong solvent;
• bleach or highly alkaline cleaner;
• abrasive powder, rough sponge or polishing compound;
• hot or boiling water;
• dishwasher, washing machine, oven or microwave;
• undiluted household disinfectant;
• alcohol on unknown prints, coatings, PC or resin;
• denture tablets as a universal keycap cleaner;
• lubricant as a surface cleaner;
• liquid directly on the keyboard, switches or battery area.

The word “plastic” covers many materials and finishes. A chemical safe for one test coupon may be wrong for the printed, coated product in your hand.

How often should keycaps be cleaned?

There is no mandatory calendar. Clean when dust, oil or debris becomes noticeable and use routine light care to avoid frequent deep washing.

Factors include:

• daily use and shared users;
• food, pets and open windows;
• skin oils, lotions and hand products;
• light or dark colourways that reveal marks differently;
• textured, glossy or translucent surfaces;
• storage and dust-cover habits.

A light weekly or occasional wipe may be enough in one room; another board may need attention sooner. Fixed “every one to three months” claims sound tidy but are not more useful than looking at the actual keyboard.

What to do after a spill

A spill is an electronics event, not an ordinary keycap wash.

1. Disconnect external power immediately if safe.
2. Switch off according to the manufacturer’s emergency guidance.
3. Do not continue typing or charging.
4. Move liquid away from ports without forcing it deeper.
5. Follow the maker’s spill instructions or contact qualified service.
6. Do not open, heat or puncture a battery.

Removing and cleaning caps may be part of later service, but it does not prove the board beneath them is dry or safe.

Final cleaning checklist

• ☐ I disconnected or switched off the keyboard.
• ☐ I identified the cap material, legend, coating and mixed parts.
• ☐ I checked the exact maker’s care instructions.
• ☐ I started with a soft dry or lightly damp cloth.
• ☐ I kept all liquid away from the keyboard electronics.
• ☐ I used a proper puller and photographed the layout before removal.
• ☐ I submerged only caps confirmed safe for washing.
• ☐ I avoided heat, abrasives and unapproved solvents.
• ☐ Every underside and stem socket is completely dry.
• ☐ I reinstalled and tested every key.

Frequently asked questions

Can I wash PBT keycaps in water?

Many ordinary removable PBT caps can be washed with mild soap and lukewarm water when their maker approves it. Mixed materials, coatings, surface printing and artisans may need a gentler method.

Can I wash ABS keycaps?

Ordinary uncoated ABS caps may be washable with mild soap and lukewarm water under product instructions. Avoid hot water, abrasives and unapproved solvents.

Can I use isopropyl alcohol on keycaps?

Do not treat it as universal. Alcohol may affect some plastics, prints, coatings, clear parts or adhesives. Use it only when the exact product maker approves the concentration and method.

Can I soak UV-printed keycaps?

Do not assume so. UV printing is a surface process. Start with a gentle dry or lightly damp wipe and follow the product-specific care guidance.

How long should keycaps dry?

Until they are completely dry inside and out. Material, geometry, airflow and humidity vary, so one fixed number of hours is unreliable. Inspect the underside and stem socket before installation.

Can I put keycaps in a dishwasher?

Do not. Heat, detergent, spray pressure and movement can distort caps or damage surfaces. Use a controlled hand-cleaning method approved for the product.

Why are my keycaps still shiny after cleaning?

The shine may be physical polishing from use rather than surface oil. Cleaning removes grime but cannot restore mould texture that has worn smooth.

How should I clean an artisan keycap?

Start with gentle dry dust removal and follow the maker’s instructions. Resin, paint, clear coat, metal finish, wood, inserts and adhesives vary too much for one universal wash.

Can I clean the switches with the same method?

No. Switches and the keyboard electronics need their own manufacturer-approved service method. Do not introduce keycap wash water or cleaner into them.

Article method and source note

Written by: Thekapco Editorial Team

Technical review: Timo, Senior Executive at Thekapco

Publication date: 29 September 2026

Last reviewed: 15 September 2026

This guide combines Thekapco’s public care guidance and approved experience with PBT, full-PC, mixed PC/PBT, dye-sublimation and UV printing. It deliberately starts with the least aggressive method and defers to the exact product maker whenever material, finish or construction is uncertain.

Primary and product references reviewed:

• Thekapco — FAQ and Product Care
• Razer — PBT Keycap Upgrade Set Support and FAQs
• GMK — How do I clean these GMK WoB keycaps?
• SABIC — LEXAN polycarbonate cleaning recommendations (PDF)

Coverage benchmark reviewed the previous Thekapco cleaning and maintenance articles plus current manufacturer guides. This revision keeps the practical beginner sequence while removing universal solvent, soaking, tool and drying claims. The material-specific record is consolidated here to avoid publishing two pages for the same cleaning decision.

Timo helped initiate Thekapco’s keycap direction in 2021 and contributes first-hand experience in keycap materials, printing, compatibility, sampling, quality control and customer support.