[Keeper's Edition] Guitar Cleaning and Fingerboard/Fret Maintenance at Home [Material-Specific]

If you don't wipe it after playing it, small mistakes can accumulate and cause dullness and buzzing.

Because your guitar is so important, you want to take good care of it and use it for a long time, even as it changes over time.

In this articleDaily careからFingerboards by material,Safe fret maintenanceWe will explain the order, tools, and precautions in a ``step-by-step method to ensure no mistakes.''

NG for nitro/poly/oil finishOrganize your home so it sounds and looks its best, starting today.

Daily care | Cleaning that prevents dirt buildup

My routine every time (play → wipe → wipe strings → case)

As part of your routine after every time you play the guitar, first dry the entire body with a soft cloth to remove dirt caused by sweat and sebum.

Next, wipe each string one by one to remove sweat and oil, which will prevent rust and extend the life of the strings. This only takes 1-2 minutes, and should ideally be done every time you play (every day). Finally, store your guitar in its case to protect it from dust and humidity changes.

This is a quick and easy maintenance, but it will prevent dirt from accumulating, making cleaning easier later on and is the key to keeping your guitar in good condition.

Painting precautions | Nitro / Poly / Oil finish

The cleaners that can be used and the precautions to take vary depending on the type of guitar finish. Nitrocellulose lacquer finish (lacquer) is very delicate, so be sure to check that the guitar polish is compatible with lacquer. Many polish products available in recent years are compatible with lacquer, but it is best to avoid those that contain abrasives, strong solvents, or silicone. Lacquer finish is soft and easily scratched, so it is important to use an extremely soft cloth and avoid scrubbing too hard, and to avoid leaving the guitar directly on a stand for long periods of time (as the rubber may stick to the finish).

On the other hand, guitars with a polyurethane/polyester (polyester) finish have a hard, durable coating, so they can be cleaned with regular guitar polish without any problems. A polish without abrasives is best, as it wipes away dirt and leaves a thin protective film. Although polyester finish is resistant to solvents, it's best to avoid wiping with solutions containing a lot of alcohol, and instead use a guitar cleaner that won't damage the finish. While silicone-containing products may seem convenient at first glance, they can remain on the paint surface and cause problems when refinishing (repainting) in the future, so it's best to avoid them.

For guitars with an oil finish or a bare wood finish that's nearly unpainted, care should generally be taken with a dry wipe, without using much water or solvents. Because these guitars lack a clear coat, dirt easily soaks into the wood, so instead of using regular polishes, simply apply a very thin layer of oil to protect the wood. For example, you can maintain the gloss of an oil-finished neck by reapplying a special oil or wax every few months. If the neck becomes dirty, wipe it lightly with a damp cloth, then wipe it thoroughly with a dry cloth. The lack of paint gives the guitar a nice texture, but it also means you need to be careful of excessive humidity and dryness, and maintain its condition with regular care.

Removes tarnish and prevents rust on metal parts (bridge/tuners)

Proper care can remove tarnish and rust from metal parts like bridges and tuning pegs, restoring them to a gleaming shine. First, apply a small amount of metal polishing compound to a cotton swab and gently rub away dirt from small crevices. Protecting the wood with masking tape before starting will prevent abrasives and tools from coming into contact with the body and scratching it. For larger areas, apply metal polish (e.g., Pical or Scratch Mender) to a cloth and polish. The idea is to gently scrape away the oxide film from the metal surface with the abrasive. Avoid coarse sandpaper; a fine-grain abrasive equivalent to #1000-#1500 is safe. While polishing, black stains will adhere to the cloth. This is the removed oxide, so frequently wiping away the black stains during polishing will result in a clean finish.

After polishing, apply an anti-rust treatment (film formation). For example, Fernandes Scratch Mender products are said to retain their shine for a long time if you coat them with the included surface protector after use. Even if you don't have a dedicated product, soaking a cloth in a small amount of anti-rust oil (such as a silicone-free lubricant) and wiping the metal parts to create a thin oil film will help delay the recurrence of rust. To finish, lightly remove any excess oil with a dry cloth, taking care not to let it drip onto moving parts such as the pegs. Finally, completely remove any fingerprints or abrasives to restore the original shine of the metal parts and protect them with a simple anti-rust coating.

Recommended tools (daily care)

MusicNomad / The Guitar ONE

This liquid cleaner, wax, and polish all in one bottle. Ideal for everyday cleaning, it quickly removes dust and fingerprints and restores a high gloss finish to painted surfaces. Formulated with Brazilian carnauba wax, it forms a clear protective film while being safe for use on all types of paint, including lacquer. It's also compatible with nitrocellulose paints, and is known for its smooth, streak-free finish.

Jim Dunlop / 65

This guitar polish is a classic among classics. Simply spray and wipe to quickly remove dirt and restore the original luster. After use, it leaves an ultra-fine protective film that protects the surface. Furthermore, this film does not build up and does not cloud even with multiple coats, making it ideal for daily maintenance. It is also clearly labeled as suitable for use on lacquer finishes, making it a long-selling favorite among many guitar users.

GHS / Fast Fret

This product removes dirt and lubricates strings and fretboards. The stick-shaped felt applicator allows for precise application to the necessary areas without dripping. Apply it to strings after playing for rust prevention and cleaning effects. It contains no silicone and is primarily composed of natural mineral oil, so there's no need to worry about damaging your fingerboard. This convenient item improves string glide, making fingering smoother and helping to extend the life of your strings. Getting into the habit of wiping them down after each performance will help prevent strings and frets from rusting.

MusicNomad / Suede Polishing Cloth

This high-quality cloth is recommended for use with separate cloths for the body and metal. Made of microfiber material, it's lint-free and has no seams around the edges, so it won't leave scratches. The ultra-fine fibers firmly trap dust and dirt, allowing for effective removal even with a dry wipe. By using separate cloths for painted surfaces and metal parts, you can avoid the risk of scratching the paint with metal powder. It's washable and reusable, making it economical and a staple cloth essential for guitar care.

MusicNomad / MN241 2-in-1

One side isSuper PlushGently remove dust and fingerprints from the body/neck, andLow pile suede lookThis helps to maintain the strings' lifespan and tone.12×12インチ,Lint-free designAnd the performancefront/middle/backYou can complete all your wiping needs with just this one item.Approximately 1 fibers per square inchAnother attractive feature is the soft edge treatment, which helps reduce finishing scratches.

Fingerboard and fret maintenance | Care by material

Basic policy varies depending on the material: rosewood/ebony/maple (painted or not)

Guitar fingerboard maintenance methods and guidelines vary depending on the material. Generally, unpainted fingerboards (open-pore woods) such as rosewood and ebony require moderate oiling to prevent drying. On the other hand, most maple fingerboards have a clear coat on the surface, sealing the wood, so oiling is generally not necessary; simply wiping off any dirt from the painted surface is sufficient.

How to choose fingerboard oil and how often to use it

When choosing a fingerboard oil, it's important to choose one that isn't too harsh and is gentle on the wood. While commercially available "lemon oil" is a standard, the lemon-scented component, d-limonene (a citrus solvent), has strong solvent properties and can dry out fingerboard materials and adversely affect paint and adhesives over the long term. In fact, the long-established Martin guitar manufacturer officially discourages the use of lemon oil, warning that acidic oils can erode paint and corrode frets. For this reason, it's best to choose a fingerboard conditioner that doesn't contain citrus solvents or silicones. For example, MusicNomad's F-ONE Oil is made from 100% natural oils and contains no lemon or petroleum-based ingredients, making it a safe product that won't corrode fingerboards or frets.

The frequency of oiling depends on the guitar's usage and storage environment. The key is to avoid overdoing it. Gibson recommends that even for frequently played guitars, once or twice a year is sufficient. This is because the oils from human fingertips regularly moisturize the fretboard, so excessive wiping may be beneficial. On the other hand, if you keep your guitar in a room with a dry heater in the winter, you can oil it once or twice a month. The idea is to apply a small amount of oil when the wood becomes dry and chalky or feels rough to the touch. While monthly oiling isn't necessary, it's a good idea to only apply it during dry seasons, and aim for approximately every three to six months, depending on the condition of your guitar. Applying too much oil is crucial; simply apply a few drops to a cloth, wipe the entire surface, and then wipe off any excess. Using the right product at the right frequency will keep your fretboard moist and healthy without the risk of excessive oil buildup.

Fret polishing: safe method (mainly using fret rubber)

If your frets are badly oxidized or tarnished, you can restore their dazzling shine with a fret polish. The safest and easiest method is to use a fret eraser. First, remove the strings (recommended when changing strings) and protect the wood of the fretboard with a metal fretboard guard (if you don't have one, masking tape will work). Then, polish using fret erasers of different grits, in order. Generally, it's best to use a medium-grit (equivalent to #1000) to remove tarnish, and then a fine-grit (equivalent to #2000) to achieve a near-mirror shine. Simply rub a rubber-like polishing block back and forth along the tops of the frets several times to gradually remove the oxidized layer and restore the shine.

The key to polishing is to move horizontally along the fret. Circular or cross-sectional movements can easily cause fine scratches, so always polish along the length of the fretwire. After polishing each fret, metal powder will remain on the fingerboard, so wipe it off thoroughly with a dry cloth. As you polish, the cloth will turn black, indicating that the oxide has been removed, so always try to wipe from a clean area.

If you use the right tools and follow the right procedures when polishing frets, you won't normally remove so much that it changes the shape of the fret. If you use a fret eraser or a fine-grained sandpaper of #1000 to #2000, you will only remove a few microns of the surface, and there will be no effect on pitch or string height. *However, if you use a coarse file to scrape it down, that's a different story. Please keep in mind that this is "polishing" and not "leveling."

Finishing and protection (anti-oxidation/conducted simultaneously with string replacement)

After polishing the frets and cleaning the fingerboard, the final step is to wipe the entire fingerboard with a clean cloth. Carefully wipe the wood and metal surfaces dry to remove any polishing residue or oil residue. If necessary, you can apply a thin layer of oil to the fingerboard again before installing new strings to give it a glossy finish. This creates a protective film on the fingerboard surface, preventing it from drying out and the adhesion of dirt. Since the bare metal surfaces of the frets are exposed when they are freshly polished, it is a good idea to lightly apply a rust-preventing lubricant to prevent oxidation, if possible. Another easy method is to lightly apply the aforementioned Fast Fret to the frets before installing the strings and then wipe it off (this prevents stickiness when playing and helps the next string to settle in).

It's most efficient to perform this thorough maintenance of the fingerboard and frets at the same time as changing the strings. With all the strings removed, it's easier to clean every corner of the fingerboard, and you can also polish and oil the frets thoroughly. After putting on new strings, tune the instrument, adjust the octave, and check the string height, making even fine adjustments if necessary. If you make it a habit to wash and dry your hands before playing and wipe them down with a cloth after each performance to prevent sweaty hands, you can prevent the frets from fading and the fingerboard from accumulating dirt. By incorporating these care measures into your string change routine, you can ensure your instrument always plays comfortably and looks beautiful.

Recommended Tools (Fingerboard and Frets)

MusicNomad / F-ONE Oil

This natural oil is safe for unfinished fingerboards such as rosewood and ebony. It contains no lemon, petroleum-based solvents, or silicones, so there's no need to worry about damaging the wood or frets. Its moderate cleaning power wipes away dust and fingerprints while moisturizing the surface, leaving it virtually non-sticky after use. It dries quickly, so your fingers will slide right after application, making it the perfect choice for caring for your fingerboard during dry periods.

StewMac / Fret Erasers

This eraser-shaped polishing block is specifically designed for polishing frets. The rubber is kneaded with fine abrasive particles, so simply rubbing it along the frets will remove rust and tarnish, leaving them shiny and polished. The grit size can be identified by color, and by using a set ranging from coarse to extra-fine, you can achieve a mirror-like finish on your frets. It's not too hard, but flexible, so it conforms to the curves of the frets and polishes evenly. It produces little dust and doesn't scatter, making cleanup easy. It's an excellent maintenance tool that even beginners can use with confidence.

D'Addario / Pro-Winder

This multi-functional tool performs three functions in one, streamlining string changes and simultaneous maintenance. It combines a string winder, string cutter, and bridge pin remover, allowing you to seamlessly loosen and remove strings, wind new strings, and trim the excess strings. Its sturdy construction makes it suitable for electric, acoustic, and bass guitars. It saves time when changing strings, and keeping it in your case makes it a useful item to have on hand when performing live. It's a good idea to have one on hand as a standard tool for removing strings during maintenance.

FAQ | Frequently Asked Questions

Do maple fretboards need oil?

BasicMust not(The paint is the barrier.) To remove dirt, use a paint-compatible cleaner.Apply a spot to the cloth → Wipe gently → Finish by wiping dryUnpainted maple is rare, so if you're unsure, "no oil" is the safest option.

Is it okay to use alcohol or lemon oil on nitro paint?

It's best to avoid itThis can cause cloudiness, tarnish, and stickiness.minimum amount,surelyAttach to the cloth side → Wipe off immediatelyis the principle.

Will polishing the frets change the sound? How often should I polish them?

It removes cloudiness and roughness,Reduced resistance and scraping noise during choking. string replacementOnce every 2-3 timesA slight defogging is sufficient. It is safer not to insist on a mirror finish.

My fingerboard looks whitish and dry. What should I do?

First, the interior/case40 to 55% RHIf not improved, Rose/EbonyApply 1-2 drops of fingerboard oil to a cloth → spread it thinly → wipe it off completely in 2-3 minutesDoing it too much can make it sticky.

Are all lemon oils safe? How can you tell the difference?

By productCitrus solvents and siliconesSome include:No silicone/no strong solventsSelect the instrument that clearly states the following.Apply the minimum amount to the cloth without applying directly.is the principle.

I want to reduce the "squeak" noise from the strings.

Hand wash → Completely dry → Wipe strings after playingIf necessary,String care for fast frets etc.In the recordingDon't use too new strings/Press the strings at a shallow angle on the fingerboard sideJust doing this will reduce the symptoms.

What is the correct humidity level? What should I use?

40 to 55% RHThe standard is.humidipakAutomatic humidity control, room dwellersTemperature/hygrometer + humidifier/dehumidifierAvoid sudden changes (more than ±10%/day).