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Can I use WD-40 on guitar fretboard?

Published in Guitar Maintenance 3 mins read

Can I use WD-40 on guitar fretboard?

No, you should not use WD-40 on a guitar fretboard.

Why WD-40 is Not Recommended for Guitar Fretboards

While WD-40 is widely used for lubrication and as a penetrating oil, it is not suitable for the delicate wood and finish of a guitar fretboard. Guitar maintenance experts strongly caution against its use. Applying WD-40 to your fretboard can lead to several undesirable outcomes:

  • Drying Out the Wood: WD-40 is primarily a solvent and water displacer. When applied to unfinished woods like rosewood or ebony, it can strip away the natural oils essential for the wood's health, leading to premature drying, cracking, and shrinkage over time.
  • Damaging Finishes: For finished fretboards, such as those on maple necks, WD-40 can potentially degrade, cloud, or even strip away the protective lacquer or polyurethane finish.
  • Attracting Dirt and Grime: Despite its lubricating properties, WD-40 can leave a greasy residue that attracts dust, dirt, and finger gunk, making the fretboard feel sticky or unpleasant and harder to keep clean.
  • Corrosion Risk: The chemical composition of WD-40 is not designed for long-term contact with fret wire or other metal components of a guitar, and it could potentially contribute to corrosion or dulling of the frets.

Safer Alternatives for Fretboard Maintenance

For proper fretboard care, especially for unfinished woods, it's crucial to use products specifically designed for guitars. While some unconventional methods like sliced salami, chapstick, or 3-in-1 oil might be mentioned as emergency fixes for a sticky fretboard, WD-40 is consistently advised against by professionals.

Recommended Fretboard Oils and Cleaners

For cleaning and conditioning your guitar fretboard, consider these safer and more effective options:

  • Specialized Fretboard Cleaners: Many guitar accessory brands offer cleaners designed to safely remove grime without harming the wood or finish.
  • Lemon Oil: Formulated lemon oil (specifically for guitars, not household lemon juice) is a popular choice for dark, unfinished fretboards. It helps to clean, moisturize, and restore the wood's natural luster.
  • Mineral Oil: Food-grade mineral oil is a safe and effective, non-drying oil that can be used to condition rosewood and ebony fretboards.
  • Boiled Linseed Oil (BLO): While effective for conditioning, BLO must be used very sparingly and wiped off thoroughly to prevent stickiness or hardening.

Tips for Proper Fretboard Care

Regular and appropriate maintenance will extend the life and playability of your guitar's fretboard.

  1. Clean After Playing: After each use, wipe down your fretboard with a soft, lint-free cloth to remove sweat, skin oils, and general grime.
  2. Deep Clean Periodically: When changing strings, use a dedicated fretboard cleaner to remove stubborn buildup between the frets. You can use a soft brush (like an old toothbrush) for tough spots.
  3. Condition Sparingly: For unfinished fretboards, apply a small amount of an appropriate fretboard oil (like lemon oil or mineral oil) once or twice a year, or when the wood appears dry and dull. Apply a thin coat, let it soak for a few minutes, and then wipe off all excess thoroughly.
  4. Avoid Household Chemicals: Never use general household cleaners, polishes, or silicone-based sprays on your guitar, as they can cause irreparable damage.

Fretboard Care: Do's and Don'ts

Aspect Do Don't
Cleaning Use a soft cloth, specialized guitar fretboard cleaner. Use harsh chemicals, abrasive materials.
Conditioning Apply lemon oil, mineral oil, or guitar conditioners. Use WD-40, silicone sprays, furniture polish.
Frequency Clean after each use; condition 1-2 times annually. Over-condition; neglect regular cleaning.

By following these guidelines, you can ensure your guitar's fretboard remains in excellent condition, promoting comfortable playability and preserving the instrument's longevity.