Ernie Ball 9621 String Cleaner – 2 oz (60 ml) Spray – 1 pc

Ernie Ball 9621 is a string cleaning and conditioning solution in a 60 ml (2 oz) pump spray for guitar strings.

Ernie Ball 9621 String Cleaner is a practical guitar string cleaning and conditioning spray designed to remove built-up grime and help protect strings from corrosion. Regular use keeps your strings feeling smooth, sounding brighter for longer, and reduces unwanted finger noise—ideal for everyday maintenance at home, in the studio, or on the road.

Key features:

• Extends string life: The special formula removes acids, sweat, grease and embedded dirt, helping protect the metal from corrosion and oxidation.
• Preserves tone: Frequent use helps strings maintain a bright sound, accurate intonation and a fresh playing feel for longer.
• Lubricating effect: Lightly lubricates the strings to reduce finger-squeak and sliding noise, supporting faster, smoother playing.
• Practical packaging: Compact bottle that easily fits into any guitar case or gig bag.

How to use:

• Apply a small amount either directly to the strings or onto a microfibre cleaning cloth.
• Wipe each string thoroughly along its full length.
• Use the dry side of the cloth to remove loosened dirt and any excess liquid.
• Recommended after every playing session to prevent sweat from damaging the strings.

Who it’s for / best suited to:

• Electric, acoustic and bass players who want longer-lasting strings and consistent tone.
• Gigging musicians and studio players who need reliable, quick string maintenance.
• Styles that benefit from clean, bright strings and smooth slides—rock, pop, funk, blues, metal, jazz and acoustic fingerstyle.