DR's StringLife Liquid Polymer String Cleaner applies the protective benefits of factory–coated strings to any steel–stringed instrument after the fact. Developed by PROTEK, a polymer specialist in the piano industry, this treatment system molecularly bonds to string surfaces, creating a microscopic barrier between metal and corrosive sweat. Unlike silicone or oil–based products, it leaves no greasy residue on strings or fretboards while extending string life across guitars, banjos, mandolins, fiddles, dobros, and lap steels.
The formula cleans, lubricates, and protects wound and plain strings alike, offering hundreds of applications per bottle through an applicator of choice. It rejuvenates tone on older strings and restores playability, while also functioning as a corrosion barrier on new sets to delay tonal decay. Beyond string treatment, StringLife can be applied to nuts, bridges, and fretboards, where regular use actively reduces fret wear over time.
Features
- Polymer protectant molecularly bonds to create microscopic corrosion barrier layer
- Works on all steel–stringed instruments including guitars, banjos, mandolins, fiddles
- Coats both wound and plain strings unlike factory–coated sets
- Non–silicone, non–oil formula leaves no greasy residue on neck or strings
- Hundreds of applications per bottle with user's choice of applicator
- Rejuvenates tone and playability on older strings already installed
- Extends life of new strings and reduces breakage from corrosion
- Application on fretboards reduces fret wear with regular maintenance use



