Coated vs. Uncoated Guitar Strings: What are the differences? – Ernie Ball Blog
D'Addario EXPR160 Reds Coated Copper Electric Bass (50-105)
DR Strings Hi-Def NEON White Coated Medium 5-String Bass Strings | Guitar Center
Amazon.com: D'Addario EXP17 Coated Phosphor Bronze Acoustic Guitar Strings, Light, 13-56 – Offers a Warm, Bright and Well-Balanced Acoustic Tone and 4x Longer Life - With NY Steel for Strength and Pitch
Cleartone Electric Bass Strings– Cleartone Strings