Roland “Red Goo” Key‑Weight Repair: How to Clean and Replace

A customer recently brought in a Roland EP‑9 with several sticking keys. The culprit was the notorious red adhesive (affectionately known as “red goo”) that Roland used to secure the key weights in a number of 1990s keybeds. Over time, it can liquefy and migrate, jamming keys and contaminating the keybed. This isn’t unique to … Read more