Great stuff!
This stuff is great. The heads on my Roland RE-501 looked like there was a brown varnish on them. The varnish was concentrated in the center of the heads and on the magnetic poles. I thought it would take a lot of elbow grease and maybe something stronger (like Brasso or Lapping Paper) to remove it but - WOW! I used wooden handle cotton swabs and dipped them in the bottle of cleaner and rubbed the heads in a side-to-side motion and the varnish started coming off...easily. It took two cotton swabs per head to get all the gunk off. And now all of the heads are clean as a whistle!
Rating: 5 stars