One of my hifi projects is removing sticker gum from all the jewel cases as the adhesive seems to get worse over time. I have a bottle of eucalyptus oil on hand to remove the sticky residue when I reach into the collection to play a CD and find one with price labels and stickers all over its case.
But! Some brands of eucalyptus oil destroy the jewel case - instead of removing the residue, they smear it across the jewel case and in a certain light it's a white smear. It feels rough, too.
Other brands of eucalyptus oil clean up perfectly - no residue. But all the brands I buy are listed as "100% Pure"!
Is "100% Pure" not actually 100% pure? I'm simply curious about what is going on here. What's the mechanism at work?
I'm not agitated about this first world problem, just curious.
This query comes to you courtesy of a newly-opened bottle of Bosisto's Eucalyptus Oil.
