torque, all I know is that before I found Obidisian, keeping my vulcanite stems free of oxidation was a major pain, now it is as simple as wiping on Obidisian, letting it sit for half an hour and then wiping it off. I no longer have to send my pipes in to keep them perfect. I have been using it for over three years and have never had a stem go rancid on me. I honestly don't care what is in it and as far as UV protection, I do not store my pipes in direct sunlight but I do smoke my pipes outside plenty and still have no issues. As fas as my claims being unsubstantiated, I guess you are calling me a liar and all of my friends who swear by it are also liars?
Peck, stop using your obidisian on your stems and see what happens. Once a stem is in good shape, Obidisian will keep it nice. Now when it comes to the old sulpher laden crap British stems, nothing works great on those, but Obidisian will keep it nice longer than any other product I have tried. Most if not all of your pipes have the high quality German vulcanite so it is not an issue for you. I have smoked vulcanite stems for over 15 years and I have tried every single stem oil on the market that was sold at either SP or PC these last 15 years and I will unequivocally state that not a one of those other stem oils ever came close to what Obidisian can do. If people want to suffer with oxidization then don't use Obidisian, it is certainly no sweat off my balls. I have no affiliation with the company so I don't get a piece of the 8 whole bucks it sells for.