http://www.hardwareworld.com/Slide-All-Spray-p7OAKKS.aspx?gclid=CPmjlJyRvMsCFUI6gQod4AcOag
Available at your local hardware store, much less expensive. It's a a clear spray with no petroleum propellant. That's the key.
McLube works -- but this stuff works pretty much the same.
Sail slides and tracks, hinges, zippers, etc.
Someone said it's the same stuff as McLube from a chemical standpoint.