Good suggestion, it is a good idea to start with "The Parachute Manual", Volumes I & II. In the military we still use Beeswax for certain parachute applications (mostly older type parachutes.) It is a good tool used in moderation and only used on approved items. It works well in preventing wear on control lines, and pack closing loops on T-10 type parchute pack trays. I'm not sure I would want to put petroleum or wax in my cable housings. It is a good general rule to keep everything nice and clean.