Keekers, as
prateus mentioned earlier, the wicks are made from silica rope; the primer should be just plain, pure PG (to keep the coil moist and primed).
I buy Joye eGo-T and eGo-C atties and they use very mild tasting primer--I'm pretty sure it's pure PG or a PG/VG mix. I don't even clean mine--just quickly blow out the excess and wipe whatever is visible with a tissue. Whatever is left inside the atty vaporizers pretty quickly.
That said, I'm sure there are some manufacturers in China who don't use PG as a primer. I had some foul tasting clearos, for instance. They were really bad. Think WD-40...
Great pictures, Bizzy!