Okay - As requested I have put together simple pictoral instructions on how to remove the filler from a Volt cartomizer. This is really handy if you have a sealed or manual battery and you want to test juices without filling an entire carto.
This is a Volt carto that needed to be cleaned without the end cap. Now I won't have to clean it! That little glob in the core is just a piece of filler.
Use a pointy object to locate the end of the filler material which wraps around the central core (like toilet paper). Pull the end up gently.
This just shows a little better that I have located the end.
I put my fingertip over the center part and gently pull the filler up as it unwinds. It may not be necessary, but I don't want to pull up the center.
Remove the filler.
Remove the material which hugs the central core.
All done! You can clean it if you like, or rinse it, or just blow it out.
I removed the black outside sticker to expose the stainless tube and removed any remaining adhesive with Goo Gone. Then I gave it a light rubbing with fine sand paper and added a Tester label just for fun.