was searching all over the net, when i should have just played with one of the cartomizers i ordered.
The new Blu Cartomizers are made of metal. They have a thick paper coating on top of said metal which give them a nice feel.
At first glance it looks to be impossible to take apart and the thought of needing a saw quickly surfaces to your thoughts.
HOWEVER: simply take a SMALL screwdriver or similar object that will fit inside the mouth piece opening, Pry slightly and POP the tip off... it's not glued.
Since these carts do not come with plastic covers, you simply find a pen or marker cap that will fit over top or just drip new juice onto the fabric within, replace previously POPPED cap and enjoy.
I MUST SAY that the new blu cartomizers produce an excellent amount of vapor. I ordered the Magnificent Menthol and the taste is great.. is is like a Vanilla Mint. Though the throat hit is less than minimal.
Hope this helps.