Argentium Silver Clay Superflex is the only Superflex that can be used with the Argentium Silver Clay.
The SuperFlex Pen is a creation unique to Aussie Metal Clay.
My SuperFlex pen consists of a concentrated formula which contains enough Liquid to mix with (BONUS!) 8+ x 50gram packets of Aussie Metal Clay powder or clay, more if you are using the SuperFlex Pen to create Clay Sheets. This gives you the freedom of creating your clay, the way you want, at any time you like.