I bought a pen restoring set and it has a little container of talc powder. I can’t figure out what to do with it or why I need it!
Talcum powder is lightly dusted on the new sac. It helps to absorb excess moisture, which increases the life span of the sac – less moisture means less sac rot! Some sacs do not need this but if you have latex sacs, a little dusting can go a long way.