Dec 13 2006· I have used talcum powder for 40 years The more you use it the longer it lasts If I am ripping on the tablesaw all day long I generally only renew the talcum powder one time from the initial coat I use a small power feeder makes the boards go thru without a hitch I can tell right away when I need to renew the talcum powder boards start to slip and the power feeder won t push them thru easily