Ideal for freeing up the base structure after ironing P1 paraffin wax into the base (as a first brush) or to set up fluoro P4 powder into the base (as a second brush) after ironing. For best results use light pressure and do not use the same brush applying paraffin waxes that will be used when applying fluoro wax (use one brush for paraffin and another to apply fluoro wax). Start with a slow drill speed ie. 500 rpm moving the drill back and forth 1' at a time using light pressure from tip to tail. Make a final pass (3-4 seconds) with a higher drill speed ie. 1500-2000 rpm. Allow base to stand for 10-15 minutes, then use Roto Nylon or Roto Soft Horsehair to polish the base structure repeating steps used for Roto Hard Horsehair. The Roto Nylon or Roto Soft Horsehair is used for final finishing or polishing of the base.