Penofin Dealer ePaintStore.com ships all Penofin surface preperation products right to your door. Use Penofin 1st STEP PREP  for exterior hardwood (concentrated powder)  to open the wood fibers of the surface and to ensure deep penetration of Penofin natural hardwood finish.  If you need to prepare a wood surface that really needs extra attention, make sure you use the Penofin Pro-Tech series of Pro-Tech Strippers (step 1 ),  Pro-Tech Cleaners (step 2) , Pro-Tech Brighteners (step 3).    Proper surface preperation will allow you to have confidence in using all Penofin Exterior Stains & Finishes .