Lifeline PreludeDescription Lifeline Prelude Clear Primer Sealer for Lifeline Wood Finishes It is difficult to apply a consistent coat of stain on wood that has been media blasted as well as wood surfaces that are unusually porous, such as rough cut siding and old, weathered logs. A coat of Prelude acts as a sealer primer that fills the pores of the wood and provides a uniform surface for staining. Reduces the porosity of media blasted surfaces Prevents over