Penofin exterior finishes were formulated to safeguard the natural beauty of wood and to prevent discoloration from the sun's UV rays. Penofin wood stain resists and retards bleeding caused by nails. Brazilian rosewood oil provides tough, deep-down moisture protection while still allowing the wood to breathe. There's no surface film to trap moisture, chip or peel. Microscopically fine, trans-oxide pigments inhibit UV damage and darkening. They add deep, rich color without hiding the natural beauty of the grain. Semitransparent mist tones, Nantucket mist mimics the look of weathered barn wood, pacific pearl mist adds a whisp of white and Mendocino mist adds a hint of slate gray. By precisely combining these and other ingredients, we have created a line of transparent oil wood finishes unmatched in durability and beauty.