Penofin Blue Label preserves and protects exterior wood. Using trans-oxide pigments, Penofin Blue label retains the wood’s natural colors while penetrating deep into the wood fibers. Use Penofin Blue Label on fences, decks, and unfinished exterior wood siding. Penofin exterior finishes were formulated to safeguard the natural beauty of wood and to prevent discoloration from the sun's ultraviolet rays. Penofin resists and retards bleeding caused by nails. Two key ingredients contribute to Penofin's exceptional abilities Brazilian Rosewood Oil provides tough, deepdown moisture protection while still allowing the wood to "breathe." There's no surface film to trap moisture, chip, or peel Microscopically fine, transoxide pigments inhibit ultraviolet 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 grey By precisely combining these and other ingredients, we have created a line of transparent oil wood finishes unmatched in durability and beauty. Caution & Warnings Combustible - keep this product away from heat, open flame, and sparks Beware of spontaneous combustion. Make certain all rags or other materials used with Penofin are soaked in water, stored in an air-tight container, or otherwise disposed of safely