Penofin Blue Label is a semi-transparent penetrating oil finish manufactured to the highest environmental standard. Semi-Transparent Western Red Cedar Oil-Based Penetrating Wood Stain 1 gal By precisely combining these and other ingredients we have created a line of transparent oil wood finishes virtually unmatched in durability and beauty. There's no surface film to trap moisture" chip or peel. The highest quality Brazilian rosewood oil provides tough " deep-down moisture protection while still allowing the wood to ""breathe"".