SDF in Natural and Translucent ColorsSansin SDF tinted in natural or translucent colors adds only a tiny bit of color to enhance the natural beauty of the wood. This stain is a tough, effective protection for wood siding. SDFs specially formulated oils and resins penetrate deep into the wood providing outstanding weather and uv protection. SDF not only protects the wood from the outside but also allows wood to breathe which prevents moisture from getting trapped within. It can provide