Hermadix Douglas oil Dim grey is specially developed for new and old Douglas wood. Douglas fir oil gives a transparent appearance so that the wood grain and wood structure remain visible. Douglas-fir oil penetrates deeply into the wood and gives a matt, natural look. Douglas fir oil dries quickly and is easy to apply. 1-2 layers of Douglas oil are sufficient for a beautiful result. For maintenance coats, sand lightly in between. Douglas fir oil is a water-based, people- and environment-friendly oil based on natural ingredients. Douglas-fir oil is also suitable for larch wood.