Best deck stain with linseed oil?
Linseed oil is a natural protectant against mold and mildew. There are many oil-based deck stains that contain linseed oil, but some brands have more than others. Armstrong Clark is a high-quality oil-based deck stain using a blend of linseed oil, conditioning oils, and drying oils to condition wood, protect it against moisture and mildew, and seal it against weather and sun. Not all oil-based deck stains use linseed oil.

