About Wood Stain Use it to stain any type of wood for indoor or outdoor use. A highly concentrated wood stain that stains wood in one simple application. The formulation is water-based and so is safe to use in all environments, has a very low odour and is non-toxic. Our Wood Stain is specially formulated to evenly dye wood, ensuring equal and even colour penetration throughout. The stain dries to a natural matt finish in only 10 minutes and has excellent coverage.