A multi-purpose additive or stand alone coating based on a selection of natural oils. Suitable for use in one-component conventional and half-synthetic varnishes, paints and primers to optimize impregnation/saturation and preservation of the surface. Flow enhancer under cold or hot working conditions. Us as a stand alone product to prevent rust on steel (penetrates existing thin layers of rust through to the steel) and as impregnating oil on wood. Wood - steel: Additive for use in one-component conventional and half-synthetic varnishes, paints and primers.