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. Stand alone product to prevent rust on steel (penetrates existing thin layers of rust through to the steel) and as impregnating oil on wood. Application Wood - steel: additive for use in onecomponent conventional and half-synthetic varnishes, paints and primers.