Vinnie's Oil UPO surface treatment is a natural, solvent-free and non-toxic, hardwax oil consisting of several different solvent-free and cold-pressed oils with different deep penetrating properties. As well as different waxes that lay in layers at the surface and beneath, to create a water-repellent effect. Vinnie's Ultra Penetrating Oil is specially designed for surfaces that are exposed to heavy wear and penetrate extra deep into the wood. For very exposed surfaces, a layer of Vinnie's Wax on top is recommended. Our Ultra Penetrating Oil leaves a matte finish on wood or satin finish if complimented with universal or wax. Smell of eucalyptus and cedarwood.