This combination of natural and synthetic oils is used by saddle makers and boot makers to soften, preserve and waterproof smooth leathers. The leather craftsman will find it especially useful for articles such as hand-tooled moccasins and boots. Can I mix Fiebing’s Leather Dye and Prime Neatsfoot Oil Compound? Mixing Fiebing’s Leather Dye and Prime Neatsfoot Oil Compound. For generations saddle makers and other manufacturers of leather goods have used a combination of oil and dye to both control color as well as to maintain the suppleness of the leather. To achieve this highly desired result the trick is to mix 6% of Fiebing’s Leather Dye with 94% Fiebing’s Prime Neatsfoot Oil Compound. This works especially well with all of the brown tones and the primary colors like green and blue. Apply as usual to unfinished, vegetable tanned leather and allow to dry. You can try to buff the surface when dry to remove any excess dye but due to the low concentration of dye in this mixture you should not have much of a rub off issue. Once dry, feel free to seal with Fiebing’s Acrylic Resolene. Our R&D testing has proven that Fiebing’s Leather Dye combines more effectively with Fiebing’s Prime Neatsfoot Oil Compound then does Fiebing’s Professional Oil Dye. We suggest you use the standard Fiebing’s Leather Dye when attempting this dye/oil combination Item #PNOC00P032Z