This is the magic potion you will need if you are going to modify the length of your Forever Barnwood mantle of floating shelf (see video). It can also be used to touch up the ends and edges of your Rustic Barn Wood Plank. You can also darken any of our Forever Barnwood products, by applying additional applications of the Secret Sauce. Each subsequent application will darken, add sheen, and provide additional moisture resistance to the finish. Note: this process cannot be reversed – so be cautious. Secret Sauce is not a stain. It is a Trademarked solution that reacts with and physically changes the wood. It is a “living finish”.