Fix for gold 12 hours Gilding Mixture Lefranc and Bourgeois 75ml Lefranc's 12 Hour Gilding Mix is an oil-based fixative specifically designed for gilding gold leaf and metal. Like the 3-hour version, this gilding mix is lead-free and formulated to bond gold leaf to non-porous surfaces such as glass, metal, and marble. It is specially designed for use on larger surfaces. It works best outdoors and in dry climates, and is recommended in situations with limited amounts of dust. An advantage of the 12 Hour Browning Mix is that it provides longer lasting protection, plus greater shine and depth compared to the 3 hour version. The volume of the product is 75 ml and the complete drying time is estimated to be approximately 12 hours. Brand: Lefranc and Bourgeois