You can tell Boeing the following regarding the Mylar Material:BAC 5317 Section 5.2.1. Additional Processing Aids and Surfaces states "Scissors, Tweezers, Straight edges, Protractors Squares, Templates and other processing aids may contact uncured material provided they are clean and free of contaminants such as oil, grease, partially cured or uncured silicones and particulates." The Material used for the Mylars is PVC, which is not Silicone and can therefore be used as Contact Material.In parallel, we are looking into an improvement of the process as this Material might be removed from the Contact Material List in the future. I will communicate with Fesher Program about this.