RE: CMP BF109F BUILDING THREAD
This is the pic of the epoxy resin mixed with cabosil and black tint over glass tape that is normally use for seaming.
Note in the previous pic the grey tape is the slat size taken from a card stock pattern used on both sides. same pattern used on both sides.
This is the basic concept of copying shapes exactly. you can see how this can be used to get extra parts if you "think".
steve