Hi Maureen, there isn’t really a gummy side of this product. It’s many layers of tissue-thin papers, glued in such a way that it forms honeycomb openings when you pull it apart from top layer to bottom layer. To use it, you glue the outside paper layer to one side of you project and the opposite paper layer to the opposite side of your project so that opening it reveals the honey comb design. As well you can fold the shape back on itself and use it as a 3 dimensional shape. Short answer to your question though, is yes, you can still use what you haven’t cut from the whole paper product. Hope this is more helpful than confusing.