To build a model, you have to use glue. I know, it’s crazy… What glue should you choose ? In fact, it depends on the material your model is made of. If your model is made of polystyree (most of them are), you will use dissolution glue sold in a hobby store. If your model is made of resin, only one choice available : bond glue like cyanocrylate (known as “Superglue”). For huge surfaces, you will use neoprene. And if all that don’t work, joker : white wood glue. Doesn’t glue very much but glue anything, very useful for transparent parts.