Injection moulded thermoplastic composite FCS H4 surf fin. It is produced by Svismold with unidirectional thermoplastic tape acting as skins, sandwiching a moulded thermoplastic core. With this technology, it is possible to combine several different types of fibre reinforcement and thermoplastic matrix, resulting in different levels of performance. This example is basalt fibre and polyamide (PA-BF), nylon.