I have a relatively new Salsa Journeyman, which has now, after about 200km, developed a squeal in the front hub. The squeal is relatively quiet on low speeds, but gets noticeably loud when riding faster. The wheel is fitted with an unmarked Formula hub, which i believe is a DC-20 model based on its shape. I did already check the brakes and it's definitly not caused by them. It looks like the gasket part of the hub is rotating with the wheel and causing the squeal.
How do I fix this squealing?