An actuator device that includes at least one fiber, and at least one first coating is disclosed. The first coating encloses the at least one fiber. The actuator device may include a plurality of fibers and/or a conducting material. The coatings may enclose the plurality of fibers, or each individual fiber. The coatings may provide moisture protection, UV protection, saline protection, and oxidation protection. The coating may be thermally and electrically conducting or insulating, depending on the specific function and environment of the actuator device.本案揭示一種致動器裝置,其包括至少一個纖維、及至少一個第一塗層。該第一塗層封裝該至少一個纖維。該致動器裝置可包括多個纖維及/或一導電材料。該等塗層可封裝該多個纖維,或每一個別纖維。該等塗層可提供濕氣保護、UV保護、鹽水保護、及氧化保護。該塗層可為熱及電氣傳導或絕緣的,此取決於該致動器裝置之特定功能及環境。