Can Interflon Fin Super aerosol be used to loosen rusted or seized parts?

Yes. One of Fin Super's key strengths is its outstanding penetrating ability. Its MicPol® particles, at 0.05–0.15 microns, are small enough to work into the microscopic gaps between corroded or seized surfaces. Fin Super dissolves rust, breaks down oxidation deposits, and frees stuck, frozen, or seized parts — making it highly effective for both corrective maintenance (freeing a stuck bolt or seized hinge) and preventative protection (stopping corrosion before it starts).