Poly Ether Ketone Ketone (PEKK) is part of the Poly Aryl Ether Ketone (PAEK) family of ultra-high-performance polymers. These polymers have an outstanding combination of physical, chemical, and thermal properties making them excellent for anti-corrosive coatings in demanding applications. Through the development of a unique copolymer structure, the ratio of monomer units allows a range of melting points (305 -358 oC) and crystallization rates (t1/2: 2-32 minutes). This capability significantly broadens the processing window of PEKK compared to other PAEKs and thermoplastic powder coatings, enabling powder coating processes while still delivering the highest performance. In this presentation we demonstrate the corrosion resistance of PEKK-based powder coatings in aggressive chemical environments while retaining its mechanical performance. The coatings are applied easily through conventional electrospray equipment without the need of a primer and the processing window can be tuned to provide a defect-free finish without any residual stresses.