Certain nickel polyalloys, such as Ni-P-h-BN and Ni-P-PTFE, are commonly used in the molding and stamping industries as they produce superior anti-galling coatings. In addition, PTFE and hexagonal boron nitride (h-BN) are known for their high thermal stability and great solid lubrication, which can improve the wear characteristics of the coating. h-BN particles also improve the corrosion resistance of nickel-phosphorus (Ni-P) coatings, and heat treatment can raise their hardness. Due to the nature of the previously mentioned operations, these coatings may develop defects over time, exposing the base substrate. This study focuses on the corrosion behavior of h-BN co-deposited on Ni-P coating by utilizing an electroless deposition process. Electrochemical impedance spectroscopy (EIS), a widely used approach to analyze the anti-corrosion performance of protective coatings, is utilized to study the interaction between the coating and aluminum substrates of mold used in the tire industry. The h-BN is known for its high thermal stability and great solid lubrication, especially in industry, which can improve the wear characteristics of the coating. On the other hand, poor wettability of the h-BN coating counts as a disadvantage that can be solved by incorporation within the matrix layer of an active metal such as nickel. The results revealed that h-BN particles improved the corrosion resistance of the Ni-P coating, and that heat treatment can increase the hardness of the coating.