Does the ENHP coating have to be machined or ground after application?
In most applications, the as-plated condition of ENHP is dimensionally correct. This means that no secondary machining operations are usually required to true up the dimensions. ENHP is an electroless process, as compared to hard chrome, which is an electrolytic process. (In the electrolytic hard chrome process, the chrome is deposited from an anode, the part being the cathode. As the current travels the path of least resistance, the coating typically builds up preferentially on corners and edges with very little accumulation in recessed areas.) ENHP does } not use an external power source (the process being chemical not electrical), so anywhere that the part is exposed to the chemical bath, provided the chemical solution can be agitated uniformly, the same coating thickness will result. ENHP generally deposits to within 5% of total coating thickness specified.
