"The new LiFe HD® (Lithium & Iron) process is a proprietary process similar to Melonite/QPQ, but with better options. The LiFe HD® process creates a smoother (less porosity) surface finish, this imparts higher corrosion (twice the corrosion resistance as QPQ) resistance and lubricity characteristics. The hardness and depth are almost identical to QPQ, but LiFe HD® accomplishes it’s goal with a single one step procedure compared to the multi-step processes of QPQ (quench polish quench). A more uniform/deeper black finish also seems to be a byproduct of the process."
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