TRU TEMP® 2nd GEN generates a darker and cleaner black oxide finish on an expanded range of high-alloy and high-strength steels and iron. The magnetite finish is non-dimensional at 1 micron thick and ideal for machined components, non-machined components, powdered metals, MIM parts, tooling, gears, sucker rods and more. Our customers asked us for one finish that could work with a wider range of materials while achieving a quality black oxide finish and TRU TEMP® 2nd GEN does that and more.