Blackening shuriken the new old way

First published at 18:10 UTC on September 10th, 2019.
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Shuriken (and steel) were normally blackened by covering them with oil and then putting them in a flame to burn the oil. That bonds with the surface and creates a type of "glaze" that protects the steel. This is easier to do with liquid bl…

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CategorySports & Fitness
SensitivityNormal - Content that is suitable for ages 16 and over
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