ScienceActually<p>Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts, and different voltages leave different oxide thicknesses and thus different colors.</p><p><a href="https://sfba.social/tags/science" class="mention hashtag" rel="tag">#<span>science</span></a> <a href="https://sfba.social/tags/sciencefacts" class="mention hashtag" rel="tag">#<span>sciencefacts</span></a> <a href="https://sfba.social/tags/titanium" class="mention hashtag" rel="tag">#<span>titanium</span></a> <a href="https://sfba.social/tags/anodizing" class="mention hashtag" rel="tag">#<span>anodizing</span></a> <a href="https://sfba.social/tags/anodizer" class="mention hashtag" rel="tag">#<span>anodizer</span></a> <a href="https://sfba.social/tags/anodized" class="mention hashtag" rel="tag">#<span>anodized</span></a> <a href="https://sfba.social/tags/color" class="mention hashtag" rel="tag">#<span>color</span></a> <a href="https://sfba.social/tags/oxide" class="mention hashtag" rel="tag">#<span>oxide</span></a></p>