Some Disassembly Required

Building, Un-building and Re-building Things

Tag: Anodization

  • Anodizing Aluminum Without Sulfuric Acid

    Anodizing Aluminum Without Sulfuric Acid

    Anodizing at Home, Using Sodium Bisulfsate Instead of Sulfuric Acid. Aluminum (along with most other metals) naturally grows a passivation layer of metal oxide. This protects the underlying metal from corrosion. That is why your car/house/other metal object doesn’t dissolve in the rain. Unfortunately this layer is very thin- only a few nanometers. A tiny…