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Birchwood Presto Black STEEL PC9 - blackening solution for iron/steel

Birchwood ★ 3.7/5 · ItemOracle Score Mid-Range

$64 USD
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Birchwood Technologies Presto Black STEEL PC9 - versatile blackening solution for iron and steel alloys traditional patina steel blue and black oxide touch-up (1Quart)

Blackening solution for iron and non-stainless steels; mix 50/50 with water for brush-on or 10% in water for immersion to achieve a rich black patina. One customer notes easy use and good value

Highlights

  • deep blue/black finish on iron and non-stainless steels
  • concentrate with water dilution options
  • patina suitable for various ferrous metals

Pros

  • creates rich black patina
  • easy to use
  • versatile with brush-on and immersion options
  • suitable for a variety of ferrous metals

Cons

  • color results can be dull black oxide or grey/blue per user feedback
  • rust resistance feedback is mixed
  • concentrate requires mixing before use

Best For

  • metal finishing on iron and steel surfaces
  • touch-up for patina on ferrous metals
  • brush-on blackening for small parts
  • immersion blackening for larger components
  • finishing machined steel projects
  • patina customization for carbon/iron alloys

Features

  • Delivers a deep blue/black patina on iron and non-stainless steels when used as a concentrate
  • Brush-on use at 50/50 with water; immersion use at 10% in water; adjust for faster darkening
  • Produces a rich, vibrant black patina suitable for ferrous metals like steel, iron, and cast iron
  • Does not blacken stainless steels; made in the USA by Birchwood since 1948

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