Vilella’s Reagent, 250 mL

Vilella’s Reagent, 250 mL
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  • Item #: 121
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Price $52.94

Vilella’s Reagent (AKA Villela's etch) is a popular etchant for etching heat treated steels, martensitic stainless steels and tool steels. This etchant is listed in ASTM standard E 407 as formula number 80 "Vilella’s". 


User Instructions: 

  • Immerse or swab the sample for up to a few minutes.
  • This product will stain skin and clothing. When rinsing the sample after etching, it is advisable to rinse in water to remove the bulk of the etchant, and then immerse the sample in a beaker of alcohol, followed by flushing the surface with alcohol from a squeeze bottle.

Product Applications:

  • Reveal the ferrite-carbide structure (tempered martensite).
  • Etch martensitic stainless steels, tool steels, or steel with a tempered martensite microstructure.
  • Outline and enhance constituents in stainless steels: delta ferrite, sigma phase, and carbides.
  • Reveal prior-austenite grain boundaries on tempered steel. This etchant works best when the steel is tempered between 300 to 500 °C.


  • Nalgene® Leakproof Bottle, HDPE.

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