Metallographic Etchants (Micro Etchants)

Metallographic etchants are chemicals that reveal microstructural details on a mirror-polished metal specimen. These etchants selectively etch or stain microstructural features, such as grain boundaries or metal phases, allowing for detailed study under a microscope. The products listed in this category, also known as micro etchants, are specifically designed for microscopic studies. They are milder and different from macro etchants, which are intended for visual inspections.

  • Adler's Reagent
  • Alpha Case, 2% HF
  • ASTM 151
  • ASTM 36 Ferric Chloride Etch
  • Barker's Reagent
  • Copper Etch
  • Ferric Chloride Etchant
  • Fry's Reagent
  • Kalling's 2 Reagent
  • Keller's Reagent
  • Kroll's Reagent
  • Marble's Reagent
  • Murakami's Reagent
  • Nital Etch
  • Oxalic Etching Solution
  • Picral Etch
  • Prior-Austenite Grain Boundaries Etch
  • Superalloy Etch (Modified Kalling's)
  • Super Picral
  • Vilella's Reagent

Weld Inspection Etchants (Macro Etchants)

Weld inspection etchants are formulated by metallurgists to show weld features, such as the weld nugget, heat-affected zone, and more. These chemicals enable users to inspect welds and measure penetration depth accurately. Our macro etchants are effective, easy to use, and can be stored for up to a year.

  • AWS D1.2 Basic Etchant
  • AWS D1.9 Titanium Weld Etch
  • Ferric Chloride Etchant
  • Macro Fry's Reagent
  • Nital Etch
  • Stainless Steel Weld Etch

Pre-Penetrant Etchants for Fluorescent Penetrant Inspection

Pre-penetrant etchants were developed by jet engine companies for NDT inspection of different metals. They will remove smeared metal from the surface, reveal hairline cracks, and prepare the part for the subsequent fluorescent penetrant inspection (FPI).

  • S1093 Titanium Alloy Etchant
  • S1095 Carbon Steel Etchant
  • S1096 Aluminum Alloys Etchant
  • S1098 Stainless Steel Etchant
  • GE Class A
  • GE Class B
  • GE Class C, Schantz Reagent
  • GE Class E
  • GE Class F
  • GE Class G
  • Cold Ferric Chloride Local Etch Solution
  • Aluminum Etching Gel