Macro Fry’s Reagent, 250 mL

SKU: 133 Category:



This is the stronger version of Fry’s reagent for macro-etching carbon steel and mild steel parts. It is commonly used in forensic studies as the standard reagent for serial number recovery. This etchant is listed in ASTM standard E 340 Table 5. Made with reagent grade chemicals.

We only make this product upon request, please allow 1 business day to fill the order.


User Instructions:

  • Heat the sample to 200 to 250 °C (302 to 283 °F) before etching to show strain lines due to cold work.
  • Swab the steel sample few seconds to a minute, or use a cotton ball soaked in the etching solution.
  • Wash in alcohol or rinse it with a diluted hydrochloric acid after etching to prevent copper deposition.


Nalgene® Leakproof Bottle, HDPE.

Additional information

Weight 0.8 lbs
Dimensions 4.4 × 2.7 × 6.5 in
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