Copper Etch

Copper Etch
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  • Item #: 300
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Price $52.94

Copper Etch is a general purpose grain contrast etchant for copper, brass and bronze. It produces a flat etch for some copper alloys and can be used for macro etching of copper welds. This product is made with ACS reagent grade and USP grade chemicals. This formula is listed in ASTM standard E 407 as number 30.

The product has two parts and has to be mixed fresh before use.


User Instruction:

  1. This product has a pungent odor. Wear protective gears and use it under a fume hood.
  2. Mix equal volumes of parts A and B to create a mixture (1 to 1 ratio). 
  3. Mirror polish a copper sample and then immerse or swab the polished surface with the mixture for few seconds to a minute.
  4. Use fresh.


Part A: Nalgene® Leakproof Bottle, HDPE.

Part B: Brown HDPE Bottle.

C12200 etched with copper etch

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