Copper Etch

Copper Etch
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  • Item #: 300
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Price $54.00

Copper Etch is a general purpose grain contrast etchant for copper, brass, and bronze. It produces a nice flat etch for some copper alloys. 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 a 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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