Copper Etch



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 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 Instructions:

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


Part A: Nalgene® Leakproof Bottle, HDPE, 500 ml
Part B: Brown HDPE Bottle, 16 oz. (We might occasionally ship Part B in 32 oz. bottle based on the supply)

Additional information

Weight 2.9 lbs
Dimensions 4.4 × 7 × 6.5 in
  • Now serving US & Canada.

  • All prices are in $USD.

  • Overnight and UPS collect available.

  • Commercial shipping address required.