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Etchant #042, 32oz (E407-042-32-00) - ASTM E-407 Etchants by Metallurgical Supplies
SOLUTION ETCHANT #042
Etchant Solution following the standards of ASTM E-407. With the solution, a COA is provided and the COA's of all the chemicals used to make the solution.
ALL SOLUTIONS ARE MADE THE SAME DAY OF SHIPPING
10 g cupric ammonium chloride
100 mL Water
Add NH4OH to solution until neutral or slightly alkaline.
Immerse 5–60 s.
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