What is the exact formula for making an echant, using hydrogen peroxide, sulpheric acid and distilled water please. Or has there been others ?
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Homebrew etching chemicals
2012-11-23 by pauldebono@rocketmail.com
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2012-11-23 by pauldebono@rocketmail.com
What is the exact formula for making an echant, using hydrogen peroxide, sulpheric acid and distilled water please. Or has there been others ?