Tell us about yourself!
"1. Boil Approx. 500 ml Of Water In A Utensil For 15-20 Minutes. The Hotter The Water is, The Less Time The Etching Method Will Take."So... water boils at (approximately) 100 ºC. Boiling it longer, at room temperature and standard pressure (without something like a pressure cooker surrounding the water) will just create (more) steam. Or am I missing something here? For instance: are you using a thick-walled container that retains its heat better if heated longer?
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