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PCB etching with H2SO4 + H2O2

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Uploaded by on Mar 24, 2009

PCB etching with 37% H2SO4 (Sulfuric acid) + 30% H2O2 (Hydrogen peroxide) mixed at about 1:1 ratio. Remember to wear safety glasses and protective gloves if you try this as both of them are quite nasty stuff. It might be good to mix a bit of water to the solution because without it the solution seems to be so strong that it tends to eat away the finest details in the mask.

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Science & Technology

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Uploader Comments (akeeh)

  • Vetyperoksidin vaikutus loppuu aika nopeasti, joten periaatteessa pitää joka syövytykselle tehdä uusi satsi. En ole varma miten tehokasta liemi on jos säästää aineen ja lisää uutta vetyperoksidia silloin kun haluaa syövytellä lisää. Aineiden pitäisi kestää ihan hyvin, kun tekee vaan tuollaisia videossakin näkyviä mahdollisimman pieniä satseja.

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  • Piranha bath yay!

  • 30% h2o2 is hard to find here any way i cud just use the normal 3%?

  • Haihtuukos tuo liemi suljetustakin astiasta? Eli pitäisikö sekoittaa uusi liemi "usein" =parin kuukauden välein?

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