by whiskeyshiner » Mon Apr 14, 2014 9:57 pm
Ill have to post pics later coz i cant seem to upload them but basically im using a blue plastic 44 gallon drum filled with the top cut off filled with 200mm of water which will cover my welds. I wasnt happy using dangerous acids or the results i got from acetone so im testing 2kgs of citric acid for a 5% solution and a litre of phosphoric acid because i had it lying around will post results. after one day blackness around ferrule weld has reduced. The beauty of citric is it will eat carbon and iron but not destroy the chromium oxide layer on stainless :handgestures-thumbupleft:
Last edited by
Sam. on Tue Apr 15, 2014 7:31 am, edited 1 time in total.
Reason: Fixed thumbs up