territorialmillworks Posted February 3, 2013 Share Posted February 3, 2013 I normally soak stock in vinegar overnight to wire brush off the mill scale the next day, Problem was I forgot to put the bar stock in LOL So I brought the metal to a black heat and dropped it in the vinegar. An hour later, it brushed off as easily as if it had soaked all night. Before I get 'hate mail', PPE with good ventilation was used. Quote Link to comment Share on other sites More sharing options...
atexascowboy Posted February 4, 2013 Share Posted February 4, 2013 Which flavor? Apple cider or distilled? Quote Link to comment Share on other sites More sharing options...
aessinus Posted February 4, 2013 Share Posted February 4, 2013 Which flavor? Apple cider or distilled? The cheapest one from the dollar store. OP: Thanks for the tip. Worked a champ on a short length of rusty chain. Made the cleanup really quick. Quote Link to comment Share on other sites More sharing options...
Jeff Seelye Posted February 4, 2013 Share Posted February 4, 2013 OK besides the PPE issue... Do this in a well ventilated area because when I did this, all the stuff in the immediate area got rusty quicker, if this is not an issue, just ignore. Just be warned, you are putting acid in the air and it will land on something. I use acids for color and I have learned over time to watch what is around me when I am doing this. Quote Link to comment Share on other sites More sharing options...
Richard Furrer Posted February 5, 2013 Share Posted February 5, 2013 hot acid works faster...in the winter it works almost not at all. Its 8F here and some of it freezes and you can pour off the concentrate. Tom Latane' has been vinegar soaking his work for many years. RIc Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted February 5, 2013 Share Posted February 5, 2013 For small items you can use a thrift store crock pot turned on low. As previously mentioned the vapors will rust *everything** rustable that they can possible get to. Quote Link to comment Share on other sites More sharing options...
Chinobi Posted February 6, 2013 Share Posted February 6, 2013 do you think the advantage comes from the hot iron warming the acid, or the quenching action of dropping a hot piece into liquid? i definitely miss having a crock pot of hot scalex for cleaning up silver work! Quote Link to comment Share on other sites More sharing options...
KillerKustums Posted February 19, 2013 Share Posted February 19, 2013 Ah nice tip guy's thanks Quote Link to comment Share on other sites More sharing options...
Ten Hammers Posted February 20, 2013 Share Posted February 20, 2013 Junk store or garage sale. Find some stainless mixing bowls. Acid in this, stock in following. the bowl on the coal fire ( just settin on top) in the wintertime. Yes the vapors drift. use care. Yes cheap dollar store white vinegar ( gallon ) is fine. Quote Link to comment Share on other sites More sharing options...
windancer Posted February 20, 2013 Share Posted February 20, 2013 Muratic Acid, equal part with water, Use cold. 2 hours and the scale rubs off with your hands. Do NOT store or use it in your shop [all your tools will rust badly]. Keeps for a long time. Courtesy of Bill C. Dave Quote Link to comment Share on other sites More sharing options...
Gor Posted February 22, 2013 Share Posted February 22, 2013 Would like to add that the fumes from boiling vinegar can be harmful small animals like pets (bad) and most household pests (good). I've used it to get rid of flies and gnats before, just had to take the cat outside first. Quote Link to comment Share on other sites More sharing options...
Searobin Posted July 5, 2013 Share Posted July 5, 2013 A cheaper source of Sparex can be founde at your local pool supply, called pH Down. It is sparex ( Sodium BiSulfate) - the high price. Quote Link to comment Share on other sites More sharing options...
thingmaker3 Posted July 7, 2013 Share Posted July 7, 2013 Sparex #2 is mostly sodium bisulphate, yes. But Sparex #2 is not for ferrous metal, it's for things like copper or silver. Quote Link to comment Share on other sites More sharing options...
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