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Post by straekat on Feb 17, 2019 7:31:54 GMT -7
It is possible to replace worn or damaged tinned surfaces of copper items used for eating, cooking, or drinking without resorting to sending the item(s) out to a shop that does it, and you pay through the nose. The process requires the use of chemicals, heat, and caution. Consequently, this carries a "don't do this at home" if you are not familiar with the safety precautions in the procedures used. www.instructables.com/id/DIY-Hand-Wiped-Tinning-of-Old-Copper-PotsPans-Inst/Copperware without tinning, or damaged surfaces can be used, however, using those items requires keeping surfaces clean, free of verdigris, and not allowing food or other consumables to remain or be stored in the container after it has been prepared. Modern pewter is 95% or more tin, and may contain small amounts of bismuth or other food-safe metals used to alloy the pewter. Used or damaged modern pewter that is food-safe can be bought cheaper than pure tin, and might be usable as a source of plating material for tinning copper. It melts at roughly 300/350 degrees Fahrenheit and flows freely at roughly 600 degrees F. Melting tin or pewter should be done in a well-ventilated and well-lighted location. |
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Post by Black Hand on Feb 17, 2019 8:37:23 GMT -7
I'd like to find something that will strip the oxidation from copper that is easier to obtain than acid. I realize I can purchase the acid at a pool supply house, but not something I prefer to do in the absence of a proper fume hood rated for acids.
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Keith
City-dweller
Bushfire close but safe now. Getting some good rain.
Posts: 990 
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Post by Keith on Feb 17, 2019 18:49:58 GMT -7
It is possible to replace worn or damaged tinned surfaces of copper items used for eating, cooking, or drinking without resorting to sending the item(s) out to a shop that does it, and you pay through the nose. The process requires the use of chemicals, heat, and caution. Consequently, this carries a "don't do this at home" if you are not familiar with the safety precautions in the procedures used. www.instructables.com/id/DIY-Hand-Wiped-Tinning-of-Old-Copper-PotsPans-Inst/Copperware without tinning, or damaged surfaces can be used, however, using those items requires keeping surfaces clean, free of verdigris, and not allowing food or other consumables to remain or be stored in the container after it has been prepared. Modern pewter is 95% or more tin, and may contain small amounts of bismuth or other food-safe metals used to alloy the pewter. Used or damaged modern pewter that is food-safe can be bought cheaper than pure tin, and might be usable as a source of plating material for tinning copper. It melts at roughly 300/350 degrees Fahrenheit and flows freely at roughly 600 degrees F. Melting tin or pewter should be done in a well-ventilated and well-lighted location. Some foods will react to copper, regardless of the copper being clean. This will make the food toxic. Keith. |
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lrb
City-dweller
Posts: 27
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Post by lrb on May 9, 2019 8:29:21 GMT -7
I'd like to find something that will strip the oxidation from copper that is easier to obtain than acid. I realize I can purchase the acid at a pool supply house, but not something I prefer to do in the absence of a proper fume hood rated for acids. Have you tried TARN X? It is an acid based cleaner for silver, brass, copper. Minor fumes, minimal skin irritation, I wouldn't wash my hands in it, but is not too aggressive on skin. Usually is very impressive on tarnished copper. |
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lrb
City-dweller
Posts: 27
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Post by lrb on May 9, 2019 8:32:09 GMT -7
It is possible to replace worn or damaged tinned surfaces of copper items used for eating, cooking, or drinking without resorting to sending the item(s) out to a shop that does it, and you pay through the nose. The process requires the use of chemicals, heat, and caution. Consequently, this carries a "don't do this at home" if you are not familiar with the safety precautions in the procedures used. www.instructables.com/id/DIY-Hand-Wiped-Tinning-of-Old-Copper-PotsPans-Inst/Copperware without tinning, or damaged surfaces can be used, however, using those items requires keeping surfaces clean, free of verdigris, and not allowing food or other consumables to remain or be stored in the container after it has been prepared. Modern pewter is 95% or more tin, and may contain small amounts of bismuth or other food-safe metals used to alloy the pewter. Used or damaged modern pewter that is food-safe can be bought cheaper than pure tin, and might be usable as a source of plating material for tinning copper. It melts at roughly 300/350 degrees Fahrenheit and flows freely at roughly 600 degrees F. Melting tin or pewter should be done in a well-ventilated and well-lighted location. |
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lrb
City-dweller
Posts: 27
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Post by lrb on May 9, 2019 8:37:49 GMT -7
Modern plumbers solder is 95% tin and food safe, just wash away any residual flux and you're good to go.
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Post by Black Hand on May 9, 2019 15:20:47 GMT -7
I'd like to find something that will strip the oxidation from copper that is easier to obtain than acid. I realize I can purchase the acid at a pool supply house, but not something I prefer to do in the absence of a proper fume hood rated for acids. Have you tried TARN X? It is an acid based cleaner for silver, brass, copper. Minor fumes, minimal skin irritation, I wouldn't wash my hands in it, but is not too aggressive on skin. Usually is very impressive on tarnished copper. I haven't. Thanks for the tip... |
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