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| Thread ID: 103324 | 2009-09-18 23:33:00 | Cleaning Copper | wainuitech (129) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 811662 | 2009-09-18 23:33:00 | We have found this old Copper fire / coal bucket in the car port after a clean up that we want to polish up. It is genuine copper. As per any old copper item , its very badly tarnished other wise in very good condition, no real dents. We have tried several options located on Google - Vinegar and Salt :waughh: Salt, Vinegar, and Flour Lemon and Salt Cutting compound Wire buffing wheel attached to drill We dont really want to attack it with sand paper other wise it will scratch it to hell. NOTHING is removing the tarnish - in the odd spot it came clean. Anyone got any ideas or know what will work. Dont mind using a bit of elbow grease :D Last resort was a metal finishing place -- but no idea how much that would cost. Ta Muchly |
wainuitech (129) | ||
| 811663 | 2009-09-18 23:37:00 | Its stuffed. | Metla (12) | ||
| 811664 | 2009-09-18 23:44:00 | Back when I was a coppersmith we used to immerse copper in a weak solution of Hydrchloric acid. About 5% from memory. Takes the tarnish off nicely. | Sweep (90) | ||
| 811665 | 2009-09-18 23:46:00 | Hmmmm Hydrchloric acid -- can it be brought or better to take a professional service. | wainuitech (129) | ||
| 811666 | 2009-09-18 23:47:00 | Hmmmm Hydrchloric acid -- can it be brought or better to take a professional service. It's sold as "spirit of salts" at paint shops or hardware stores. Mitre10 used to sell it - not sure if they still do. |
somebody (208) | ||
| 811667 | 2009-09-18 23:51:00 | Cool - I'll duck across to Mitre10 - its just down the road and ask. When I used to work at railways years ago (coachbuilder) we had cleaning baths there, some damn powerful stuff. Like every thing - dont use certain skills, they get forgotten. PS: THATS where that " get a bigger hammer" comes from in my sig :lol: |
wainuitech (129) | ||
| 811668 | 2009-09-18 23:59:00 | You don't want concentrated Hydrochloric acid. A 5% to 7% solution will do the job. Use gloves while handling. | Sweep (90) | ||
| 811669 | 2009-09-19 00:03:00 | A compound called deoxidine 626 is what I use to clean up tarnish on brass | prefect (6291) | ||
| 811670 | 2009-09-19 00:11:00 | I think the metal brush would have buggered it. I would have used Brasso with a polishing pad on drill,use it all the time. |
Cicero (40) | ||
| 811671 | 2009-09-19 00:19:00 | A few years back (15) I got hold of an old copper out of the type of copper used as washing tubs....the ones where the copper was encased in concrete and a fire lit underneath. I took it to a metalsmith's place here in Dunedin and had them polish and put feet on it so that we could use it as a wood bin/bucket. They did an excellent job in "antiquing it" ie..polishing the copper and treating it so that it had an element of black in it. We were thrilled with the result...and I think it cost about $60-70 to get done. Get a quote: IMHO it would be worth it :) | smurf (6545) | ||
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