Copper Platers recommendations?
Chris V | 25/02/2020 23:30:16 |
![]() 313 forum posts 42 photos | Hi Duncan, no I don't have one of those. Turning in for tonight now Cheers Chris. |
Neil Wyatt | 26/02/2020 12:11:54 |
![]() 19226 forum posts 749 photos 86 articles | You need greater distance between electrode and work, the solution looks very strong, make sure the object to be plated is negative. I would degrease then pickle in vinegar or any weak acid until pink, then rinse well in clean water before plating. Neil |
Dave Halford | 26/02/2020 14:05:09 |
2536 forum posts 24 photos | Posted by Chris V on 25/02/2020 19:24:36:
Thank you Dave, I didn't do anything I can remember like this at school so I'm a bit clueless i'm afraid. What does +ve mean please, and by the electrolyte you mean the plating solution? Chris. Chris, Success might depend on the water, you could try distilled in case dissolved lime in the water is causing the problem. |
Chris V | 26/02/2020 14:28:59 |
![]() 313 forum posts 42 photos | Thank you Neil & Dave. I did wonder if the electrode was too close but had difficulty finding a container deep enough but not too large. However having set up as I have I realised I can use a shallower container & fix through the hole I'm currently hanging the leaf from so that its horizontal. Having decided I should remove the roughness achieved so far and struggling to remove it with Autosol (the surface is planished) I remembered I have some pickling salts and was trying that to see if it would help when your message came through Neil. The pickle did not remove the roughness so I will have to remove what I can at least on the outside with a polishing wheel. What should I then use to degrease before pickling again, methylated spirits, turpentine?? I will then bin my solution and start again with a weaker mix. Presumably I should also pickle the electrode? Seems this can be sheet copper as an alternative? Can I use a plastic container rather than glass? Yes we have hard water in Somerset. Would I buy distilled water at a chemist's? Could I use rainwater instead? Cheers Chris. |
V8Eng | 26/02/2020 14:51:08 |
1826 forum posts 1 photos | I have not done any copper plating since schooldays but Gateros Plating have a good problem help and tips page here:- Also supply stuff. No connection to them just a happy customer. Edited By V8Eng on 26/02/2020 14:54:20 |
SillyOldDuffer | 26/02/2020 17:36:02 |
10668 forum posts 2415 photos | Posted by V8Eng on 26/02/2020 14:51:08:
Gateros Plating have a good problem help and tips page here:- ...+1 to the Gateros advice. As Chris has discovered electo-plating isn't quite as easy as it seems. To answer Chris's questions:
Comments.
Don't give up. Dave |
Jouke van der Veen | 26/02/2020 17:42:18 |
203 forum posts 19 photos | Gasoline, white spirit and IPA are good degreasers but after that a proper pickling step is still needed. The copper sulphate can be dissolved in de-ionized water (water for car batteries) instead of destilled water. Edited By Jouke van der Veen on 26/02/2020 17:43:06 |
Chris V | 26/02/2020 19:22:55 |
![]() 313 forum posts 42 photos | Thank you to all above. Yes actually I found Gateros last night and after having a read thought I might as well give up! Not that I don't agree though, there is lots of info and only by persisting will I learn. My original posting was where can I get this done ie recommendations, but I will try again. But I'm looking to spend very little initially to see if I can get a result. So I'm liking the idea of using a battery at least to start with. Thank you for clarifying regarding Switch-mode. Its silver solder and the plating that did adhere seemed to colour the solder ok, so I'm hopeful regarding that. I will have to wait till next week to get out to buy some de-ionized water before trying again. Thank you for explaining what its used for and where to obtain it! I think it was on the Gateros site I read about a milky deposit which I had in places. This being an indicator that the solution is contaminated. If that's the case presumably starting a new mix ie binning the existing would be best? I have more copper sheet than tube so that's helpful, as is knowing I can use a plastic vessel, this will enable the electrode to be further away as I have something more suitable. Thank you again all for your input. I will try again next week. Cheers Chris. |
Jouke van der Veen | 26/02/2020 20:27:37 |
203 forum posts 19 photos | Further current density is an important parameter. This means the amount of Amps/cm2 for the part to be plated. I do not know the amount. Using a battery or a different power supply, you should be able to regulate current. Conductivity of the plating liquid, determined by concentration and pH, plays a role in this. |
fizzy | 26/02/2020 20:49:11 |
![]() 1860 forum posts 121 photos | After soaking a great many boilers in my Suphuric acid bath pretty much everything I put in there comes out with a liberal coating of copper without any additional charge being added. It can make an old manky boiler look like an absolutely new one after a couple of days! I have a plating bath and over the years have plated lots of things. A mistake many people make is too many volts and amps. Low volts, low amps and plenty of time works for me. I used to use an aquatium water heater to help things along but turns out thet arent acid proof for long.
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Neil Wyatt | 27/02/2020 15:25:37 |
![]() 19226 forum posts 749 photos 86 articles | Posted by Chris V on 26/02/2020 14:28:59:
What should I then use to degrease before pickling again, methylated spirits, turpentine?? Washing soda? Neil. |
Chris V | 27/02/2020 15:59:05 |
![]() 313 forum posts 42 photos | Thanks Neil, good to have several options! Chris. |
Dave Halford | 27/02/2020 17:23:57 |
2536 forum posts 24 photos | Chris, From your original post I suspect many platers still in business exist to plate taps etc and as such don't plate with copper, just nickel and chrome. What you would need is someone who does car bumpers, but I have not seen one who offers a postal service. Don't forget plating is only as good as the finish you start with so your item will need to be mirror shiny to start with. |
Tim Stevens | 27/02/2020 17:47:18 |
![]() 1779 forum posts 1 photos | If you are plating with a copper electrode on one side and the workpiece on the other, the solution (of coppoer sulphate) will stay as it is during the process, so you can bottle it and use it next time. Using anything else (such as a paint brush) will have two effects - first the copper in the solution will become impure as metals from the brush etc are dissolved, so it won't work so well next time, and secondly, the plating will not be pure copper and so might not stick or look pretty. Use distilled water (or de-ionised - eg from a dehumidifier) and avoid contacting the solution with anything metal (except pure copper) for best results. Do not, eg, use an old kitchen spoon to measure out the crystals; a plastic spoon is OK though. Finally, do not use too high a voltage - best to use a charger or a torch battery, at 3 volts. 12v might look quicker but will it stick? Cheers, Tim |
Chris V | 27/02/2020 19:26:13 |
![]() 313 forum posts 42 photos | Thanks Tim, more good tips and yes i'm going to try next with 2 x 1.5v batteries. Cheers Chris. |
Howard Lewis | 28/02/2020 18:46:53 |
7227 forum posts 21 photos | If you are using primary cells, use hte biggest that you can get. But even D cells may not last too long before becoming exhausted. Might be better to strap several together in series /parallel to give 3 volts and a gretar capacity. Howard |
Chris V | 29/02/2020 17:30:38 |
![]() 313 forum posts 42 photos | Thanks Howard, yes my plan is to link 2 together, Cheers Chris. |
SillyOldDuffer | 29/02/2020 18:12:59 |
10668 forum posts 2415 photos | Posted by Chris V on 29/02/2020 17:30:38:
Thanks Howard, yes my plan is to link 2 together, Cheers Chris. Primary cells are pricey: From 'Solved examples in Electrochemistry - Example 10' 0.2964 g of copper was deposited on passage of a current of 0.5 ampere for 30 minutes Not much copper will be deposited by a D-Cell! An ordinary Alkaline cell is about 1.5 Amp Hour capacity, meaning it will deposit about 1.8g of copper spread evenly over the immersed area, and cost about £2. (Actually unlikely to empty the battery because the voltage will drop as it discharges.) Could get expensive if it takes several attempts to get the process right and a decent thickness of copper is wanted. Electricity from a power supply is much cheaper - mains electricity is about 13p per kWHour, enough to electroplate at 1000A at 1V for an hour. Dave Edited By SillyOldDuffer on 29/02/2020 18:14:43 |
Jouke van der Veen | 29/02/2020 19:51:55 |
203 forum posts 19 photos | Chris, Go to PF Products Finishing (pfonline.com) and search there for copper electroplating. They give a lot of information about plating conditions. Also for plating in a copper sulphate electrolyte. You find there parameters like concentration, voltage and current density. |
Joseph Noci 1 | 01/03/2020 07:49:24 |
1323 forum posts 1431 photos | Yet another one.. |
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