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Forum Index : Microcontroller and PC projects : corrosion on components
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palcal Guru  Joined: 12/10/2011 Location: AustraliaPosts: 1873 |
I live near a beach and the pigtails on all my components get corrosion on them over time. I have just had to buy a new breadboard because of faulty connections. What to spray them with, would WD40 be ok, probably a bit messy. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2135 |
I have a lot of resistors with the same problem but haven't found any sprays that work against the oxide film on leads of components. They can dissolve a greasy or oily film on surfaces but the oxide is solid. The method I use is to cut a slot in an abrasive rubber ink eraser with a razor blade. Then run the leads through it a few times before using them. |
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| Andy-g0poy Regular Member  Joined: 07/03/2023 Location: United KingdomPosts: 56 |
https://www.arceurotrade.co.uk/Catalogue/Protection-Cutting-Aids-Adhesives/Shield-Technology Try a vci protection system. It's used to keep tools clear of rust and such like You can also get vci paper from eBay line drawers with it to give protection. the small pots you júst stick in a drawer or toolbox and the fumes give the protection for a year or more. For cleaning leads if you hunt around (I think RS used to do them) thee was a product that was like a wide tweezers, with stainless steel pade at the ends you just dragged the leads through the pads to clean them. I find that a piece of wet and dry works just as well. Any |
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| palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1873 |
If the components were made properly with tinned copper pigtails they would be OK. I have components here from old valve radios and no corrosion. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
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| robert.rozee Guru Joined: 31/12/2012 Location: New ZealandPosts: 2350 |
test the component leads with a magnet... cheers, rob :-) |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4227 |
Store components dry. Plastic bag, silica gel pads. PicomiteVGA PETSCII ROBOTS |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6785 |
For mechanical cleaning you can get track-cleaning rubbers from model railway suppliers. They are nice and abrasive and great for cleaning nickel-silver rails. :) I'll second the use of polythene bags and silica gel though. Cheap. You can dry out the gel packs in an oven now and again. If the bags are a bit of a faff, compartmented plastic boxes can have a gel pack in there. Some of the old component leads used to go black anyway. It didn't matter how you stored them. Usually easy to clean off for soldering though. Some silver-plated components like to blacken too. Edited 2024-04-01 18:44 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| pwillard Senior Member  Joined: 07/06/2022 Location: United StatesPosts: 292 |
I use a product called Tarnx on the old component legs that turn black to bring them back to normal. |
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| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2135 |
Seems rather corrosive. |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6785 |
I'm not sure that Tarn-X is available in the UK now. It might be one of those things that our criminals have found a good use for! Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 857 |
Don't know if this applies but I had some tools that had a bit of surface rust. Read a tip about submerging in white vinegar. They came up a treat...no scrubbing required. |
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| palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1873 |
The vinegar works well when salt is added. I've stripped old copper wire to find it black and unable to solder. Dip it in salt and vinegar and it is back to clean copper. I'll buy some silica gel packs for my parts drawers and see how that goes. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
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| pwillard Senior Member Joined: 07/06/2022 Location: United StatesPosts: 292 |
Tarnx uses thiourea to help with chemically restoring the metal. It also has a warning that thiourea is a chemical on California's list of carcinogens. (So that's probably why its not available everywhere) |
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