Electric Paint, the carbon conductive by Bare Conductive, do I really have to go to Amazon to buy it? Well, searching assuming it is at Digi-Key, I found it! I’ve also found a selection of other good chemicals in there, I’ll just summarize for those.
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Other conductive inks, including Circuit Scribe, MG Chemicals, silver-based, copper-based, ones with curing acrylic overcoat, and so on.
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Solder mask that you can draw onto your printed circuit boards for repair.
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Conformal coating: silicone, acrylic, and others.
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Two-part conductive epoxies to use as an alternative to solder when low-temperature conductive bonding joins are required.
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Lithium grease for coating contacts on card edge electrical connectors, cleans oxidation off the surface, lubricates it, and also protects from future oxidation. Though, I have to admit I’m not sure if card edge connectors are supposed to be lubricated electrical contacts.
Yeah, lots of great stuff being sold there in that category of “Prototyping, Fabrication Products > Coating, Grease, Repair,” it’s just not very well categorized. Fortunately, there’s only about 150 products, so you can manually eye through the list to see everything.
20201101/DuckDuckGo digikey conductive ink
20201101/https://www.digikey.com/catalog/en/partgroup/circuit-scribe-conductive-ink-pen/69848
20201101/https://www.digikey.com/en/products/detail/sparkfun-electronics/COM-13254/7349643?s=N4IgjCBcoLQdIDGUAuAnArgUwDQgPZQDa4ArAGwAcIAugL514BMxIAwgPICycAzE6QAstOkA
20201101/https://www.digikey.com/en/products/filter/coating-grease-repair/642
20201101/https://www.digikey.com/en/products/detail/mg-chemicals/8331-14G/2639875
20201101/https://www.mgchemicals.com/downloads/tds/tds-8331-2parts.pdf
20201101/https://www.digikey.com/en/products/detail/mg-chemicals/838AR-P/8038301
20201101/https://www.digikey.com/en/products/detail/caig-laboratories-inc/L260-N2G/10660530
20201101/https://acct113328.app.netsuite.com/core/media/media.nl?id=78673&c=ACCT113328&h=2d48d2b543dcd8fad3a2&_xt=.pdf
This is what I was looking for.
https://www.digikey.com/en/products/detail/sparkfun-electronics/COM-11521/6569362