[Nathanael_M]

Where does this fall on the hazardous/toxicity scale? What kind of off-gassing/risks are there, especially compared to existing high resolution powder based systems?

Disclaimer: I don’t know much about this field, this may be a dumb question.

[dpain]

Much safer than existing powder-based systems. The feedstock is effectively water based so none of the flammability risks of metal powder. No special gases required, no high powered lasers or thermal processing sytems.

That being said it still is an industrial process and requires responsible handling of the feedstock and equipment to ensure safety to personnel and the environment.

[Nathanael_M]

Thanks for the response!

[tastyfreeze]

Metallic ionic solutions are usually strong acids. They are made by dissolving metal in sulfuric or nitric acids. Looks like they are using copper sulfate as the electrolyte. After the copper is deposited you are left with sulfuric acid.