It's an interesting method....useful for smaller boards and probably a little cheaper than toner paper/hot transfer & foil transfer, but carries a higher risk of flammability and fume inhalation. It will take longer than hot transfer due to the 'drying out process' before peeling the paper. Also, the hot laminator transfer method handles silk screens via foil transfer as well so this can't do that. I do use a bit of acetone to 'clean' boards of toner particles after etching and sanding. A couple drops is all I need. Acrylic bonding of laser cut acrylic also works well with acetone as a solvent 'glue'.
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Re: Heatless (cold) Toner Transfer for PCB making
2016-01-06 by Ancel