screen printing > Non Textile

Printing onto Silcone

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Frog:

--- Quote from: blue moon on October 18, 2012, 04:03:07 PM ---my understanding is that it is very difficult as nothing will stick to it. Make sure you have the right product!

pierre

--- End quote ---

Makes me think of those super slippery snake oils like Slick 50. Liquid Teflon miracles that were supposed to coat parts, even when there was no oil.
If it was so damn slippery, what makes it stay on to "coat" parts?

Inkworks:
It can be done. I've padprinted on elastameric keypads before. At first I didn't see how a silicon pad would transfer ink that adheres to silicone, but it works.

For anything larger than a 2" diameter print I would go with silkscreening as the ink goes on "wetter" and it's easier to get a thicker coat.

http://www.inkcups.com/inks-thinners/screen-pad-printing-ink/si-silicone-ink/Default.aspx

Typically to silkscreen with padprinting inks, you need to load them up with retarder, or at least the slowest thinner available for it. think 300-420 mesh, move fast, keep it flooded.

ps: the ink is damned expensive, right up there with silver loaded conductive inks for membrane switches.

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