Author Topic: Silscreen and Writing Ink?  (Read 2662 times)

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Offline Falcon69

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Silscreen and Writing Ink?
« on: October 18, 2014, 08:08:42 am »
What can I use that would be permanent for silkscreen?  I need to write on the silk screen, but when I cast my parts in resin, what I've written on the silkscreen becomes smudged and unreadable as the resin dries.  It's just ClearCast clear resin. 2 part mix 1:1.

I've tried an ink pen, and also a Sharpie.   Anyone have experience with this?
 

Offline nuno

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Re: Silscreen and Writing Ink?
« Reply #1 on: October 18, 2014, 11:47:31 pm »
There's probably the right "paint" for that but here's some ideas anyway... don't know if it would interfere negatively with the resin.

Put a small normal paper sticker and write with a normal pen/pencil.

Print it in a sticker, probably works best with a laser (toner) printer.

Write on the PCB but protect the writing with a bit of glueing tape or varnish.

It may also be the case that you don't give it enough time for the ink to fully dry.
 

Offline IconicPCB

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Re: Silscreen and Writing Ink?
« Reply #2 on: October 19, 2014, 04:50:36 am »
You can get high temperature inks for lead glass work. Baking it onto the PCB may give You a stable solution.
Alternatively You can get touchup soldermask in a dispenser.
It cures in sunlight.
And yet another option is ident ink ( epoxy ink ) store it in an an airtight jar in a fridge and use as needed.  Cure under sunlight ( UV ).
 

Offline ConKbot

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Re: Silscreen and Writing Ink?
« Reply #3 on: November 04, 2014, 09:48:50 pm »
If the solder mask isnt super glossy... pencil?
 

Offline Falcon69

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Re: Silscreen and Writing Ink?
« Reply #4 on: November 05, 2014, 01:06:57 am »
this is for writing on silk screen, not soldermask. the silk screen is over the soldermask i think.

i'll need to find something.  it would be cool if the pcb manufacture could just print that particular silkscreen in sequential numbers on the boards.
 

Offline IconicPCB

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Re: Silscreen and Writing Ink?
« Reply #5 on: November 05, 2014, 06:45:30 am »
There is a product used to paint on glass. A vitreous paint of sorts.

If memory serves it needs to be cured under some heat.

Yes.. here is the link   

http://www.amazon.com/Pebeo-Porcelaine-China-Marker-Anthracite/dp/B00266MNGK

Enjoy the mess... ;)
 


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