Looked at Ebay, it says that they can not ship to the US. Ben --- In Homebrew_PCBs@yahoogroups.com, James <bitsyboffin@...> wrote: > > On 01/04/13 05:49, cillino25 wrote: > > I'm very interested on this too, but I never found the right UV > > curable white ink..could you please link the product you're using or > > at least its name? Can I find it on the bay? > > Hi, can be purchased on ebay, in 10ml syringe, and 100gram jars. > > Some ebay items for you (search for "solder mask repairing paint")... > > 10ml Green: 281017402222 > 10ml Red: 170869294776 > 10ml Blue: 180917174704 > > 100g Green: 350753761856 > 100g Blue: 190547440482 > 100g Red: 200784217886 > 100g White: 200622510695 > 100g Black: 281074672686 > > It goes a long way since you want to spread it over really thinly (if > too thick only the top cures leaving the paint actually on the board > uncured and so it chips off. > > To apply it, briefly speaking, cover the board with the ink, or put a > SMALL blob in the middle, put a piece of plastic over it, and smooth it > down so you try and avoid air bubbles, then expose to artwork (pads are > black, the rest is clear). The exposure time is quite long (30 minutes > in sunlight say). Once exposed, peel off the plastic and wipe the board > with some light solvent, acetone, turps, "gasoline" as the ebay sellers > say, the unexposed areas will wipe away. > > The ink does NOT air dry, don't try drying it out before exposing, that > doesn't work. The plastic you choose is important, because the stuff > will bond to many plastics during exposure which is of course bad, > you'll need to experiment with some different plastics to find one that > works (and let us all know what you found :)), I believe that > polyethylene is generally the one to use, maybe polypropylene. I'm > currently using some old plastic press seal type bags I found in my shed > that work (conversely other plastic press seal type bags I had didn't > work, as I say, the exact type of plastic is important). > > > > > [Non-text portions of this message have been removed] >
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Re: Soldermask UV ink/paint/epoxy
2013-04-09 by Ben L
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