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From: firstname.lastname@example.org (Harry Conover)
Subject: Re: silkscreening a front panel
Date: 9 Jan 2003 15:12:06 -0800
NNTP-Posting-Date: 9 Jan 2003 23:12:06 GMT
Rene Tschaggelar wrote in message news:<3E1DC453.email@example.com>...
> Richard Soennichsen wrote:
> > Has anyone any experience with doing their own silkscreening? I am trying
> > to silkscreen a front panel. (powder coated alluminum) I used photo
> > emulsion exposed through a mask made out of a transparency on a laser
> > printer. The screen came out very nice. I am having trouble getting an
> > even, non-smudged print. Any help would be appreciated.
> All the answers so far look interesting.
> Any links to products ?
> Is there any silk with photoresist on it ?
Based on my personal experience, the common practice is to employ a
light- sensitive material that is referred to generically as "carbon
tissue" during the exposure process. It is developed it in a dilute
hydrogen peroxide/water solution, and while it's stll spread it on the
screen and let dry.
At one time a common brand name was "Hi-Fi Green" and another less
costly one was "Poly Blue 3." I believe these particular brands were
produced by a firm called Nazdar, but there are many similar products
A few years back my company used these to screen PC boards and front
Occasionally we would use screens made with emulsion coated silk, but
these were generally produced for us by outside firms.
The greatest challenge in hand operated silk screening is getting the
correct spacing from the screen to the work, plus developing just the
right touch. It is a bit like cutting glass or riding a bicycles, in
that it takes some practice to develop this skill, but once learned it
is never forgotten. Others have already addressed the general concept.
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