Thanks Mike.


The problem I face is that because the rest of the desk is screen printed, I
have to print the centre section the same or it's just going to look odd and
no longer a DDA. This rules out any kind of etching process, interesting
though it is.
Also any kind of photoresist means I can certainly spray through the exposed
bits to paint the legend, but at the same time the rest of the photoresist
is covered in paint. So how do you then remove the photoresist without
removing the legend? (assuming the paint seals in the photoresist)

In my Googling I have found paints that can be almost instantly "cured" with
UV. This looks interestimg but it's not designed so that you can easily
remove the uncured stuff - it's for very rapid drying and avoiding oven
baking. Could be worth messing with though.


Cheers,

Gareth.





Gareth.




"Mike Rivers" wrote in message
news:znr1097674421k@trad...

In article
writes:

Thing is, and this explains my post, I'm sure years ago I saw
and article or advert where you sprayed on a paint then exposed it with
UV
and mask or some similar photo process. It was a front panel legending
affair. Maybe it wasn't very good or I was dreaming. Couldn't find
anything in Google.

I made some small tags with a kit from Kepco (which no longer exists,
at least under that name) which included some photo-sensitized black
anodized aluminum sheet. You exposed the areas that you wanted to
mask, then etched the anodizing off with a nasty solution that came in
the kit. Finally, you stripped off the mask and you were done. It
worked pretty well. I seem to recall that they sold the photosensitive
masking spray in an aerosol can so you could use it on a custom panel.

I have no idea if it's still available, but if you haven't been
searching for "photo sensitive resist" give that a try.


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