Hi,
Have you considered clear acrylic sheets?
I've been using them for a while on the same UV box that came with normal
glass on it.
The difference is considerable in the UV behaviour. Much better for acrylic.
Flexibility vs. rigidity was solved using a slighter ticker acrylic.
Nuno T.
> -----Original Message-----
> From: Homebrew_PCBs@yahoogroups.com
> [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of DJ Delorie
> Sent: segunda-feira, 16 de Agosto de 2010 21:55
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] UV: alternatives to glass?
>
>
> Ok, shame on me, I broke the glass in my UV box. Too much vacuum.
> We've checked a few local places, the glass they have has UV
> blockers on it. I've got more places to try, but I thought I'd ask...
>
> What else can be used besides glass, which will still pass UV
> without bending or blocking it? Something less brittle, more
> flexible, but still stiff enough to mostly hold it's shape
> (my UV box has a foam gasket along the outside edge of a
> piece of plywood, the glass rests on it and is sucked down
> onto the board).
>
> Even rubber-like flexibility is OK, I suppose - I can make a
> wooden frame to hold the edges and use an even thinner
> gasket, but that's more work, and it means I have to cut up
> my films into individual sections so I don't bend or crease
> them from the shrink-wrap effect.
>
> DJ
>
>
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