I have used yellow / orange cellophane film purchased from an art shop. This
blocked out the UV sufficiently.
Also bear in mind the people working in the room and don't over do it. If it
is too dark there may be comfort and safety issues.

On Tue, Apr 14, 2009 at 12:04, Kevin Land  wrote:

> Hi
>
> I am setting up a low cost facility for processing with SU-8 photoresist. I
> have read in a number of places of a vinyl film which can be purchased which
> can be stuck to an existing window to provide the necessary UV protection to
> the processing room. I think it needs to shut out all UV below about 450nm.
> I have searched for companies to purchase this from, but so far have not
> found the correct material.
>
> Has anyone on the forum used this material before and can give suggestions?
>
> Thank you
>
> Kevin