Re: photo emulsion...how can i cheaply make my own resist mask emulsion?

alpha wrote:
>
> hello, i am currently planing to order a photosensitive emulsion called
> sbx photo emulsion from a company called "photobrasive$$$". The product
> is quite expensive and i have never used it before for sandblasting. I
> was wondering if anyone here knows a way to make up my own sollution
> from ingrediants which are easy to obtain on the high street??...below
> is the data *** for the chemical propertys of the product...i was
> wondering if the photo sensitive emulsion which can be bought in any
> photography shop is the same stuff or maybe its completely different
> and unsuitable for sandblasting and making designs using uv light?.
>
> If someone does know a way to cheaply make this stuff and can explain
> in simple terms that would really help me.
>
> hoping someone can advise.....A
>
> The product comes in two parts...emulsion and sensitizer both data
> sheets are below:

You want a photo-initiated polymer (easy) that withstands
sand-blasting (not so easy). If you are making lots of copies of the
same background with small specific changes... wouldn't it be easier
and cheaper to make a silk screen and squeegee on Plasti-Dip or
polyurethane rubber in solvent as the mask (assuming either works)?
Use expensive photoresist to do the small area fine work that keeps
changing.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
.