Re: ground glass

I've used sand-paper on acrylic plastic - Don't think its nearly as bright
as groundglass - but I've only used groudglass in a lens camera - haven't
compared them properly.

It may work for something cheap and easy.

Gord

On Thu, 20 Dec 2001, G.Penate wrote:

>
> ----- Original Message -----
> From: "Murray" <uptown@uptowngallery.org>
>
>
> > Has anyone ever tried making a 'ground glass' viewing plate (or whatever
> you
> > call it), either with 'non-glare' etched picture framing glass, or
> > subjecting a piece of this or other glass to additional abrasion?
>
> I have used aluminum oxide powder, water to form a paste, elbow grease and a
> small piece of glass to rub the paste in circular motion. You keep doing it
> until the results are even (5 to 10 minutes for 4x5 a piece of glass) . I
> use 600 grit aluminum oxide, would love to try finer grits but haven't found
> locally, besides, 600 gives satisfactory results, you can find the powder in
> science stores and in lapidary supply stores, few ounces is enough for all
> your life time needs. I believe some people have used rubbing compound used
> to polish car paint jobs, I have no experience with that product.
>
> Guillermo
>
>
>
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---------------------------------------------------------
Gordon J. Holtslander Dept. of Biology
holtsg@duke.usask.ca 112 Science Place
http://duke.usask.ca/~holtsg University of Saskatchewan
Tel (306) 966-4433 Saskatoon, Saskatchewan
Fax (306) 966-4461 Canada S7N 5E2
---------------------------------------------------------
Received on Fri Dec 21 00:19:04 2001