Re: Hand coating

Gordon J. Holtslander (holtslander@sask.usask.ca)
Wed, 11 Jun 1997 14:01:26 -0600 (CST)

It is possilbe to bend a glass rod with a propane torch. Heat the rod
with a torch at the point you want to bend it, then bend. Be careful the
glass is hot - let the glass cool slowly don't quench it in water - the
rod would shatter.

You might be able to buy glass rods from window/glazier stores.

Gord

On Wed, 11 Jun 1997, Peter Marshall wrote:

> In-Reply-To: <aTtjVGAvWtnzEwfI@dinet.co.uk>
>
> << but I think I
> remember someone asking for help with the technique of coating with a
> glass rod and I don't recall ever seeing a response. >>
> Dennis
>
> You are probably correct. It is however dealt with I think on various of the
> web-sites, FAQs and the archives.
>
> But, briefly:
>
> You need a glass rod or tube that is bent upward at both ends to hold, with
> the straight section being slightly longer than the width of the area you want
> to coat. I normally used it across the widest dimension of the print. Like
> this (but I can't draw the bends as curves).
>
> | |
> |______________________________|
>
> You can buy these or get anyone who has access to a chem lab to bend one - it
> only takes a couple of minutes.
>
>
> Peter Marshall
>
> On Fixing Shadows and elsewhere:
> http://faraday.clas.virginia.edu/~ds8s/
> Family Pictures, German Indications, London demonstrations &
> The Buildings of London etc: http://www.spelthorne.ac.uk/pm/
>

________________________________________________________________________
Gordon J. Holtslander 112 Science Place
HOLTSLANDER@SASK.USASK.CA Department of Biology
URL: http://duke.usask.ca/~holtsg University of Saskatchewan
Saskatoon, Saskatchewan
Tel (306)966-4433 S7N 5E2
FAX (306)966-4461 Canada
________________________________________________________________________