RE: Etching glass

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From: Ole Tjugen (oftjugen@online.no)
Date: 07/29/03-03:09:13 AM Z


The "classic" method is to prepare the glass plate by scrubbing with strong
ammonia, and then with (strong) nitric acid...

Hydrofluoric acid is one of the nastiest chemicals of all. DO NOT EVEN THINK
OF IT.

Ole Tjugen

>===== Original Message From alt-photo-process-l@skyway.usask.ca =====
>Etching glass
><Have you thought to etch the glass surface first - say with hydrochloric
><acid?
>.......................
>Please excuse the correction but I think that should be
> HYDROFLOURIC ACID
>Which may not be stored in glass bottles but those made of guttapercha. It is
>a deadly stuff and is used for etching designs on glassware with beeswax as
>the resist.
> Take care.
> John Grocott


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