Re: Brush Cleaning for the Gum Bichromate Process

On Mar 24, 2006, at 12:10 PM, Bruce.campbell@att.net wrote:

> All
>
> Sorry for such a basic question but I have not seen this addressed
> in any books or articles.
>
>
> For the gum bichromate process
>
> What should you use for cleaning your hake or other types of brush
> after you have applied your gum-pigment/dichromate solution to your
> watercolor paper?

Water. I use hot water, because sometimes my brushes sit for a
while; I wash the whole session's brushes at the same time so often
the gum is set in the brushes, and hot water dissolves it fastest.

>
> Also, if you use the brush technique for applying the gelatin and
> formaldehyde to size your paper, what should you use for cleaning
> your brush.

Don't know about formaldehyde, but for gelatin and glyoxal it's the
same thing: hot water.
Katharine
Received on Fri Mar 24 14:30:17 2006