The dichromate in a gum coat is mixed in with a very viscous gum and
watercolor pigment. A foam roller in this case does not create any
spray. Period. Admittedly, if one were rolling the stuff onto the
ceiling in your house, there might be an issue. But when rolling on
to a piece of paper, there is no aerosol created. To worry about this
is a complete waste of time. Alien abduction seems a more likely
cause of harm.
Clay
On Feb 8, 2006, at 3:31 AM, Hellena Cleary wrote:
> I am a little unsure if the objection to using a foam roller is one of
> technique or one of health and safety. As a Temperaprint user it is a
> perfect tool for the technique. Maybe some of those microscopic
> bubbles add
> to the texture effect. As to the fine spray of dichromate being
> harmful, I
> would like to know the opinion of some of the scientific members of
> the
> list. Hellena
> ----- Original Message -----
> From: "Don Bryant" <dstevenbryant@mindspring.com>
> To: <alt-photo-process-l@sask.usask.ca>
> Sent: Tuesday, February 07, 2006 3:19 PM
> Subject: RE: Yupo
>
>
>> Terry,
>>
>>>
>> It remains that I would not use a foam roller for coating dichromated
>> emulsions anymore than I would an airbrush.
>>>
>>
>> I use a micro-fine foam roller to coat gum with and there is no
>> more risk
> of
>> dichromate contamination using those than with a brush.
>>
>> Don Bryant
>>
>>
>>
>
Received on Wed Feb 8 05:44:13 2006
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