[alt-photo] Re: Prints on Aluminum- response

[Rajul]

Hi Andy, Loris and  Diana,

Thank you all for your comments - yes, the real prints do indeed look  
a lot better.

The web images are not too bad, considering that this is my first  
foray into creating a website. I have overlooked many details that  
should have been included but I kept running up against problems  
while editing the contents.

Aluminum plates are lightly but uniformly roughed up with sand paper,  
washed with dilute detergent, dried, wiped clean with 99% isopropyl  
alcohol before use. The plate size is ~11.5" square, permitting a  
print size of ~ 8 x 10.5".

Ground mix:
  			20g Stevenson's Acrylic gesso
			50 ml water
			 25 ml gum arabic (I use Senefelder's)
			 50 ml Gamblin PVA size
			 15 g sieved Sand Flour ( I sieve it through fine nylon mesh)

After mixing the above, once again filter through the nylon mesh  
before coating.


Coating of the mix is done with ~1" diameter plastic tubes that are  
11" long. I pour about 10 ml. of the mix along one
edge of the plate and roll it back with the tube to the closer edge,  
then gently push it to the opposite end till a thin, even layer is  
obtained. This is dried with a hot hair dryer, allowed to air dry  
overnight, then UV'd for 2'.

ANDY, how do you sub with "normal" albumin? Could you describe this  
method and what it is used for? Thanks.


Loris,
Cyano (traditional) was a synch, once I included PVA (2 PVA :1 of the  
rest of the ingredients). Without PVA, the
surface degrades on application of the emulsion. The latter s/b done  
VERY gently with a wetted "Richeson" type brush. Do NOT pour on the  
emulsion, dip the wetted brush in the container with containing it  
and brush back and  forth GENTLY. Doing a cyano before gum makes  
registration easy and permits gum passes using saturated AD.

Hope this helps.

Rajul






On 20-Feb-10, at 6:59 AM, Andy Schmitt wrote:

> Hi Rajul
> The prints look wonderful. I wish I could see them in the flesh.
>
> Since by your description I presume you're not using a "normal"  
> albumen
> subbing on the aluminum would you be willing to share what you are  
> using?
>
> Either way...Thanks
> regards
>
> Andy Schmitt
>            Photographer, Computerist, Slayer of Dragons
>       All opinions expressed are mine...Unless otherwise stated or  
> REALLY
> stupid
>
> Head of Photography, Peters Valley Craft Center
> 2010 schedule available on line at:
>     http://www.petersvalley.org/brochure/photography.pdf
>
>
>
> Message: 3
> Date: Fri, 19 Feb 2010 20:48:49 -0800
> From: Rajul <eyeear at shaw.ca>
> To: alt-photo-process-list at lists.altphotolist.org
> Subject: [alt-photo] Prints on Aluminum
> Hi All,
>
> Hi Everyone,
>
> I would like to share the first set of prints on Aluminum with you.
>
> To see them, please click the link below. The surface textures show  
> visible
> crinkling and/or granularity, making each print unique. The  
> borders, partly
> masked at scanning, reveal the numerous passes the prepared Al  
> surface could
> endure.
>
> Rajul
> http://photoshare.shaw.ca/view/22115982484-1266518863-72057/221159
>
>
>