U of S | Mailing List Archive | alt-photo-process-l | Re: oilprint second try

Re: oilprint second try


On 6 okt 2008, at 14:06, Kees Brandenburg wrote:

Dag Henk,

For bromoil I'm also using litho inks (charbonel, G&C) and sometimes the non-coloured G&C extender with added powder pigments. I asked this question to know if an oilprint in your opinion, needs the same stiff inks as a bromoil. So your answer is: yes it does. As a listlurker from 'the old days' I had allready seen and printed Klaus Pollmeier's receipe - and wondered if the, maybe more fragile, gelatin of an oilprint indeed needed some little pre- hardening. I noticed that the non-hardened highlight parts in my gelatin layer sometimes don't support heavy inking resulting is a stained paper base in the highlights. So you probably are a carefull 'hopper'.
No, I do not 'hop' at all: RSI is not only an IT-problem ....
So, i use exclusively cheap foam brayers.
Clearing is normally very easy by spraying a film of water over the inked area and go over it with a clean brayer.
Pollmeier uses the hot damp of a small water-boiler, but that was for bromoil (in the case of bromoil you also can use a water temperature to 50 degrees Celsius, with oil-printing i never go above 25 Celsius).
And beyond that, I had bad experience with less 3 layers of at least 8% gelatine (and also with exposure times less than 1200 seconds)

Have you been to eurobrom in Brussels this weekend?



On 6 okt 2008, at 13:13, henk thijs wrote:

Dag Kees,

On 2 okt 2008, at 9:24, Kees Brandenburg wrote:

Hi Henk,

great oilprint!
what inks do you use?
Through the years i used FAUST (when i try to contact them again - there is website in the US- i got no reaction), David Lewis bromoil inks (he has no stock anymore), Graphic Chemical Litho Ink (in Holland : van Ginkel) , Charbonnel litho&etching ink (check Boesner, they have a lot of materials , reasonable prices). The advantage of Faust and Charbonnel was the fact that they offer tubes (ink drying out in cans is a problem).
To stiff the ink i add pure pigment, by-effect is the possibility of changing color .

do you use plain gelatin whithout any hardener when coating your oilpaper?
There is a recipe from the 'old days' of the list from Klaus Pollmeier:

-prepare 140 ml of a 15% gelatin solution;
-add 14 ml of a 15% potato starch solution;
- while stirring, slowly add 14 ml of a hardener , made by mixing 6 ml of a 6% sol. of acetic acid and 8 ml of a 1% sol. of chrom. alum.

From the text ' .... the hardener really helps to avoid blistering and having the gel. detach from the paper base....'

I tried that one, but found no difference to my method:
just 3 times a gelatine layer of about 8% gelatine, with a 6 % potassium dichromate.


On 2 okt 2008, at 00:15, henk thijs wrote:

Sorry, it looks like that FIREFOX wants to have capitals ; when i tested it everything looks right.


I do hope it is ok now,