Re: [Marbling] Re: Contaminated size
- I don't need alum as a rule with my acrylics if excess is not used, and the
colors are very bright. It also depends on the paper used.
Oils never need it. If worked with properly and they are not forced into
imitation of traditional historic marbling patterns they have a beauty all
their own, such as the way Kay Radcliffe works with them. I don't believe
them especially environmentally unsound(though I know othere disagree), as
people have used them in art supplies for eons with no especially bad
results, it may be more the additives and thinners that can be toxic if
inhaled or consumed to excess.
Message text written by INTERNET:Marbling@yahoogroups.com
I have only marbled for two years and never full time. Even so I have
produced quite a number of marbled papers WITHOUT EVER using alum. For the
first six months this was because I used oil paint. However, since I
found oil paint being messy, cumbersome, environmentally unsound, I
changed to acrylics. Still no need for alum.
I must admit that I never rinse the papers. I just rake them thoroughly
with a window rake (sorry, I don't know whether that is a word. What I
mean is one of those rubber thingies you use for window cleaning).
Admittedly, when I changed to acrylic paint, I had to adjust my raking
method somewhat and apply less pressure.
Good quality paint is crucial.
At the moment I am teaching my first marbling class at a very poor
center and out of misguided charity I allowed them to order cheap
secondary school quality crap acrylics. OCCASIONALLY the colours rub off,
which has never happened to me before. They also behave very odd when
mixed and we get problems with bleeding,which has never hqappened to me
after I left oil paint.
The bottom line of all this drivel is that I am a living proof that you
don't need alum.
Mind you, I might try alum one day, to see if it enhances colour quality,
But so far I am content with what I get.