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Hello dear people from Mitra!
I have a question regarding mixed media basically.
If i have a fully rendered graphite pencil drawing on thick watercolor paper (with all details and deep shadows done, it has a lot of graphite on it) and i want to paint over that with acrylics , what is the best and safe way to do that?
Is it enough to just put a layer of a clear Matte Medium and than to paint over that with acrylics?
Or is it safer to first put a coat of Pastel, Charcoal Fixative ( it is Talens Fixative and it contains : Colourless resins, ethanol ) and i think it is workable fixative, and then to paint with acrylics and to use a acrylic matte medium in it?
Thank you in advance and i hope you are all ok and safe during these times.
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Applying acrylic dispersion medium is perfectly appropriate
but you may smear the graphite. I would think that applying a thin coating of a
fixative would help mitigate this. If it were me, I would use one that is known
to contain an acrylic resin making it eminently compatible. I believe that Lascaux
Fixativ & Varnish and Krylon Crystal Clear Coating are still composed of
B-72 in solvent. You could then apply the acrylic dispersion medium if you wish but this would probably not be necessary.
The rest of your procedure sounds fine
Thank you Brian ! The only problem is that i cant get this fixative with B 72 in my country... Is it chemicaly ok and safe to put an acrylic matte medium over this graphite pencil drawing? I am not so concerned about smearing it , as i am about will it be chemicaly ok, so that acrylic will stick to it and the drawing will last?
Thank you once more
Hello Marko,In our tests we found that solvent-born coatings tent to have better adhesion on graphite than water-born acrylic mediums. Graphite is also used as a dry lubricant and on heavy graphite application you would want to apply a coating that doesn't just sit on top, but really penetrates through the graphite layer. Solvent based fixatives or varnishes penetrate better in general. If your drawing would consist only of a few lines, a water based acrylic medium or paint should be able to 'bridge' over that, but a heavy graphite application should be sprayed with a fixative or varnish first.
Thank you Mirjam! I just have one more question. Since i cant get any fixatives with B 72 component,as Brian adviced above, is it ok to use the Charcoal Pastel Concentrated fixative from Talens ( It contains Colourless resins, ethanol ) ? And then to work over that with acrylics? Or if it is not chemicaly ok and compatible , is it ok to put this Concentrated fixative and then to use Gouache maybe..?