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Old 06-02-2019, 06:39 PM
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Use to denote nudity/mature subject matter Underpainting Sketch

17” x 23”
Pastel on panel I prepped for oils.
Does anyone know of any problems painting into soft pastel pencils? There is not enough tooth to continue in pastels.

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Old 06-03-2019, 04:20 AM
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Re: Underpainting Sketch

Boogie, don't do another thing. It's magnicent just as it is! I can't think that painting in oils over would be a problem though, pastel is mainly chalk and pigment isn't it? It would just be absorbed into the paint 😊
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Old 06-03-2019, 04:11 PM
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Use to denote nudity/mature subject matter Re: Underpainting Sketch

Thanks David, I finished it in pastels today, no oils on this one. Maybe I’ll paint it again using oils.

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Old 06-03-2019, 05:33 PM
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Re: Underpainting Sketch

This is really nice ... both versions work but it was worth persevering to add the extra impact and atmosphere with the adding of the pastel colours.


I don't know about working oils into pastel, I think you would lose the initial colour but I think pastel and gouache or acrylic can work OK together.


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Old 06-04-2019, 06:27 PM
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Re: Underpainting Sketch

Really nice. I like the perspective setting.
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Old 06-05-2019, 09:34 PM
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Use to denote nudity/mature subject matter Re: Underpainting Sketch

Mac, Harry,
Thanks for commenting, much appreciated
Working oils into pastels without fixing the pastel pigments would result in losing the pastel strokes, which I don’t want to do. So I did make a test pastel drawing then fixed it with a fine misting of the oil based Rustoleum Matte clear spray paint. From my perspective the spray paint firmly fixed the pastels without losing the drawing and without clogging the little bit of tooth that my grounded panel has. I believe this process will work, and plan to try it in another piece. As far as archival, I have no idea and not much concern.
Here’s the test drawing


Here’s the version of the piece after fixing with the Rustoleum.


The Rustoleum fixed the drawing very well, tougher than my Grumbacher fixative for charcoal and pastel which contains acetone, toluene, and whatever else. you gotta go outside (garage) to spray any of that stuff anyway.
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Old 06-06-2019, 12:03 AM
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Use to denote nudity/mature subject matter Re: Underpainting Sketch

Correction:
Rustoleum clear matte enamel is Acrylic basecresin with Acetone, toulene, whatever. So...since oilbase clear sprays are not readily available, (polyurethane sprays will yellow) I need to change my ground to Acrylic base, probably toned gesso over sealed tempered hardboard. Then I can fix the pastel with Acrylic fixative and use either Acrylic or oil paint.
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Old 06-07-2019, 09:48 AM
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Re: Underpainting Sketch

Love your experiments Boogie I've use bookbinding PVA (non acidic) mixed with water as a ground for oils and it works well. I added some pigment but it should dry clear on its own. It might make an alternative but there again, it might spread the pastel...
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Old 06-10-2019, 06:38 AM
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Re: Underpainting Sketch

Beautiful painting and an interesting discussion on media and techniques.
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