Home Forums Explore Media Watercolor The Learning Zone Advice for painting watercolour over sketches

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  • #1499581
    Float On
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        I’ve recently found time for art again after a couple of decades as an adult falling out of practice. I’ve been teaching myself how to use gouache and watercolour online but I feel like I’m still finding my feet in choosing a medium that works for me.

        A lot of people seem to want the sketches they use for watercolour paintings to disappear but I like a more illustrative style where a loose drawing is still visible and watercolour is painted over the top. People seem to use ink in combination with watercolour (line and wash) but I was wondering if anyone could recommend a type of pencil/pastel/crayon etc. that works well with watercolour in the same way:

        – Something fairly dark/black that will still have prominence after watercolour has been painted over it (i.e. darker than standard graphite pencils)
        – Something that can be erased in the drawing stage
        – Something that won’t smudge/bleed into the watercolour when you start painting over it

        I bought a Derwent pastel pencil yesterday and did some experimenting. It did smudge a bit after I painted over it with my watercolour. I tried spraying it with fixative before painting and this did stop the watercolour smudging it. The fixative caused my watercolour paint to take longer to dry/absorb into the paper but I don’t think this is necessarily a bad thing, as one of my struggles is paint drying too fast.

        My second question is, would there be any reason not to draw with pencil, spray with fixative and then paint with watercolour? Would the fixative have any negative impact on my painting over time?

        Cheers.

        #1499594
        art magenta
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            Colored pencils come either as oil or wax based, I believe. Either of them may do the job you’re looking for. I have read that the oil-based pencils show a deeper saturation. I can’t imagine that an oil-based pencil drawing will wash away with water like a pastel pencil would.

            Pastels are very much like watercolors. They often share a gum Arabic binder. I’d use pastel pencils with watercolor if I wanted the two to blend.

            A quick internet search for oil-based colored pencils should put you on track. I’d get a few open stock and put them to the test. And I, personally, would simply avoid using fixative here. Why complicate the process? The older fixatives often included a natural resin which may darken over time.

            Let us know which colored pencil(s) you choose and how well they perform.

            #1499724

            I don’t mind the lines, in fact, I often use ink. An alternative is to use a light-coloured watercolour pencil which disappears when painted.

            Doug


            We must leave our mark on this world

            #1499726
            marioz
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                I’ve used Faber-Castell Polychromos (oil-based, I believe) in the way you describe, and they resist smudging pretty well. Plus, almost all colors are lightfast. Of course no oil/wax-based pencil can be erased so easily as graphite.

                #1504863
                edmund ronald
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                    platinum carbon waterproof ink

                    My virtual sketchbook, one a day https://www.instagram.com/edmundronald/

                    #1514948
                    K12144
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                        I know someone who likes the General’s Carbon Sketch pencil, I believe it is, for adding really dark darks to his pencil drawings– he describes it as being like a cross between graphite and a colored pencil.  However, he doesn’t use it under a wash so I don’t know how it works for that.  If I ever get him to let me try it, I’ll try to remember to give that a whirl and report back.

                        [FONT=Book Antiqua]--Kat :cat: :music:

                        #1541584
                        txomsy
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                            Another possibility would be to first draw in pencil, then pass over it with a pen and a suitable waterproof ink (like India ink on a dip pen or, as mentioned, Platinum Carbon Black, or any other such in a fountain pen). Then, once the ink is dry (shouldn’t take excessively long) paint over it with watercolor.

                             

                            #1543266
                            oldey
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                                What Edmund and txomsy said.  Platinum Carbon ink is the most waterproof I have found along with Yasutomo Sumi Ink which I use for Gongbi Painting.  Find the right extra fine nib for your pen.  A lot of writing pens are not going to be that fine.

                                Another option is a Micron 005 pen.  Archival ink.  Microns come in lots of sizes and colors.

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