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jjang
Posts:1
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| 08/12/2007 12:49 PM |
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i was wondering whether anyone might know how to fix chalk pastel onto a board. i need to make some permanent signage. Does regular artist fixative work? Would it mess with the vibrancy of the chalk once dried?
any info would be much appreciated.
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Llarian
Posts:44
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| 08/18/2007 11:13 AM |
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You dont say what type of signage you are making, i.e. interior or exterior, glazed or unglazed, etc. or what kind of "board" you are using. You also refer to "chalk pastel." Chalk is basically dyed with impermanent dyes, and will not do for anything but temporary applications like painting sidewalks. Soft pastel however is pigment with very little to no filler or chalk, that has just enough binder to make it stay in a stick form. The lightfastness and permanence of soft pastel is determined by the inherent permanence of the pigments used.
That said, pastel is one of the most permanent of mediums as long as it is applied to a suitable support and glazed and framed appropriately. This means framed under glass, and put on a support with sufficient tooth to hold the particles.
The use of fixatives has been argued for years. Fixative changes the quality of the pastel, sealing the particles together and eliminating the air pockets around the particles that are responsible for allowing the light to travel around and between particles which accounts for pastel's particular luminosity and delicacy and subtlety. So, yes it does darken the work and changes the particles to be more like a paint film than soft pastel. However it does contribute to keeping it on the support, and for adding extra "tooth" to pastel saturated areas, allowing for additional layers to be added. To compromise, many artists paint the darks first and fix them, and add lights last and do not fix them.
Now, I said all that to say this- real soft pastel to my mind is not the best medium for signage, especially if it is to be used outdoors, or unglazed. If I knew more about why it is necessary to use soft pastel, perhaps I could help you more.  |
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gene
Posts:1245
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| 08/19/2007 4:51 PM |
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| There is a very good pastelist named Sandy Jackoboice who has developed a way to varnish her pastel paintings. She had an article printed in the Pastel Journal quite a few years back explaining the process. You might look up her website by googling her name. She may mention the process. I know she gives workshops teaching people how to do it. Hope this helps.................Gene |
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