6 years ago#1
Elcubasigsda
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hello~ i was wondering if anyone could offer some advice on the best way to patina plaster? i have a figure sculpture and would like to add some color and depth. thanks in advance!!!

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6 years ago#2
mysticwizard
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that will be then have a patina applied over? Don

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6 years ago#3
dfc2soft
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hello~ im a sculpture student who used rigid wrap to plaster my friends body. my teacher told me it was very dull. he suggested that i apply regular plaster over the wrap to smooth it out and to 'patina' or apply different layers of color to it. however, he failed to explain how or what type of paint i should use?? im having a bit of a dilemma. it was a two part installation piece that i entered into a juried exhibit. one part was chosen but the figure wasn't, due to the fact that they didn't understand the chosen part and the correlation between the two. my teacher told me to improve the plaster body so it could be in the exhibit with its counter part as intended. what is a metal coating?

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6 years ago#4
David Zachmeyer
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Laura,

The art of putting a surface on plaster to make it look like a patinated bronze goes back a long way.

I would recommend a Dover publication:-

The Materials and Methods of Sculpture - Jack C. Rich ISBN 0-486-25742-8

The basic method is to seal the plaster - my plaster supplier also sells a sealant which comes in a big plastic container with G-4 written on it.

Then I colour the plaster with a size mixed with a green pigment.

Once dried to a tacky finish dust with bronze metal powder.

The finished work can then be treated with wax or coloured wax.

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6 years ago#5
mathman
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thank you all so much!!!! im sure i will have a million more questions as time goes on. thanks again!!!!

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6 years ago#6
Lucretia
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another option is to seal the finished plaster piece. then paint it with an electolye like silver nitrate. Then you can electroplate the surface of the piece with copper or brass. This will result in a surface that actually IS metal, and can be patinated in the normal way. I find that copper is more reactive to patina chemicals, giving you a brighter, more variegated color effect.

Also- there are available polyurethane paint suspensions of metals that that can be sprayed onto just about any surface. Thes look very good, but require special equipment and are costly.

Christopher

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6 years ago#7
minjaekim93
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[It's hard to find anybody willing to do custom electroforming these days, although this is a viable option, and was much practiced formerly. Many 'bronzes', (especially figurative lamps, etc.) found in antique shops were actually made this way.

There is a system made by 'Modern Options' called 'copper topper' which is a thin emulsion (could be acrylic or polyurethane based ) containing powdered copper. Used in conjunction with the same company's premixed patinas, this can give you a patinated surface on any non-pourous (or sealed) substrate. It can be found in art supply stores, or from www.modernoptions.com . It doesn't work right away, or with the first application- you have to keep adding layers and wait till the effect builds up. While the chemicals aren't cheap, they don't require any special equipment.]

Andrew Werby

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