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Composition is widely accepted to have been developed by Thomas
Jackson in London around the late 18th century. His son, George Jackson, continued the business. His company, George Jackson, still trades today and supplies composition ornament made to the original methods and recipe.
26:") is a mouldable thermoplastic compound, consisting of powdered chalk mixed with collagen (hide glue), resin (pine rosin) and linseed oil; worked either by hand or more usually pressed into moulds to produce decorative work. It's now most commonly seen as part of
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Some understanding of what each ingredient is doing helps when adjusting the basic recipe, starting with the four essential ingredients:
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171:"Preservation Brief 34: Applied Decoration for Historic Interiors Preserving Composition Ornament"
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picture frames, but was in use for many smaller decorative mouldings from the later part of the
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Example piece in the
Science Museum Group's collection
16:Mouldable thermoplastic used for decorative work
42:A basic compo recipe can have many variations.
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149:. Australia: Skills Publishing Pty Ltd.
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74:With optional ingredients, including:
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122:Step-By-Step Compo and Mold Making
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124:. Loeffler-Valac Industries.
93:prevents formation of mould.
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70:makes the mixture elastic.
64:makes the mixture soft.
147:Framing & Gilding
145:Curson, Paul (1992).
20:Composition ornament
217:Sculpture materials
81:prevents cracking.
187:. George Jackson.
120:Loeffler (1992).
87:tempers the glue.
79:Venice turpentine
58:acts as a binder.
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185:"Composition"
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62:Linseed oil
52:gives body.
107:References
91:Zinc oxide
56:Pearl glue
85:Glycerine
211:Category
34:period.
98:History
50:Whiting
32:Baroque
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28:gilded
68:Rosin
24:compo
151:ISBN
126:ISBN
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