Institute for Conservation of Historic and Artistic Works Objects Specialty Group
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Tricks with Epoxy (and Other Casting and Molding Materials)
Stephen P. Koob
The Corning Museum of Glass
Even the right materials in the wrong hands can spell disaster. This short presentation offers practical tips and procedures to the conservator in order to provide reproducible, error-free and time-saving results, using one of the most difficult materials in conservation, epoxy resins.

Discussion and recommendations for epoxy use include: choice, effect of refractive index, mixing, warming or pre-heating, additives, pigments and dyes, viscosity and application, storage, shelf-life, necessary tools and equipment. Application procedures are discussed for adhesive use, mold making and casting, curing, clean-up and finishing.

Additional tips cover molding materials such as plaster of paris, plasticine, dental wax and silicone rubber. A final discussion on "trouble-shooting" examines problems with epoxy transparency, surface finishing and air bubbles

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