Celastic

Description

A textile impregnated with Cellulose nitrate. Celastic becomes moldable when activated with heat and tacky when activated with solvent (Acetone or MEK). When dry and cool, it forms a stiff, lightweight shell. It was used by model makers, taxidermists, and orthopedists for lightweight support. Celastic has been used for reinforcing joins on fragmentary archaeological vessels. In recent years, Celastic has been replaced in favor of less toxic materials including Varaform, Wonderflex, and Fosshape.

Synonyms and Related Terms

FORM-FAST®

Physical and Chemical Properties

Celastic is soluble in acetone and MEK

Resources and Citations

• Schenz website: Celastic

• Chris White, Arizona State Museum, Submitted information, March 2008.