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[Fuji Silysia Chemical] A registered trademark for a moisture sensitive silica amorphous silica material used to buffer changes in humidity. Art-Sorb is composed of amorphous silica blended with small amounts of hygroscopic salts (Lithium chloride). It is available as beads, sheets or cassettes that have been preconditioned to specific humidity levels between 40-70% at intervals of 5%. Art-Sorb absorbs and desorbs moisture to maintain the humidity levels to within +/- 2% of the preset value until it has reached its capacity. It may be reconditioned as needed using an oven or by misting with water to reach the appropriate water to volume proportions specified in the manufacturer's technical information sheet. Art-Sorb is dust-free and relatively unaffected by temperature changes. Art-Sorb sheets are composed of nonwoven PE/PP fibers loaded with silica. The cassettes contain Art-Sorb beads encased in Art-Sorb sheets held in a cardboard holder.

Art-Sorb Cassettes
Art-Sorb Sheets

Synonyms and Related Terms

Art Sorb (sp); ArtSorb (sp); silica

Hazards and Safety

Long Life for Art: MSDS 2002

Resources and Citations

  • Marie Svoboda, Conservation Survey Index, unpublished, 1997
  • Conservation Support Systems, Catalog, 1997
  • Teri Hensick, contributed information, 1998

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