Ethafoam

A closed-cell polyethylene foam that is chemically inert, easily cut into cradles and cavities, and the standard support material in museum storage; Plastazote is a finer grade of the same chemistry.

Sources

SPNHC — Collection care resources
Collins, C. (ed.) (1995). The Care and Conservation of Palaeontological Material

Cite this article

Stratum Study. "Ethafoam" (Glossary). Stratum Study pack 2026.09, as of 2026-09-16. https://stratum.black/study/glossary/ethafoam. Accessed 2026-09-20.

BibTeX · CSL-JSON

@misc{stratum-ethafoam,
  title        = {Ethafoam},
  author       = {{Stratum Study}},
  howpublished = {\url{https://stratum.black/study/glossary/ethafoam}},
  year         = {2026},
  note         = {Glossary article, Stratum Study pack 2026.09, as of 2026-09-16; sources: stratum. Accessed 2026-09-20.}
}

Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.