Buffered material: Good for artifacts such as photos; Cellulose fibers such as cotton, flax, linen and jute, as well plant-based specimens.
Unbuffered material: Good for artifacts that contain animal proteins are best stored in unbuffered material. Protein-based materials include wool and silk, as well as animal-based natural history collections, leather-bound books, and textile details such as pearls. When textiles have both cellulose and protein fibers, unknown dyes, or if the fiber content is unknown, choose unbuffered material. Blueprints should always be stored using this material.