1. Stabilization of RH in Exhibition Cases: Hygrometric Half-Time
2. Fome Cor® board is a product of Monsanto Company. It is composed of an extruded polystyrene foam core that has been laminated between two sheets of linear board. The products marketed for artists' use are available in three thicknesses: ⅛″, and ¼″. The liner used on the ⅛″ and ¼″ product is 42-pound natural Kraft while the product has a 50-pound white claycoated liner. The pH of the white liner is 5 to 7. The thickness determines structural stiffness, the thicker boards possessing greater stiffness and higher flexural strength. For additional information, contact Mr. William Bruton, Monsanto Company, E3NF, 800 North Lindberg Boulevard, St. Louis, Missouri, 63166.