Archival Methods Onyx 11x14x4" Portfolio Box, 11.25x14.25", Black Buckram / Black Lining.

Archival Methods Onyx 11x14x4 inch Portfolio Box, Black Features

• Box core is Kappa binder's board (0.1), a bookmaking board with no glue between layers.
• Lined with 80 lb. acid- and lignin-free paper.
• PAT tested and passed.
• Covered in library quality F-Grade Buckram (poly-cotton) with a moisture-resistant, 100% aqueous acrylic coating.
• Adhesive is pH balanced and buffered, less than .0008% sulfur content.
• Reinforced hinge.
• Close-tolerance construction to keep out dust.
• Hinged design allows top to fold open and lie flat, providing easy and instant access; this design, moreover, facilitates transfer of stored items from one side to the other for smooth and professional presentation.
• An additional and important benefit is that photos, transparencies or documents are subject to less physical handling compared to storage in conventional boxes, further reducing any risk of damage.
• More specifically, works in portfolio boxes can be edge-handled with fingers never touching the surface of the work.
• Portfolio boxes are ideal for storing matted or un-matted prints.
• Strong hinge section withstands repeated opening and closing.
• All portfolios are hinged along the longest sides.