Crafted like a fine book, the Archival Methods Collector Grade Ring Binders are made of high quality binder board core bound in library-grade buckram with acid-free, card stock lining. A premium, slant-style D-ring assembly with rugged tab-actuated locks is riveted to the back cover. D-rings hold more pages than traditional O-rings and keep pages flat. Binders accept pages up to 11-1/4" H x 10-1/2"W.
- Adhesive is pH balanced and buffered,
- Binder construction Kappa binder's board (.120), a bookmaking board with no glue between layers.
- Binder lined with 10 point card stock 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.