Archival Methods 16x20" Acid-Free Card Stock, 148gsm, 50/Pack, White #79-1620

What you're looking at is a pack of 50, 16x20" Acid-Free Card Stock sheets, boasting a substantial 148gsm weight. This premium card stock is designed with archival quality, ensuring it remains free from acid and lignin. Its pristine white color is achieved without the use of any dyes, ensuring it's non-bleeding and safe for all your creative needs.

Each sheet is meticulously crafted from alpha-cellulose pulp, derived from purified wood fiber, ensuring a robust and durable finish. With a thickness of 0.008 of an inch and a 100 Lb basis weight (20x26), these sheets are easily creased for folding, making them versatile for a variety of applications.

The card stock is treated with alkaline sizing, both internally and externally, ensuring its longevity and resistance to wear. Notably, no alum is used in the manufacturing process, making it an environmentally conscious choice. Additionally, it's buffered with calcium carbonate, providing a 2-3% alkaline reserve for added stability.

This card stock is not only pH 9 (+/-0.5), making it acid-free, but it also passes the rigorous Photographic Activity Test (PAT) ISO IT 18916 (formerly ISO 14523 ANSI IT9.16), certifying its safety for storing and displaying photographs. The lignin content is tested by TAPPI 236 cm-85 and has a Kappa number of less than five, further attesting to its archival quality.

Whether you're looking for stiffening and support inserts for sleeves, sheet protectors, and pocketed pages, album pages for mounting photographs or documents, or acid-free backing in picture frames, this card stock is the perfect choice. Plus, it can be written on, allowing you to add titles, identification information, and more. Choose our 16x20" Acid-Free Card Stock for all your creative, archival, and presentation needs.