Archival Methods 32x40" Acid-Free Card Stock, 148gsm, 50/Pack, White

Under the trusted brand of Archival Methods, this 32x40" Acid-Free Card Stock is a reliable and professional choice for all your printing and mounting needs. With a sturdy 148gsm weight, this high-quality card stock is designed to resist yellowing, fading, and tearing, ensuring your prints and artworks remain in pristine condition for years to come.

Crafted from alpha-cellulose pulp derived from purified wood fiber, this card stock is not only durable but also environmentally friendly. Its white color is achieved without the use of dyes, ensuring it is non-bleeding and safe for all types of prints. The card stock is easily creased for folding, making it versatile for various applications.

With a pH level of 9 (+/-0.5), this acid-free card stock is buffered with calcium carbonate, providing a 2-3% alkaline reserve for added protection against environmental factors. The alkaline sizing used in its manufacturing process ensures both internal and external durability, with no alum used, further enhancing its archival quality.

This card stock has passed the rigorous Photographic Activity Test (PAT) ISO IT 18916 (formerly ISO 14523 ANSI IT9.16), a testament to its suitability for preserving photographic materials. Its lignin content is tested by TAPPI 236 cm-85 and boasts a Kappa number of less than five, indicating its low potential for yellowing or becoming brittle over time.

Ideal for stiffening and support inserts for sleeves, sheet protectors, and pocketed pages, this card stock also serves as excellent album pages for mounting photographs or documents. It provides acid-free backing in picture frames and can be written on to add titles or identification information. Choose this 32x40" Acid-Free Card Stock for a reliable, professional, and long-lasting solution for your archival needs.