This 50-pack of 24 x 36" Acid-Free Card Stock from Archival Methods is designed to have many uses. The card stock can act as a support, and prevent photographs or documents from bending inside of archival pages or sleeves. Photographs or documents can be mounted onto the stock and used as an album page. The stock can be used as a backing for a photograph inside of a frame. Instead of marking a matted print, you can write on the card stock, for information or easy identification of a print.

The white card stock is made out of alpha-cellulose pulp from purified wood fiber. No dyes, non-bleeding, and no alum were used in the manufacturing process. A lignin- and acid-free stock, it is pH-balanced at 9. Alkaline sizing was used internally and externally on the card stock, which has passed the Photographic Activity Test (PAT), confirming it is suitable for long-term storage. The weight of the card stock is 290 gsm.

Made from Alpha-Cellulose Pulp    Acid- and Lignin-Free    290 GSM Paper Weight    Easy-Folding Paper    Can Be Written On    Mount Documents & Photos    Support for Sleeves or Sheet Protectors    Archival Backing for Picture Framing

Made from alpha-cellulose pulp

Acid- and lignin-free

Buffered with calcium carbonate 2 to 3% alkaline reserve

290 GSM paper weight

Paper pH of 9

Related Questions and Answers

Q: 1. is this the same thickness as "oak-tag"? Is it thinner than 1/8" mat board?

A: Archival Methods Acid-Free Card Stock (24 x 36", 50-Pack, White) is 290gsm 14 point card stock (similar to a standard postcard). It is much thinner than the 1/8 inch mat board.

Q: 2. Are the mats acid free?

A: Yes, they are. Very good quality.

Q: 3. how many 5x7 prints could fit in one envelope?

A: 14 fit nicely but you can put more. I only had 14 pieces of 5x7 prints. I personally put only a few per envelop though

Q: 4. Specs say, "Retractable carry handle folds flat when the case is shipped." It's been delivered to me and the handle doesn't look at all retractable to me. How does it retract? I don't want it to break off during shipping.

A: The handle pushes down flat as shown in the 2nd photo.

Q: 5. Is this product suitable to mount unframed photos on the wall? Flatness, warping, stability?

A: This product is suitable for mounting unframed photos to a wall. They are generally very stable and remain flat within optimal conditions.

Q: 6. Is this a sulfur free tissue and is there a specific tape to hold sheets together with this tissue?

A: The Archival Methods Un-Buffered Archival Tissue Paper has a Sulfur content with a maximum of 0.0004 . We don’t recommend adhesive tape for holding the sheets together.

Q: 7. How do you mount a document on this card stock?

A: If you are looking for ways to mount an image to the Archival Methods Acid-Free Card Stock, a few options I would recommend would be either the Pioneer Photo Albums SGS Square Dual Edge Photo Glue Stick (0.7 oz), B&H # PISGS, the Pioneer Photo Albums Photo Memory Fix (Permanent), B&H # PIPMFP, the Pioneer Photo Albums Photo Memory Fix (Removable), B&H # PIPMFR, the Pioneer Photo Albums Photo Mounting Corners (Box of 250, Clear), B&H # PIPC, or the Lineco Self-Adhesive 0.5 Photo Corners (Ivory, Pack of 252), B&H # LIPCPSI.

Q: 8. open on long or short side?

A: The photograph slides in from the short side.

Q: 9. May this paper be printed on?

A: No, solely for use between prints for preservation purposes.

Q: 10. What are the dimensions of the print window?

A: The window is 12.5 x18.5 inches. It has to cover the print slightly in order to hold the print in place.