MicroChamber Paper Magazine Size Sheets 8-1/16" x 10-13/16". Protect Your Collectibles from the Effects of Aging. Bring an entirely new level of Protection to your comics. This paper is a thin, pure white, 100% cotton paper and is approximately one half the thickness of a sheet of bond paper (0025-.0028 in., 65g/m2). Microchamber Interleaving paper can be used with all collections, whether paper-based or photographic. You can prolong the life and current condition of your comics by using MICROCHAMBER PAPER. Place one sheet between the front cover and first page and one between the back cover and last page. Some collectors place one sheet in the middle of the book.