This extra heavy weight blotting paper is intended for use to absorb moisture like felt, dried, and reused. It can also be used as a shelf/drawer liner, shipping crate liner and has excellent properties for paper pulping. This material is acid-free and made from 100% cotton linters and specially formulated to help retard deterioration of the cotton fiber. It has a pH value of 7. Each sheet measures 38" x 52" and has a caliper thickness of 100 pt. Full carton of 50 sheets must be shipped via truck line.