Our Alpha Cellulose Blotting Paper is made from 100% alpha cellulose, completely unsized, has a slightly textured surface, and is an acid and lignin free archival paper that is made in the USA. Alpha cellulose blotting paper is an inexpensive alternative to cotton blotters and yet has high absorbency properties. Its primary use is simple: a work of art on paper can be sandwiched between two dry sheets of blotter paper after receiving treatment to dry by acting like a sponge to remove excess moisture or, in reverse, sandwiched between two wet sheets of blotter paper for treatment. Because of its total lack of any sizing (internal and external), our blotting paper has been used successfully for paper-casting or molding shapes and sculpture pieces. The paper has a basis weight of 10.62oz/yd2 (360 gsm) with a thickness of 0.024"/24 mils (0.62 mm). Sold by the sheet or full case (approx. 52 lbs).