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Archival Methods 100% Cotton Museum Board 11 x 14 2 Ply Bright White Package of 25

100 cotton fiber
Processed with artesian well water - pollutant and alkaline-free
Acid and lignin-free Lignin content is tested by TAPPI 236 cm-85 and has a Kappa number of less than five
Calcium carbonate buffer maintains proper pH levels and protects against airborne pollutants 2-3 alkaline reserve pH 9 -05 acid-free
Pulp-free - Contains no metal particles waxes plasticizers or residual bleach peroxides