Bond Papers

Originally developed by Dr. W. J. Barrow, this superior grade 20 lb. paper equals or exceeds the specifications for a permanent/durable paper. In tests simulating usage for 300+ years, it neither yellowed nor became brittle. Each sheet is watermarked with Permalife® logo and the date it was manufactured. It is buffered with a 3–4.5% calcium carbonate reserve. pH Value: minimum 7.5–8.0.