Prevent unauthorized copies & safeguard confidential business, legal, healthcare & personal documents. Designed to meet & exceed federal guidelines for tamper-resistant security paper set by the Centers for Medicare & Medicaid Services. Colored background with erasure protection. Artificial watermark is coin reactive. Advanced Medical Paper 7 Security Features. Advanced features: All Standard features plus heat-sensitive ink. Sheet / Roll Size: 8.5 x 11; Paper Basis Weight (lb): 24 lb Bond; Paper Grade (gsm): 90 gsm; Paper / Media Color(s): Blue.