100 Half Back CURRENT (Modern) 24pt Acid Free Backing Boards 675HB by E. Gerber

Half Back acid free backing boards are the highest quality backing board available anywhere! Made from 100% acid-free, 24 mil thick cardboard to ensure extra rigidity and protection. Produced with a 3% alkaline buffer throughout and maintains ph of 8.0+ to further ensure the preservation of your collectible. Meets strict U.S. Government standards for archival storage.

Features

• 100% Acid Free Backing Boards
• Protects Your Collectibles from the Effects of Aging
• Produced with a 3% Alkaline Buffer
• Maintains ph of 8.0+
• Meets Strict U.S. Government Standards

Measurements

• 100 Pack
• 6-3/4” X 10-1/2”
• 24 mil Thick Cardboard

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