How to tell if cardstock is acid-free?
Bright White Cardstock, Letter, 8 1/2" x 11", 65 lb Basis Weight, Smooth, 100 / Pack, Acid-free, Lignin-free, Bright White
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Open Apr 04, 2025 - 06:27 AM
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Apr 04, 2025 - 06:27 AM
To determine if cardstock is acid-free, check the packaging or label for terms like "acid-free" or "archival quality," which indicate the absence of acid that can cause deterioration over time. If the information isn't available, use a pH testing pen designed for paper, which will change color if acid is present.
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