Lineco pH Testing Pen

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Lineco pH Testing Pen is a simple and effective tool to determine the acidity or alkalinity of paper and board materials. Ideal for conservators, archivists, and anyone working wit h preservation materials. Easy to Use: Simply draw a small line on the material you wish to test. Color Indication: A purple line typically indicates pH neutrality; clear or yellow means the material may be acidic and unsuitable for conservation. Preservation Insight: Paper with a pH of 6.0 or higher can be long-lasting if well-made and properly stored. A pH of 7.0 or above is recommended for archival durability. Important Note: This pen is a pH indicator only. Results may be unreliable on colored, coated, or unbuffered materials. Show more