Lineco pH Testing Pen

With a simple swipe of Lineco's pH testing Pen, you can determine whether the paper and board you are using is acidic. This easy, convenient method allows you to distinguish the difference between safe (neutral or alkaline) paper and board and acidic materials. Easy to use, simply draw a small line on the material you wish to test. The chlorophenol red indicator solution in the pen will turn purple on any paper with a pH of 6.8 and above. A clear or yellow color indicates the material is probably unsuitable for conservation purposes. Paper can be respectably long lived if is pH is as low as 6.0, especially if is well made and carefully used and stored. In order to last for centuries in today's polluted air, it must have an alkaline reserve and this usually means a pH of 7.0 or greater. Please note: unreliable results may occur on colored or coated papers.
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Lineco pH Testing Pen L533-0023 Lineco pH Testing Pen (List Price :$9.06)            $7.24 Buy Now

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NYC-based and Locally-owned, DaVinci Artist Supply has served students and professionals for more than a decade as “Your Independent Creative Resource.” We are a discount retail store offering Art Supplies and Artist Materials including: Acrylics, Oil Paints and Watercolors; Paint Brushes, Canvas and Linen on the Roll; Printmaking and Decorative Papers; Drawing and Drafting Pencils, Charcoal, Oil and Soft Pastels; Copic Markers, Prismascolor, Faber-Castell, and Kuretake products; Relief and Screenprinting Inks, Basswood and Balsa Wood, Gold Leaf and Hard-to-find specialty items. Note, though we carry many of their products, DaVinci Artist Supply is not affiliated with da Vinci Brushes, or Da Vinci Paint Co. Inventory may vary by location.