LineCo pH Testing Pen



Want to know if something is acidic and potentially damaging to your artwork? Want to know if your artwork is itself acidic? This pH testing pen is an easy, convenient way to identify safe alkaline paper and unsafe acidic paper. Simply draw a line. If the ink turns purple, the material is most likely safe and archival.

free shipping on orders over $200.00
*in the continental US
Additional Information
Weight 0.1 oz
SKU: OP-431 Category: Tag:


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.