Acidic or alkaline? Now you can distinguish between what paper or board is suitable for conservation with the stroke of a pen. The indicator solution of chlorophenol red will turn a shade of purple on paper with a pH of 6.5 or higher. Any other color would indicate a pH lower than 6.5, thereby acidic and unsuitable for artwork that is meant to last.
Judge the book by its cover! Entrust your manuscripts, cherished worn books and old notebooks to these book coverings that both show off and protect. The strong, close-weave European cloth is backed with acid-free paper for easy application, and the classic colors and matte finish combine to give professional looking results. The Japanese book cloths have wonderful silk textures, dual colors and warm sheens to give any project an exciting upscale look.
Permanently and simply mount photos and documents with these photo-safe, double-sided, pressure sensitive adhesive tabs. Mount the 1/2" square tabs to the back of the photo, then peel away the release liner and press into position. Acid-free and non-yellowing, each box contains 500 tabs.