Archival Grade Adhesive - PVA formula and neutral design, safe to your paper and help your art project stay away from chemical corrosion. Your Ideal Choice - Acid free, non-yellowing, dries quick and clear, high lay flat properties remain flexible when dried. Safe to Use - Non Toxic and water soluble, feel free to operate, able to be thinned with water and extend drying time as you desired. Widely Uses - For all types of arts and crafts, photography, scrapbooking, card stocks, bookbinding, paper projects, as well as mounting artwork. SATISFACTION GUARANTEED : TSSART stand behind our products 102% and if for any reason you are not completely satisfied, simply contact us and we'll make it right.