Specially formulated for smooth, even, clean application. Strong bond dries wrinkle free - no messy clumps! Ideal for paper, photos, etc. Color glue goes on blue to see exact laydown of glue - disappears completely as it dries! Acid-free: ideal for use with scrapbooks, photo albums and other archival materials. Non-toxic, washable formula is safe for children. CP certified by the A.C.M.I. for both content and quality standards.