Bienfang Ragmount is a heat activated adhesive designed for digital fine art prints and can be used in traditional dry mounting applications including photography. It is totally acid free, with pH neutral adhesive on a 100% cotton rag tissue carrier. Ragmount is a permanent adhesive, bonding at 180 degrees F (82.2 C.) Guaranteed color stability and bond integrity. Roll of tissue measures 24.5 inches (62 cm) wide by 150 feet (45.7 M) long. Made in USA.