3M-Spray Mount Artist's Adhesive. Use this to mount art prints; posters; and more! This photo safe adhesive is pH neutral; resists bleed-through; and is repositionable on many surfaces. This package contains one 4 ounce aerosol can of Spray Mount Adhesive. DANGER: Extremely Flammable Liquid and Vapor. Keep away from heat and flame. Contents under pressure. Conforms to ASTM D4236. Made in USA.