Exit Signs and Directional Arrow self-adhesive vinyl signs and labels are designed to conspicuously mark the location of fire hose cabinets. Mounting surface must be clean, dry, smooth, and non-porous. To mount these on a porous surface, such as brick or concrete block, use our Sign On! aerosol adhesive. Self-Adhesive vinyl signs are silk screened with UV inks, then clear laminated for durability and fade resistance.