Accuform, MFSD921VS, 7" x 10" Adhesive Vinyl Sign: "Emergency Safety Shower" Help employees quickly locate emergency safety shower locations to reduce possible injury. Adhesive Vinyl (VS) Self-stick custom signs. Adhesive Vinyl is a moisture-resistant custom sign material that adheres to almost any flat surface. Adhesive vinyl signs will work for short term outdoor applications, and in moderate temperatures.