Key Specifications/Special Features: Overlay materials: most commonly used base materials for membrane switch panel are polyester and polycarbonate Rear adhesive: 3M, 467MP and 3M, 468MP Standard tolerances: ±0.010 inch Matching colors: Pantone and RAL color matching system Tail, pin and circuit layout: subject to customers detailed requests Type of buttons: Non-tactile Tactile with stainless steel domes Tactile with poly domes on circuit Main properties of custom design