Applications › Interfaces & Control Graphics
The overlay is what the user sees and presses on a membrane switch. We print it on flexible polyester or polycarbonate film, reverse side, with white behind the opaque areas, clear or tinted windows for LEDs and displays, and embossed key areas where the drawing calls for them. Medical-grade, hardcoated washdown and UL-recognized films are available for devices that require them.
Typical examples
- Keypad overlays for instruments and controllers
- Replacement overlays for existing membrane switches
- Backlit membrane overlays with selective white
- Overlays for medical and laboratory device keypads
- Appliance and commercial equipment control fascias
Materials, process and quantities
| Materials | Polyester 5 to 7 mil (standard, hardcoated, medical-grade, antimicrobial-treated), polycarbonate 10 mil, UL-recognized switch films; spacer and adhesive stock. |
|---|---|
| How it is made | Second-surface UV print, embossing of key areas, laser cutting, adhesive lamination; backlit and deadfront constructions. |
| Quantities | One piece to prove the fit, then the run. Prototype samples, bridge quantities while a program settles, and recurring releases against a blanket order, each quoted on its own. |
| Options | Rim or pillow embossing, tactile texture zones, selective gloss, backlit legends, color-coded keys, serialized overlays. |
| Who orders this | Medical and laboratory equipment, electronics, appliances, industrial controls. |
What to send
The switch or overlay drawing with key locations and windows, film specification if your file names one, and quantity.
Related applications
- Graphic Overlays (Polycarbonate & Polyester)
- Backlit, Deadfront & Status Interfaces
- Pushbutton, Selector & Keypad Legend Panels
- All Interfaces & Control Graphics
Start a project: Interface & graphic overlay quote. A drawing, a photo or a sample part is enough to begin.
