Membrane Switches We, at Metromark, have over two decades of experience in manufacturing the industry's most reliable membrane switches. Applying the latest in material technologies and design know-how, we can create a precisely engineered product that fits your needs and your budget. Our mastery of CAD, close-tolerance screen printing and the very latest engineering techniques will keep you on the cutting edge. (Materials can be generated with tolerances of .002.) Plus, our unique CAM system makes soft-tool prototyping easy. Get us involved early, and take advantage of our expertise in selecting textures, materials (adhesive layers from Mactac and 3M) and tactile feedback options, or our cost-saving design ideas. In addition, we can provide a variety of connectors and terminations. Testing Every membrane switch is tested rigorously and each contact, LED and resistance is verified for performance. Environmental testing capabilities are available per customer specification. Incorporating an electroluminescent lamp Adding an EL lamp could affect the tactile feedback of your switch. As the industry's EL lighting leader, we can easily guide you through the process.