What is the Membrane Switch keypads Guide?

2021-03-19

　

Two key points of the Membrane Switch keypads Guide

1,Graphic Overlay Material Selection 
 The proper selection of a graphic material is critical in order to ensure that you will attain both the appropriate aesthetic qualities of the part as well as maximize the longevity of the final product. The two most widely used graphic materials are polycarbonateand polyester. For the purposes of membrane keypads applications, polycarbonate comes in thicknesses of .005”-.030” thick while polyester comes in thicknesses of .005” -.010”. Each can be purchased in the following finishes: gloss, mattes (various levels), and textures. Polyester has greater tensile strength than does polycarbonate, which often allows it to withstand millions of actuations before fracturing. Also, polyester has a greater resistance to a broad range of chemicals. 
Polycarbonate is slightly easier to both print and em boss but the incremental cost advantage of these processing benefits is typically minute. Since membrane switches are custom designed to meet specific applications, each product will have its own criteria to meet. JCF has used its more that 14 years of membrane switch experience to compile some of the most critical guidelines to designing and specifying our products. The use of these guidelines will help ensure that all aspects of product design are considered as to maximize the aesthetic quality, reliability, and efficiency of the final product. 

2,Membrane switch keypads Design and Preparation 

Drawing:Provide drawings that clearly dimension all physical characteristics including color breaks and copy. 

Overlay colors:Identify colors by using Pantone (PMS) and RAL color number or a color sample. It is important to supply the exact standard for which our color match will be evaluated. Be cognizant of how colors contrast with one another in order to maximize the legibility of the text and symbols.

Circuit drawings: customers can provide circuit schematic drawings and requirements 

Artwork:It is possible for customers to supply useable drawing or sample

Borders and Outlines:Avoid outlines close to cutouts or outer edges, or circles within circles, as any misregistrations will be visually accentuated. 
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