What makes a membrane switch waterproof?
A waterproof membrane switch depends on the complete installed sealing boundary: the overlay, laminate edge, windows, tail exit, connector or cable entry, mounting gasket or adhesive, enclosure surface, and assembly process. A sealed-looking face alone does not protect every water path.
Is an IP65 membrane switch also IP67?
Not automatically. IP65 and IP67 address different water exposures, so evidence for one target does not prove the other. Define the required exposure and approve a production-intent interface assembly using the matching test method.
Can a flexible tail exit be sealed against water?
Yes, but the design must control the exit location, adhesive land, bend radius, strain, capillary path, enclosure slot, and any local gasket or potting boundary. The tail should be tested in its installed route rather than as a loose flat sample.
Does the enclosure affect waterproof membrane switch performance?
Yes. Surface flatness, gasket land, corner geometry, fastener spacing, surface finish, venting, drainage, and installation pressure can open or close leak paths. The switch and housing should be reviewed as one sealing system.
How should a washdown membrane switch be specified?
Define where water comes from, spray or jet direction, duration, distance, temperature, cleaning chemistry, frequency, powered state, drainage, and acceptable post-test operation. Then select a construction and evidence plan around those conditions.
What should an OEM send for a waterproof membrane switch quotation?
Send the panel drawing, housing material and surface, cutouts, tail route, connector location, gasket or adhesive concept, target exposure, cleaning method, chemicals, sample quantity, and the installed test or acceptance requirement.