On 17/09/09 22:09, Roger Weichert wrote:
> Hi Guys,
>
> I am investigating the possibilty of having some membrane switches 
> made to replace some 'expensive' ones that fail.
>
> They are pretty basic with only four switches, but they definitely 
> need to be heavy duty ... and well sealed as they live in a pretty 
> hostile environment. (You dont have to look too closely on the 
> attached image to see the female version of BS splattered all over them)
>
> Apart from being able to cope with high pressure hoses etc, they also 
> need to be able to cope with heavy handed operators as well  ...  so 
> certainly need to be heavy duty.
>
> What sort of numbers and prices and quality could I expect. Depending 
> on prices, I probably only need about 15 - 30 initially.
>
> Regards,   Roger

In that sort of environment I'd be more tempted to get vandal resistant 
water proof mechanical buttons. They are fairly cheap (few $) and can 
withstand most types of abuse short of a hammer.

Personally I dislike capacitive switches they seem finicky to use and 
prone to delay in sensing.

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