How to design a slide switch mechanism to be waterproof -- ideas?

[Aurimas]

I need to protect electronic parts in case from water. The thing is, I need to design slide switch on the cap of the housing. Maybe any ideas?

 

[Tom.G]

These folks enclose the slide handle in a polymer boot.
https://www.e-switch.com/product-catalog/sealed/product-lines/500r-series-slide-switch-sealed-to-ip67

above found with:
https://www.google.com/search?&q=+waterproof++slide++switch
(that's putting {+waterproof +slide +switch} in the Google search field. Without the {})

 

[Baluncore]

Welcome to pF.

Maybe you could use a reed switch with a sliding magnet.
The magnetic field will separate the protected electronics from the external water environment.

 

[berkeman]

Maybe you could use a reed switch with a sliding magnet.

I had a similar idea, but using optical sensors...

I need to protect electronic parts in case from water. The thing is, I need to design slide switch on the cap of the housing.

Welcome to the PF. Can you say more about what you are trying to do? How big of a slide switch, with how long of a throw? What is the environment (other than wet)? What is the illumination like, and what else is nearby the switch? What is the orientation of the switch (horizontal throw, vertical throw, etc.)?