Seeking a cost effective IP67 Enclosure, without using O-Rings

I have a desire to install this in an orchard with harsh chemicals (pesticides, fertilizer) and get at least five years of useful life from the design. Want to avoid O-rings, as they weather, and I don't know the chemical composition of all the pesticides and fertilizers used. Need to withstand occasional water (it will be outside, in the rain, but not submersed).

PCB size can be flexible - the design is about 6 square inches in size.

Needs to be transparent to Bluetooth Low Energy internal antenna (IE, not EMI protection).

Thanks,

wjenning

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0 dougw over 10 years ago

You can try exterior silicone caulking, it can be "opened" if needed without damaging your case.
It may be a good idea to place a dessicant inside to eliminate condensation during thermal cycles.
Make sure your plastic case is rated for more than 5 years of UV exposure. Might be worth painting it with a reflective exterior paint.
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0 dougw over 10 years ago

You can try exterior silicone caulking, it can be "opened" if needed without damaging your case.
It may be a good idea to place a dessicant inside to eliminate condensation during thermal cycles.
Make sure your plastic case is rated for more than 5 years of UV exposure. Might be worth painting it with a reflective exterior paint.
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