Planning an XU4 project for outdoor usage (7" VU7A+ and sealant)

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domih
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Planning an XU4 project for outdoor usage (7" VU7A+ and sealant)

Unread post by domih » Mon Jan 27, 2020 12:32 pm

The outdoor usage will involve a touchscreen 7" VU7A+.

Is this sealant https://www.amazon.com/3M-05206-Marine- ... B0000AY6DG OK to use to seal the edges of the touchscreen?

Goal: not for under water usage but rather minimal protection of the case inside in case of rainy weather.

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Re: Planning an XU4 project for outdoor usage (7" VU7A+ and sealant)

Unread post by odroid » Tue Jan 28, 2020 10:22 am

I think the connectors and plugs on the XU4 and Vu7A PCBs might be the most difficult parts for DIY water-proof mods.

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Re: Planning an XU4 project for outdoor usage (7" VU7A+ and sealant)

Unread post by domih » Sat Feb 01, 2020 11:00 am

Yes, that I understand. For the outdoor use, I'm not going to continue to use the VU Shell but rather a kind of custom Rubbermaid-like box. My original concern is more about the chemical interaction between the sealant and the plastic-like screen/edges of the touchscreen. I guess I'll run a localized test before attempting to attach and glue the whole screen to the box.

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Re: Planning an XU4 project for outdoor usage (7" VU7A+ and sealant)

Unread post by domih » Wed Feb 05, 2020 2:01 pm

For the case, I might just go with a Pelican case such as this one: https://www.ebay.com/itm/Pelican-1170-C ... SwkaNeL10Y. I have to check that the touchscreen fits.

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Re: Planning an XU4 project for outdoor usage (7" VU7A+ and sealant)

Unread post by o_lampe » Thu Feb 06, 2020 9:00 pm

Make sure, the box isn't airtight. Otherwise you might get condensate and corrosion.
Search for " hydrophobe" membrane or such things, which allow airflow but block water.

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