Best not to try to make a seal. And reminding you that the nut never did anyway.
The reason I argue against weather sealing rims is that with a lifetime of wet riding (including complete rim submersion) I've never had an issue with water, which evaporates out as easily it gets in. OTOH if you try to seal, it still won't do a good job keeping water out, and may do a better job keeping it in.
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