You can just use black poster board and duct tape. Cheap, efficient, looks great and easily changed.
Latex will work well for a while, but it doesn't adhere well to glass. Moisture can over time work its way between the paint and the glass and cause bubbling. It's really bad in SW or even really hard FW because of mineral creep. That's why I add the epoxy.painted it with latex mat black, looks a lot better than before. Already had the supplies figured I'd just paint it.
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