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Old 06-25-2018, 06:38 AM
OkieDave OkieDave is offline
Join Date: Mar 2017
Location: Oklahoma
Posts: 114

The cork itself may be waterproof, but cork sheets are porous; they'll soak up liquids and hold them like a sponge via surface tension. The cork used to seal wine bottles is much more dense, thus no leak.
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