Completely off topic, but that reminds me of when a mate bought his first house 40 or so years ago.
The bath looked a bit sad, so he spent a couple of hours cleaning it and then for the final lustre, polished it with car wax. It looked wonderful, but it was impossible to get into or out of
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I’ve recently applied Gyeon Q2M Wetcoat sealant and hydrophobicity booster to the inside of my shower and some of the wall tiles. It seems to be doing a reasonable job, but nowhere near as hydrophobic as it is on the car.