A glass etching cream e g armour etching cream available on amazon will permanently frost the window in the shower by removing a thin layer of glass leaving a frosted finish.
How to cover glass block window in shower.
Windows in a shower area can be a real challenge to seal and make it watertight so no water gets in behind it in this video i show how to do just that make.
Attach the curtain to the rod before installing it in the window.
Apply removable sun tint film to the glass block window.
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Purchase an inexpensive shower curtain and make it into a window curtain yourself or look for window curtains specifically designed to go in showers.
If you use well water instead of a municipal water supply hard water combined with iron or other minerals can leave glass blocks with rusty black or hard water stains.
The film provides privacy and reduces sunlight filtering through the glass.
Hang sheer draperies like you would at any other window.
Run a squeegee over the glass after showering or wipe it down with a towel.
If you re using a shower curtain measure the window and then cut and sew the shower curtain so it fits in it.
A simple and current option is to mount a curtain rod at the same height as the light bar and in the same finish as the light bar above the glass block.
Such film comes in various colors and shades and is easily to cut to size with scissors.
Peel and stick paper another thought is to cover the blocks with a peel and stick paper.