I put it in the bathroom all around the shower and after a year it turned black and came off like a noodle. The part that is permanently in the water, although it turned black, seems to hold well.

It seems to be a very quality product and does what it promises. It has been tested in a shower without any issues.

Use in bathtub to cover gaps. Very good quality. Works easily even by amateurs.

We use it for sealing the exterior pool lighting fixtures and it is permanently exposed to rain. From the first months of product release and onwards, that is, for several years. Both the transparent and the white one. Its lifespan, if the light fixture does not need to be removed for other reasons, is 6-7 months during the summer months, which in combination with temperature fluctuations, pH, and chlorine, is indicative of the product's effectiveness. It may withstand more, however, I do not have relevant experience.