Now I have used for my new pool the old false floor again and resorted to this underwater glue due to the lower price.
I have the glue Extra 5 days, given for curing before I filled the intermediate bottom with sand.
Good 3 months later, the adhesive unfortunately resolves to the first places again, which I think is suboptimal.
Otherwise, the idea of this adhesive is awesome, he hardens under water and does not smell, unlike silicone / acrylic.
However, the adhesive is not quite as strong as real aquarium silicone.
Those who only need to seal this can take like glue, but it should hold together something he is only recommended for small loads.
