Silicone for use underwater?

[Lps_lover12]

I’m looking for silicone for my sump that I can use in water without having to empty it. All the ones I can find need to be a dry surface, wondering if there is any out there that can be applied in water

 

[Reefahholic]

Haven’t seen anything like that. You would be better off just draining the sump and taping it off to silicone. That’s really the only way to get a good seal. Most silicones are toxic until they cure.

 

[mfinn]

I’m looking for silicone for my sump that I can use in water without having to empty it. All the ones I can find need to be a dry surface, wondering if there is any out there that can be applied in water

Never heard of any