Kraken Bond Black Aquarium Silicone Sealant - (2x10.1 fl. oz.) 100% Waterproof Aquarium Safe Silicone, Non-Toxic Fish Tank Safe Sealant, Fast Curing and Strong Adhesion, 2 Pack

I’ve been using different types of silicone for decades as a plumber, and this is honestly the nicest silicone I’ve worked with. It flows smoothly, tools incredibly well, and leaves a very clean, professional-looking bead with minimal effort. I used it to waterproof an entire large reptile enclosure, including all of the interior seams, and it made the job much easier than I expected. One feature I really appreciate is that every tube comes with a removable tip and sealing cap. It makes saving and reusing a partially used tube simple, which helps reduce waste and saves money. If it proves to be as durable as it was easy to work with, it’ll become my go-to black silicone. Highly recommended.

Very good aquarium silicone! Drys very fast and extremely clear when finished. Would definitely recommend this for resealing a tank

Great adhesion to acrylic

Great product easy to apply strong after it’s dry. Make sure it’s over 48-72 hours. Longer is better than rushing it

I use this aquarium silicone to after I spray the foam. After I apply the silicone on top of the spray foam, I press in cocoa coir for the back round of my paladarium. This stuff is super messy and sticky so make sure to use gloves and a mask too, it stinks. Make sure you have a caulk gun too, apparently that is common sense. It comes out very fast once you hit the trigger so be prepared. It does the job well and I have had no leakage issues.

Works great and dries quickly just don’t breathe while it’s wet

Fast delivery, and a great product.

Works super good!

good stuff !!

So far so good on this silicone. Used it to build my paludarium. A long term review will be helpful, I notice I can peel off bits of this product but I am in a high humidity environment with swings from 60-85% daily. So far no leaking between the water and land zone though, make sure to make it really think and I don't think you will have a problem. If you only use a very thin amount, be very cautious.