Gordon Glass Co. Black Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge

I used this when reconditioning my 2006 50 gal aquarium, which has now been setup for a year after application. I used the clear, it's none yellowing and it's still mostly clear. It's actually mostly opaque in the thicker areas and clear in the thinner feathered out areas. It's easy to apply, well maybe not as easy inside of an aquarium, you need to move quickly and not touch the same areas twice. You may also need some paint thinner or similar solvent based thinner to clean up any mess. It's best to just let it dry, and use a new razor blade to scrape any excess off. Just make sure everything is prepped and very clean prior to application. One tube was plenty for the tank, I used 1" blue tape helping with straight lines. It's not necessary, but it does help make things look better. Cures overnight, but I gave it a few days prior to my leak test. They also have black, but I like the clear better on this tank. I'm sure it would be a great silicone for other applications, so use it up before any remaining in an unopened tube cures inside the tube. It's good stuff and well worth the money and your labor! Cheers!

المنتج ممتاز والبائع جدا متعاون ، انصح بالتعامل معاه وخصوصا ان هذا المنتج غير متوفر في السعودية ، وانا شاريه حق حوض السمك والسيليكون هذا غير سام ولا يسبب اي اضرار للسمك والماي انصح فيه 👍🏻👍🏻

stinks but works like a charm in my fishtanks or reptile terrariums

Works great but smells strong. Use in a well-ventilated room. I would but this again for another vivarium build!

Used it to seal a crack in a heavy plastic water bin that holds the water for my fountain water pump. Waiting to see if it holds for -40 winter coming.