I would look for a product specifically for under water applications. This product isn't designed for that task.
Yes you can.
Yes, absolutely. I have black tile in my kitchen and I used it for my quarter rounds where it wouldn't attach flush to the tile.
Corra, thank you for your question regarding GE Advanced Silicone 2. This product is not certified for continuous underwater use so we don't recommend using it on your fish tank. If you would like to discuss this further, please contact customer service at 1-866-275-4372.
Keith, based on what you are describing, this is not an appropriate application for GE Advanced Silicone 2 Window & Door. If you would like discuss this further, please contact customer service at 1-866-275-4372.
Will GE advanced Silicone 2 10.1 Black adhere to rubber or Leather?
There are better sealants for this purpose. Look into Henry roof repair.
Ron, thank you for posting your question. GE Silicone 2+ Window & Door has a recommended minimum application temperature of 32˚ F.
Yes silicone is known as the glass mans bondo