I used this sealant to fill in a narrow gap between the faucet and the wall on my bathroom sink. The nozzle is long, and you can adjust the length and thickness of the sealant output by cutting the tip to your needs. It does have a pretty strong odor, but this is to be expected with sealants, and venting the space will eliminate the smell. It is waterproof as advertised and is great for bathroom, shower or kitchen situations.