Seals perfectly

I have brought the paste to a replacement exhaust at the joints properly sealed, as this otherwise quite noisy. The paste could be processed well and does not harden too quickly. After curing (but even before) is to perceive a clear difference. One should be careful that not too much water is used, otherwise the paste is too slippery and thus difficult to process.
Do not know any alternatives, but did not know what are these better.