Best Exhaust Putty/Paste/Silicone?

[steve-gers]

As above which do you recommend is the best type and also brand to use? Thanks

[A L 3 X]

For stainless or mild?

[steve-gers]

Stainless, it's for a japspeed system.

[A L 3 X]

I use loctite stuff mate, I used the black one and it's been fine but this copper stuff may be better for the hight temps:

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