Grounding electric kettles safely

[Motorbikeman]

Edit.....  I see you choose a different type of element to me with the nut on the inside. 

The reason I voted against ptfe is I don't need it.

All sealing is done on the inside like this. Silicone seals.   

[dcalnan]

Cheers CH, this looks like just the job
http://uk.rs-online.com/web/p/ptfe-tapes/0231964/

Any builders/plumbers supply will have the same thing for 30c