Loxeal 55-03 offers thread sealing and medium strength nut locking properties
You may wish to use this product on the threads of the boiler fittings of your espresso machine to ensure a pressure tight seal if you have reason to undo any of them
The medium strength nut locking properties ensure it will not be an issue when you come to undo the fitting next time, i.e. heat will not be required to break the bond
Certified as suitable for potable water applications
This is a fabulous product and a little goes a long way - my 10mL tube has lasted 5 years