Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Hi Jurgen,

I use some stuff called True Blue, it comes in a 100ml bottle for about 17 euros.
I mix this 1:20 so I get 2 liters of buing chemicals.
This mixture will deteriorate whem exposed to sunlight, so keep it in a box and it will stay good for a very long time.
There will always be some contamination from the boiler or whatever you are bluing and eventually the chemicals will weaken.
I guess that "super blue" will work the same.


Maurice.