Had actually purchased this in error - I went for the reduced price and didn't read the info about the uses. I wanted an undercoat for internal walls, and this one is for wood and metal - I haven't tried it for that purpose. I had read some blogs which advised that wood and metal paint could equally be used for walls, and they recommended adding water, but this turned out to be an oil-based paint so the water rose to the top. I was able to scoop it off easily, however, and was able to apply it.
It was confusing in that the Technical Specification said to wash utensils in water - this implies that the paint is water-based.