Just got a bottle of this stuff, and I plan to use it sometime this week, so I\'ll post some thoughts on it.
From what I\'ve gathered, though, it is basically an equivalent to the Vallejo Matte Medium, but using the same binder that the rest of the P3 paints use, so it should work best with them. It should be usable with other paints, too, though, as I have used the Vallejo Matte Medium and Glaze Medium with the P3s and had no problems.