This is great for shading the Tamiya Acrylic copper. If you want to give your copper pieces a realistic look you can add it in the recesses for shadows or thin it and apply it randomly to give it that dirty copper looks.

Tamiya makes the hobby paint on the planet. Its so easy to work with. The coverage is awesome. At first, coming from Testors, I was hesitant because Testors is so thin and barely covers. Once I used it, it was a game changer. I will be switching all my paints to Tamiya.