Special Effects for Decoration. This kit contains acrylic paints in 4 colors and a medium grain 3D powder. Base Coat: Paint the entire surface of your project with Anthracite. Layering: Then apply lighter color spots on it in layers. Volume: Mix 3D powder with Anthracite and apply it to a couple of parts. Finishing Touches: Then, color it again, only tapping the paint now with the tip of the brush until your surface looks really rusty.