There are three ways to use Alumidust. (1) Brush it on you your silicone mold. It will bond to the Alumisol or any Alumilite casting resins. (2) Mix it into your casting resin or Alumisol. (3) Brush it on the surface of cooled soft plastic lures. You must then quickly pass a heat gun or torch over the surface to briefly remelt the surface of the Alumisol to lock in the Alumidust. Alumidust and Alumilite Metallic Powders are applied the same way. You can also mix colors to create custom colors.