Candy Ink is a set of translucent coloured inks made to go over a metallic base. The metal shows through, which produces a depth an opaque colour cannot imitate: magenta crystal, ruby red and a tiger-brown tone that read like colour-anodised metal. The technique belongs on armour plate, helmets, tanks and anywhere a metal surface has to carry a colour of its own rather than be painted over.
The method is the same for every shade. Spray a smooth, glossy metal base first — silver or chrome from the metallic range works best — let it dry completely, then lay the translucent ink in two or three thin coats. Each further pass deepens the shade, so you control saturation by the number of passes rather than by the strength of the ink. The maker's remaining lines, including opaque shades and glazes, are in Green Stuff World acrylic paints.