From Army Painter:

Greedy Gold is a new addition to the Colour Primer range, featuring a unique formulation specially designed to make the fine golden metal flake shimmer.

• Saves time painting - Prime your model with your chosen base colour
• Precision nozzle and fast drying acrylic primer = Perfect coverage!
• 24 Colours, with a 100% matching Warpaint
• Leaves every detail on the miniature in excellent condition.