AP Spray: Ultramarine Blue Primer

From Army Painter:

The name says it all... But apart from Space Marines, this is also the perfect colour for Lizardmen, Imp. guard, Cygnar or American Civil War for instance.

• 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.