These Citadel Layer paints from Games Workshop are designed to be used straight over Citadel Base paints and itself, without any mixing. If you use several layers of this high-quality water based acrylic paint on your models it will create a rich and natural finish that will look as amazing on display as it would 3 hours into a gruelling battle. The paints are supplied in 12ml pots and can be used on any plastic, metal or resin models.