This bag of premium blend investment is what you need if you do vacuum and centrifugal casting.  The investment, available in a 10.5 or 44 pound bag, are perfect for most silver and gold casting, and especially for alloys that require higher casting temperatures.  The investment is formulated for easy breakaway during quenching as well as an ultra-fine surface directly out of casting.  The water-to-powder mixing ratios will provide dependable results every time, saving you time and money.  Order today at Stuller.com/tools.