Greenlite-45-L Gunning Mix is one of your most popular insulating gunnable castables! This 2500F insulating gunning castable offers exceptional strength with low density and is high insulating. Greenlite-45-L is an ideal gun grade monolothic for fluid catalytic cracking units, fluid coking units, and other industrial linings. This product weighs 55LB/25kg. The bag per density is 80lbs/ft3 or 1.28g/cm3.