One of our most popular insulating castables! The Greenlite-45-L is an ideal candidate for fluid catalytic cracking units, fluid cooking units, and other industrial linings that require low densities and high strengths. This 2500F maximum temperature insulating refractory castable offers exceptional strengths with low densities and high insulating. This product weighs 55LB/25KG BAGS. *Please note 72 bags fit per pallet. The density of the product is: 77lbs/ft3 or 1.23g/cm3