Insulation Industry Knowledge & Tips | Rosewool Insulation
May 22. 2026
What is the relationship between the density and price of cement insulation material rock wool board? The density of cement insulated rock wool board is significantly positively correlated with its price. Simply put, the higher the density, the more ore raw materials are used inside the rock wool board, resulting in increased production costs and therefore higher prices. Due to the high temperature, vibration, high dust, and long-term continuous operation conditions in the cement industry, industrial grade basalt rock wool (GB/T 11835) must be used for rock wool boards. The higher the density, the better the compression/tensile/high temperature/vibration resistance, and the higher the price. For every 20kg/m ³ increase in density, the wholesale price increases by 15% -20%.