Polyurethane black material (isocyanate) can be widely used in the manufacture of polyurethane rigid foam insulation materials; it can also be used for building insulation, waterproofing, sound insulation and noise reduction. Rigid foam panels are used in roofs, ceilings, wall panels, and floors. Hard foam-filled hollow bricks are used for walls and are more suitable for storage tanks, pipeline insulation, oil fields and oil pipelines, urban central heating, and pipeline corrosion and insulation. It is also used for refrigerated trucks, air-conditioned vehicles, heat insulation, fragile commodity packaging, etc. Due to its unique composition and structure, it has good foaming flow properties when applied to foam products, and is suitable for the manufacture of products with strict requirements on the flow properties of foamed raw liquids. It is one of the main raw materials for forming rigid polyurethane foams.

