Long Description:
pMDI (Polymeric Methylene Diphenyl Diisocyanate) is a polymeric variant of MDI, with the chemical formula approximately [C₁₅H₁₀N₂O₂]ₙ, consisting of a mixture of monomeric and polymeric isocyanates. Known for its high functionality and excellent reactivity, pMDI is a key component in producing rigid polyurethane and polyisocyanurate (PIR) foams. It is also widely used in wood panel manufacturing, insulation systems, and automotive parts, where strong adhesion and structural performance are essential.

Unlike monomeric MDI, pMDI is typically liquid at room temperature, offering easier handling and processing. It forms strong, thermally resistant polymer networks, making it a popular choice in energy-efficient construction and industrial manufacturing.

Key Features:

High Functionality: Contains multiple isocyanate groups for stronger cross-linking.
Superior Bonding: Provides excellent adhesion to a wide range of substrates.
Thermal Stability: Ideal for insulation materials and applications exposed to heat.
Liquid Form: Easy to store, pump, and apply in automated production systems.
Low VOC Emissions: Helps meet modern environmental and workplace safety standards.
Applications:

Rigid Foams: Used in insulation panels, spray foams, and appliance insulation.
Composite Wood Products: Serves as a binder for OSB, MDF, and particleboard.
Construction Materials: Critical in SIP panels and structural insulation systems.
Automotive & Industrial Parts: Offers lightweight yet durable structural properties.
Opting for pMDI supports high-efficiency manufacturing in construction, furniture, and insulation industries, delivering cost-effective, high-performance solutions with long-term reliability.