Mondur PF is a liquid modified 4,4'-diphenylmethane-diisocyanate (MDI) prepolymer used in manufacturing high-performance materials. Mondur PF offers controlled functionality making it ideal for producing polyurethane components requiring flexibility, strength and durability. Its light viscosity allows for uniform dispersion and reaction in composite formulations. Mondur PF reacts slowly with moisture, maintaining material integrity during processing and storage. It can be used to create elastomeric and foam materials with integral skins for applications demanding impact resistance and fatigue performance. As an adhesive additive, Mondur PF enhances bond strength and longevity. Testing is recommended to validate suitability for each specific advanced material application.