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WANNATE 3B766A is a modified MDI (methylene diphenyl diisocyanate) based isocyanate type used in polyurethane production and formulation.
WANNATE 3B766A is preferred as a high-performance raw material in industrial polyurethane systems.
Key Features:
Balanced Reaction: Offers a predictable and homogeneous reaction rate during processing.
Good Processing Performance: Facilitates shaping and molding of the final polyurethane product.
CASE Systems: Widely used in coatings, adhesives, sealants, and elastomers (CASE) sectors.
Technical Data Specifications (TDS Summary): Appearance: Liquid at room temperature, brownish in color.
Viscosity: Has lower viscosity compared to pure MDI types, which increases processability.
Pot Life (Working Time): Provides controlled reaction by offering a pot life of up to approximately 10 minutes during application.
Stability: Has a modified structure that offers both flexibility and dimensional stability.
Key Application Areas
WANNATE 3B766A is used as a raw material in the following areas requiring high mechanical strength and flexibility:
Polyurethane Foams: Production of molded flexible or semi-rigid foams.
CASE Systems: Polyurethane-based industrial coatings, strong adhesives, sealants, and elastomers.
Construction and Insulation: Construction chemicals, insulation panels, and industrial floor coating components.
Alternatives and Substitute Options
Alternatives to this product vary depending on the stiffness/flexibility requirements of your project:
For Aromatic Adhesives and Coatings: When slower reactivity and high fluidity are required, the Wannate 6916 series from the same manufacturer or similar modified MDI (e.g., coating components in BASF Lupranat or Covestro Desmodur series) can be preferred. Yellowing Resistance and for Outdoor Use (Aliphatic): If the coating in which the product is used is to be outdoors and exposed to sunlight (UV), a switch to aliphatic isocyanate derivatives such as Wannate IPDI or Wannate HT-200K is necessary instead of aromatic MDI.
