SiwoPUD®-FB-12

FB-12 is a high-performance, water-dispersible blocked polyisocyanate designed to meet the advanced demands of modern water-based coating and adhesive systems. Based on aliphatic polyisocyanate chemistry, FB-12 offers excellent compatibility with a wide range of water-based polyols and resins. With an 85±2% non-volatile content and a blocked NCO content of 9.8±1%, it enables formulators to achieve high crosslink density after curing—without compromising stability in storage.

This nonionic crosslinker delivers a robust balance between performance and process efficiency. Its hydrophilic nature ensures good water solubility, while its blocked functionality provides stability in single-component formulations. The product activates at a deblocking temperature of 120 °C, allowing it to perform as a latent hardener in stoving systems where thermal curing is required.

FB-12 stands out for delivering excellent film properties. When used in coatings or adhesives, it contributes to improved mechanical strength, water resistance, and solvent durability. The resulting films exhibit high flexibility and surface hardness, making FB-12 an ideal crosslinker for applications ranging from industrial and automotive coatings to functional adhesives exposed to demanding environments.

It is especially suitable for one-component polyurethane stoving systems, where performance comparable to two-component PU systems is desired without the complexity of mixing. Formulators benefit from ease of handling, longer pot life, and a cleaner, more sustainable water-based formulation approach.

Stored properly in sealed containers and away from frost or direct sunlight, FB-12 maintains consistent performance over time. Its viscosity range of 8000–16000 mPa·s and low monomeric diisocyanate content (≤0.2%) contribute to safer handling and regulatory compliance.

FB-12 is a high-performance solution that bridges the gap between environmental responsibility and premium coating performance in water-based, heat-cured applications.