SiwoPUD®-FB-15

FB-15 is a high-performance, hydrophilic blocked aliphatic polyisocyanate designed for use in advanced waterborne coating and adhesive systems. Supplied as an 80% non-volatile content formulation, FB-15 offers an optimal balance of reactivity, film integrity, and processing ease, particularly for high-temperature baking applications.

Engineered as a hardener for water-diluent, one-component polyurethane stoving coatings, FB-15 delivers excellent crosslinking efficiency at a reduced deblocking temperature of 100°C. This lower activation threshold enables greater formulation flexibility—ideal for substrates or processing environments sensitive to higher curing temperatures.

The blocked NCO content of 8.0 ± 1% and a viscosity range of 2000–10000 mPa s ensures smooth dispersion in aqueous systems, while maintaining consistent film performance.

The resultant coating films exhibit a robust property profile comparable to conventional two-component polyurethane systems, including high crosslink density, excellent flexibility, and superior hardness. These coatings also demonstrate outstanding resistance to water, solvents, and abrasion, making FB-15 a preferred choice in applications demanding long-term durability and environmental resilience.

Typical end-use sectors include industrial finishes, protective topcoats, wood coatings, and flexible adhesives, where controlled curing and film toughness are essential. Its non-ionic nature enhances formulation compatibility across a wide range of aqueous binders and polyol chemistries.

Storage Guidelines: FB-15 should be stored in tightly sealed containers, protected from frost and direct sunlight to maintain its performance integrity and shelf life.

With its optimized curing profile, environmental compliance, and high-performance characteristics, FB-15 stands out as a dependable crosslinking solution for next-generation water-based polyurethane technologies.