SiwoPUD®-BPUD-1245

When your coating or adhesive needs to do more than just cover—when it needs to cure under heat, resist yellowing, and perform reliably—SiwoPUD-BPUD-1245 delivers on every front. This blocked aqueous aliphatic polyurethane dispersion is designed for applications that demand high-temperature baking and long-lasting performance, all while maintaining a commitment to safety and sustainability.

With a solid content of 45%±1, this advanced formulation offers a rich polyurethane profile suspended in 55% water, eliminating the need for added solvents. That’s right—SiwoPUD-BPUD-1245 is completely free of organic solvents, making it an excellent choice for eco-conscious manufacturers looking for cleaner production options without compromising performance.

The viscosity stays below 200 mPa·s (measured by Brookfield), allowing for smooth handling and consistent application. It appears as a translucent, milky-white dispersion, and its blocked NCO content clocks in at 5.1%, providing the right amount of crosslinking potential when activated. The deblocking temperature sits at 120°C, making it a reliable pick for applications that undergo baking or thermal curing.

One of its standout traits is its non-yellowing nature. In industries where appearance and clarity are everything—think automotive interiors, furniture finishes, or high-end packaging—SiwoPUD-BPUD-1245 maintains its visual integrity even under heat.

This product was built for flexibility in water-based coating and adhesive systems where high-temperature baking conditions are part of the process. Its ability to form tough, thermally-reactive films makes it ideal for industrial-grade applications that demand strength, durability, and environmental responsibility.

Storage note: This dispersion should always be stored in a frost-free environment and kept in tightly sealed containers. Since it contains no preservative, stability is best maintained under controlled conditions.

If you’re working in a field that requires heat-activated coatings or adhesives with a strong, reliable backbone, SiwoPUD-BPUD-1245 gives you the solid content, performance, and thermal stability you need—all without compromising safety or sustainability.