Excellent Heat Resistance
Polyurethane dispersions have good heat resistance as supplied but it can be improved
to meet rigorous high temperature application requirements through the use
of polyisocyanate crosslinkers. The systems cure at room temperature over
a period of a few days to achieve superior final performance.
You can witness the difference between the one- and two-component systems for Products
A & B in Figure 1 below:
Figure 1: Significant Heat Resistance improvement
for Product A & B using a crosslinker (2-component)
