There are several Hesse additives that can be included in polyurethane paints to enhance their properties. One such additive is a sun protection agent, which helps to prevent the paint from fading or yellowing due to long-term exposure to sunlight. Another type of additive is a brushing agent, which makes it easier to apply the paint with a brush, resulting in a smoother and more even finish. Finally, there are adhesion agents, which are specifically designed to help the paint adhere to glass surfaces, making them ideal for use in applications such as windows or glass doors. By incorporating these additives into different paints, it is possible to create products that are more durable, easier to work with, and better suited for specific uses.