Reply: The air content in these systems can significantly affect the performance of the final coating. Polyurethane flooring systems combine an attractive appearance with excellent mechanical properties. As a result, these systems are suitable for both industrial and decorative applications. Good application properties require low viscosity, and for ease of handling, fillers or pigments must exhibit good stability. The use of degassing additives, such as Tech-30881, can help improve these properties by enhancing the degassing of the system after application and even during production.

Reply: Polyaspartic formulations offer unique properties that significantly reduce drying time or improve the final surface appearance. To prevent the formation of unwanted foam, Tech-498 can be used in colored polyaspartic formulations. Using Tech-498 results in a foam-free formulation.

Reply: A very important factor affecting all of these defects is surface tension—more specifically, differences in surface tension. The following additives can be used to prevent or minimize these differences in surface tension. We recommend trying Tech-2306.

Reply: This resistance to sedimentation can be achieved by using specially developed additives such as Tech-9022W, which form a network structure within the system and induce pseudoplasticity. Controlled flocculating wetting and dispersing agents, such as the multifunctional Tech-60701, operate on a similar principle. These additives cause dispersed particles to aggregate into a loose structure, which can sometimes result in higher viscosity and good resistance to sedimentation.

Reply: Tech-5010 is a wetting and dispersing agent that can be added during the grinding process to improve the incorporation and stability of fillers and pigments. These additives have the following effects: reducing viscosity, improving flow, increasing filler load, reducing filler settling, and improving color uniformity.

Reply: Filler particles that are not properly wetted, dispersed, and stabilized often result in the following issues: high viscosity, leading to inadequate mixing of the filled polyol with the isocyanate and poor flow properties of the mixture. In contrast, the Tech-5076 wetting and dispersing agent offers the following advantages: higher filler loading, improved flow properties, and uniform mixing of the filled polyol with the isocyanate.

Reply: To ensure uniform dispersion, we recommend adding 0.5% of Tech-598, Tech-5011, or Tech-5076 based on the total formulation. None of these additives have a negative impact on salt spray resistance, and they perform well in gas evolution tests with zinc powder.

Reply: We recommend Tech-2373, an organosilicon molecule containing an epoxy group. Because it contains an epoxy group, it can be incorporated into coatings to produce a permanent effect, which has a positive impact on both ease of cleaning and stain resistance.