Guidelines and precautions for the use of polyurethane leveling agents in water-based coatings

Polyurethane materials are closely related to our daily lives. As an emerging organic polymer material, it is widely used in many fields due to its excellent performance. Among them, in the coatings industry, polyurethane is used to improve the leveling performance of coatings, endowing them with fluidity, leveling, gloss display, and film-forming properties, and thus producing polyurethane leveling agents.

Leveling agent is a commonly used coating additive that can promote the formation of a flat, smooth, and uniform coating during the drying and film-forming process. In polyurethane formulations, leveling agent is required for achieving a smooth and even coating, whether it is high gloss, glossy, semi glossy, matte, or matte powder coatings. 

Polyurethane leveling agents are widely used in various water-based systems such as latex paints and adhesives, especially in various high and medium grade water-based building coatings for interior and exterior walls, water-based industrial paints, water-based inks, water-based adhesives, etc. Widely used, it has good wetting and leveling properties between the coating and the object being coated, effectively overcoming the drawbacks of shrinkage caused by uneven surface tension on the coating surface; And it has a certain thickening effect, which can minimize the splashing of roller coating. Therefore, polyurethane leveling agents play an indispensable role in the coating industry and daily use, as they can increase leveling, improve uniformity, enhance permeability, increase coverage performance, and have good adhesion. 

In terms of application, due to its excellent performance, it is widely used in decorative and protective coatings, such as household appliances, metal furniture, automobiles, instruments and meters, bicycles, sewing machines, electromechanical equipment, light industry equipment, agricultural machinery, building hardware, etc.