How PU Oil Resist works in coatings and ink systems

How U Oil Resist works in coatings and ink systems

PU oil repellent mainly works in coatings and ink systems through the following ways:

1、 Improve the leveling and smoothness of coatings

PU oil resistant agents usually have good wetting and leveling properties, which can significantly reduce the surface tension of coatings, making it easier for coatings to form uniform and smooth coatings during the coating process. This helps to reduce defects such as shrinkage and pinholes during the coating process, and improve the overall quality of the coating film.

2、 Enhance the adhesion and weather resistance of coatings

The specific components in PU oil repellent can interact with the resin, pigment and other components in the coating, enhancing the adhesion between the coating and the substrate. At the same time, it can also improve the weather resistance of coatings, including high temperature resistance, low temperature resistance, oxidation resistance, aging resistance, etc., thereby extending the service life of coatings.

3、 Prevent grease contamination in coatings

During the preparation and application of coatings, possible oil contamination in the substrate or coating can affect the adhesion of the coating and the quality of the coating film. PU oil repellent can effectively neutralize or remove these grease contaminations, preventing coating problems such as poor adhesion of topcoat, pinholes, volcanic craters, etc.

4、 Improve the dispersibility and printing effect of ink

In the ink system, PU oil repellent can improve the dispersibility of pigments, prevent the aggregation and precipitation of pigment particles, thereby enhancing the stability and printing effect of ink. In addition, it can enhance the wetting and flowability of ink, making it easier for ink to form uniform and clear printing patterns during the printing process.

5、 Synergistic effect with other additives

PU oil repellent can also synergistically improve the performance and printing effect of coatings and ink systems with other additives such as defoamers and leveling agents. For example, when foam appears in the paint, PU anti oil agent can act together with defoamer to quickly eliminate foam and prevent its recurrence.

In summary, PU oil resistant agents play an important role in coatings and ink systems by improving leveling and smoothness, enhancing adhesion and weather resistance, preventing grease contamination, improving ink dispersion and printing effects, and synergistic effects with other additives. These functions collectively enhance the performance and quality of coatings and inks, meeting the high requirements for coating and printing effects in different fields.