The role of PU oil repellent in coatings and ink systems

The role of PU oil repellent in coatings and ink systems

PU oil repellent plays an important role in coatings and ink systems, and its main functions can be summarized as follows:

1、 Improve the performance of coatings and inks

Dispersing agent: PU oil resistant agent can effectively improve the dispersibility of pigments and other additives in coatings and inks, avoiding their segregation, floating or precipitation, thereby improving the stability and uniformity of coatings and inks.

Leveling and smoothness: After adding PU oil repellent, the leveling and smoothness of the coating ink will be significantly improved, making the coating more uniform and smooth, and reducing the defects generated during the coating process.

2、 Resolve painting issues

Oil pollution treatment: When there is oil pollution on the substrate, PU oil resistant agent can effectively solve the problems of poor adhesion, pinholes, volcanic craters and other coating problems caused by it, ensuring the quality of coating.

Preventing shrinkage and fish eyes: PU oil repellent has good wetting ability on the substrate, which can prevent defects such as shrinkage or fish eyes caused by pollutants and improve the appearance quality of the coating.

3、 Improve coating performance

Weather resistance: PU oil resistant agents help 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.

Wear resistance: By improving the dispersibility and leveling of the coating, PU oil repellent indirectly enhances the wear resistance of the coating, making it more durable and less prone to scratching.

4、 Widely applicable in various fields

PU oil resistant agents are widely used in various coatings and ink systems that require recoating, such as coating between metals, plastics, and other materials. In addition, it is also suitable as an additive for high-end paints and inks, which can significantly improve the glossiness of products, making them bright and glossy in color.

In summary, PU oil repellent has multiple functions in coatings and ink systems, which can significantly improve the performance of coatings and inks, solve coating problems, enhance coating performance, and broaden application fields.