Leveling agent is a commonly used coating additive and one of the important varieties in the coating industry. Leveling agent can promote the formation of a flat, smooth, and uniform coating film during the drying and film-forming process of the coating, effectively reducing the surface tension of the coating liquid and improving its leveling and uniformity. However, since the leveling agent is made of active agent, a large number of foam will be produced during the production of leveling agent, and the production of these foam will affect the quality of the product, endanger the production equipment, and even affect the use of the paint industry. To solve the foam problem caused by the production of leveling agent, it is particularly important to select a good defoamer for leveling agent.
Reasons for foaming of leveling agents:
1. Since leveling agent is made of active agent, it will produce a lot of foam.
2. The production of foam caused by excessive surfactant.
The hazards of foaming with leveling agents:
1. Foam produces foam in the process of mixing with other surfactants, which causes volume expansion and reduces the utilization rate of mixing equipment.
2. The persistence of foam leads to poor liquidity, surface defects, unevenness, and rupture during film formation during construction.
3. Causing a decrease in product performance and affecting the appearance of the product, etc.
4. Damaged to production equipment.
Overview of leveling agents and defoamers:
It is a composite product of organic polyether ester, mineral oil, and alcohol, refined through a special process. It has properties such as self emulsification, easy dispersion, strong universality, good defoaming, and long-term foam suppression. It will not cause surface impact and film-forming properties, and has a special effect on water-based coating systems. In the process of coating production, packaging and application, the production of foam is controlled, which has good compatibility with a wide range of systems, a long service life and a wide range of PH.
Application scenarios:
1. Especially suitable for water-based coating systems;
2. Can prevent microbubbles and large bubbles;
3. High defoaming efficiency;
4. High compatibility;
5. Suitable for clear and colored paints;
6. Can be used for airless spray formulations;
7. Surface coatings of thick paste coatings, brushed coatings, and synthetic latex coatings;
8. Latex paint for interior and exterior walls; Waterproof coating, medium high PVC latex paint, relief paint, low gloss enamel anti-corrosion paint, various engineering paints, polyvinyl chloride suspension resin, plant or vegetable detergents, etc
