Silicone defoamer: Based on polydimethylsiloxane (PDMS), it has excellent high temperature resistance, acid and alkali resistance, and good defoaming and anti foaming ability.

Mineral oil defoamer: The main component is mineral oil or vegetable oil, which is inexpensive but easily affected by temperature, and its effect weakens at high or low temperatures.

Polyether defoamer: taking polyether as the skeleton, it has good dispersion and compatibility, and is suitable for various systems, especially for foam produced during fermentation.

Organic silicon modified polyether: Combining the advantages of silicon and polyether, it has a wider range of applications and stronger stability.

Different types of defoamers have their own advantages in solubility, dispersibility, temperature resistance, chemical resistance, etc. When selecting, it is necessary to consider the specific application scenario comprehensively.