Antifoam and Defoamer

Defoamers are often used to reduce detrimental foaming of emulsions. Foaming can be disruptive for handling and storage purposes and can also affect the application properties of the pesticide spray mixture. 

Often used when excessive foam is produced by the spray mixture, the terms defoamer and ant-foam agent are used interchangeably.

The key difference between defoamer and anti-foam is that anti-foam agents can prevent foam from forming, whereas defoamers can control the amount of existing foam. Therefore, anti-foam agents prevent foam formation while defoamers reduce existing foam.