Is a Structured Siloxane Defoamer Line (SSDL) defoamer – a member of a line of products that spans the application space from strong defoaming to high compatibility. Airase 5300 defoamer is a formulated product that contains no added solvent, hazardous air pollutants (HAPs) or alkylphenol ethoxylates (APEs). This siloxanebased defoamer was developed for use in a wide range of water-based applications. Airase 5300 defoamer is designed for applications where strong defoaming is required with good long-term persistency, especially in high shear applications.