Silicone Defoamer

SiSiB defoamers prevent the formation of foam during the production and application of water-based coatings and printing inks. SiSiB defoamers are available as emulsions, solutions or concentrates. All coating formulations (aqueous, solvent-free or solvent-borne) contain a variety of foam stabilizing ingredients from different sources and different chemical structures. Therefore, in theory, each formula can form foam.

Foam is always undesirable in coatings. Foam is formed during the paint production process, resulting in inaccurate filling. In addition, foam will also occur during application, leading to surface defects. The foam in the coating is not only an optical disturbance, but also reduces the protective function of the coating. Therefore, defoamer is an essential ingredient in almost all coating formulations like silicone based roof coating. Many components of the coating system can have a positive or negative impact on its foaming behavior.

Silicone defoamer is a liquid with extremely low surface tension with polysiloxane as the main active ingredient. The chemical structure of polysiloxane is a decisive factor in determining the defoaming efficiency. SiSiB new innovations include vinyl silane modified polysiloxane and fluoro modified polysiloxane defoamers. These products provide extremely low surface tension and strong defoaming behavior.

SiSiB is committed to providing solutions with low volatility, low odor, excellent foam suppression, high compatibility, long-term efficiency, easy handling and environmental compliance.