Name: BASF FoamStar SI 2201 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of BASF FoamStar SI 2201 Defoamer

Highly effective silicone-based defoamer for rapid foam knock-down in demanding aqueous systems.
Excellent compatibility and long-term stability in anionic, nonionic, and zwitterionic surfactant formulations.
Low dosage efficiency — delivers reliable defoaming performance at concentrations as low as 0.05–0.3 wt%.
Minimal impact on product clarity, viscosity, and surface properties of end formulations.
Compliant with major global regulatory frameworks including REACH and FDA 21 CFR §175.300 for indirect food contact applications.

Typical Applications Of BASF FoamStar SI 2201 Defoamer

Architectural coatings (e.g., interior/exterior paints, primers, and texture finishes).
Industrial maintenance coatings and protective coatings for metal and concrete substrates.
Adhesives and sealants, particularly waterborne acrylic and PVA-based systems.
Construction chemicals including cementitious mortars, tile adhesives, and self-leveling compounds.
Household and industrial cleaning formulations requiring controlled foaming behavior.

Chemical Type	Silicone oil-in-water emulsion
Product Form	White to off-white liquid
Appearance	Opaque, slightly viscous emulsion
pH (1% aqueous dispersion)	6.0 – 8.0
Specific Gravity (20 °C)	1.00 – 1.04 g/cm³
Viscosity (Brookfield LV, 25 °C, spindle #3, 20 rpm)	150 – 500 mPa·s
Active Content	20 – 24 wt%
Storage Stability (unopened, 5–30 °C)	≥ 12 months

Get in Touch with ERICW

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Contact With Us:

E-mail: wangxingqiang@ericwchem.com
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15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China