Name: Dow DOWSIL FS 1197 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow DOWSIL FS 1197 Defoamer

Highly effective silicone-based defoamer for rapid foam knockdown and long-term foam suppression.
Excellent compatibility with water-based systems, including acrylic, vinyl acetate, and styrene-butadiene emulsions.
Low dosage requirement—typically effective at 0.05–0.3 wt% active in final formulation.
Thermally stable up to 120 °C, supporting high-temperature processing conditions.
Non-yellowing and non-staining, preserving clarity and color integrity in sensitive coatings and adhesives.

Typical Applications Of Dow DOWSIL FS 1197 Defoamer

Architectural and industrial waterborne paints and coatings.
Adhesives and sealants, especially pressure-sensitive and latex-based formulations.
Textile and leather finishing auxiliaries requiring low-foam processing.
Construction chemicals, including cementitious tile adhesives and grouts.
Water-based inks and overprint varnishes.

Chemical Type	Silicone emulsion (polydimethylsiloxane-based)
Product Form	Opaque white liquid emulsion
Appearance	White to off-white, slightly viscous liquid
pH (1% aqueous dispersion)	6.0–8.0
Active Content	25–28 wt%
Specific Gravity (25 °C)	0.98–1.02 g/cm³
Viscosity (Brookfield RV, 25 °C)	50–200 mPa·s
Storage Stability	Stable for ≥12 months at 5–30 °C; avoid freezing

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E-mail: wangxingqiang@ericwchem.com
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