Name: Wacker S850 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Wacker S850 Defoamer

Highly effective silicone-based defoamer with rapid knock-down and long-lasting 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% relative to total formulation.
Thermally stable up to 120 °C, maintaining performance during high-temperature polymerization and processing.
Non-yellowing and non-silicone-residue-forming, ensuring clarity and stability in sensitive coatings and adhesives.

Typical Applications Of Wacker S850 Defoamer

Acrylic and styrene-acrylic emulsion polymerization processes.
Water-based architectural and industrial coatings.
Adhesives and sealants, especially pressure-sensitive and latex-based formulations.
Textile sizing and finishing agents.
Construction chemicals, including cementitious tile adhesives and self-leveling compounds.

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	Opaque white liquid
Appearance	Homogeneous, slightly viscous dispersion
pH (1% aqueous dispersion)	6.0–7.5
Density (20 °C)	1.01–1.04 g/cm³
Viscosity (25 °C, Brookfield RV, spindle #3, 20 rpm)	500–1500 mPa·s
Active Content	30 ± 2 wt%
Primary Applications	Emulsion polymerization, water-based coatings, adhesives, construction chemicals

Get in Touch with ERICW

Let competitive chemical materials go global.

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Contact With Us:

E-mail: wangxingqiang@ericwchem.com
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Have a Questions? Call Us:

15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China