Name: Dow DOWSIL 163 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow DOWSIL 163 Defoamer

Highly effective silicone-based defoamer for rapid foam knockdown and long-term foam suppression.
Excellent compatibility with water-based systems, including acrylics, vinyl acetate copolymers, 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 163 Defoamer

Chemical Type	Silicone oil 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
Specific Gravity (25 °C)	0.98–1.02 g/cm³
Viscosity (Brookfield, RV, spindle #3, 20 rpm, 25 °C)	500–1,500 cP
Active Content	25–28 wt%
Primary Applications	Waterborne coatings, adhesives, construction chemicals, textile auxiliaries

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