Name: Dow DOWSIL SM 5511 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow DOWSIL SM 5511 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 efficiency—effective at 0.05–0.3 wt% in most formulations—minimizing impact on final product properties.
Thermally stable up to 150 °C, supporting high-temperature processing conditions without degradation.
Non-yellowing and non-staining, preserving clarity and color stability in sensitive coatings and adhesives.

Typical Applications Of Dow DOWSIL SM 5511 Defoamer

Architectural and industrial waterborne paints and coatings.
Adhesives and sealants, especially latex-based and pressure-sensitive formulations.
Construction chemicals, including cementitious mortars, tile adhesives, and grouts.
Textile and leather finishing auxiliaries requiring foam control during padding and coating processes.
Water-based inks and overprint varnishes for flexographic and gravure printing.

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 (25 °C)	1.00–1.04
Viscosity (Brookfield RV, 25 °C, spindle #3, 20 rpm)	500–1,500 cP
Primary Applications	Waterborne coatings, adhesives, construction chemicals, textile auxiliaries
Key Features	Rapid defoaming, lasting antifoam performance, low-foaming addition, easy dispersion

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