Name: Dow DOWSIL DK Q1-1247 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow DOWSIL DK Q1-1247 Defoamer

High-efficiency silicone-based defoaming agent designed for rapid foam knock-down and long-term foam suppression.
Excellent compatibility with water-based systems, including acrylics, vinyl acetate copolymers, and styrene-butadiene emulsions.
Low dosage requirement—effective at 0.05–0.3 wt% in most formulations—minimizing impact on final product properties.
Thermally stable up to 120 °C, maintaining performance during high-shear mixing and elevated processing temperatures.
Non-yellowing and inert in cured films, supporting clarity and color stability in architectural coatings and adhesives.

Typical Applications Of Dow DOWSIL DK Q1-1247 Defoamer

Architectural waterborne paints and interior/exterior flat and low-sheen coatings.
Industrial maintenance coatings, including primers and topcoats for metal and concrete substrates.
Water-based adhesives and sealants, especially PVA and SBR-based formulations.
Construction chemicals such as cementitious tile adhesives, grouts, and self-leveling underlayments.

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	Opaque white liquid
Appearance	Uniform milky dispersion, no phase separation
Primary Applications	Waterborne coatings, adhesives, construction chemicals
Key Features	Rapid defoaming, persistent antifoam activity, low odor
Benefits	Improved gloss uniformity, reduced pinholing, enhanced batch consistency
pH (1% aqueous dilution)	6.0–8.0
Specific Gravity (25 °C)	1.02–1.06 g/cm³

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