Name: Solvay Rhodoline DF 691 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Solvay Rhodoline DF 691 Defoamer

Highly effective silicone-based defoamer for rapid foam knock-down and long-term foam suppression.
Excellent compatibility with water-based systems, including acrylic, vinyl acetate, 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, suitable for high-temperature polymerization and processing conditions.
Non-yellowing and non-silicone-residue-forming, preserving clarity and surface aesthetics in coatings and adhesives.

Typical Applications Of Solvay Rhodoline DF 691 Defoamer

Emulsion polymerization (e.g., synthetic rubber, latex paints, and architectural coatings).
Water-based industrial coatings and printing inks.
Adhesives and sealants manufacturing, especially pressure-sensitive and construction-grade formulations.
Textile auxiliaries, including dyeing, printing, and finishing baths.
Construction chemicals such as cement admixtures and tile grouts.

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	White to off-white opaque liquid
Appearance	Homogeneous, slightly viscous liquid
Primary Applications	Emulsion polymerization, water-based coatings, adhesives, textile auxiliaries
Key Features	Rapid defoaming, persistent antifoam action, low volatility, non-ionic
Benefits	Improved process efficiency, enhanced film quality, reduced surface defects, easy incorporation
pH (1% aqueous dispersion)	6.0–8.0
Storage Stability	≥12 months at 5–30 °C in unopened original container

Get in Touch with ERICW

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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