Name: Kemira DF-B-990 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Kemira DF-B-990 Defoamer

Highly effective silicone-based defoamer for rapid foam knockdown and sustained foam control.
Excellent compatibility with aqueous systems, including those containing surfactants, polymers, and salts.
Low dosage requirement ensures cost efficiency without compromising performance.
Thermally stable across a broad temperature range (5–90 °C), suitable for both ambient and elevated process conditions.
Non-hazardous formulation with low VOC content, supporting safer handling and regulatory compliance.

Typical Applications Of Kemira DF-B-990 Defoamer

Papermaking – foam control in stock preparation, coating, and white water systems.
Water treatment – defoaming in biological reactors, clarifiers, and sludge dewatering processes.
Textile processing – foam suppression during scouring, bleaching, and dyeing operations.
Industrial cleaning formulations – stabilization of high-sudsing detergents and CIP solutions.
Paints and coatings – anti-foam agent in water-based emulsion paints and architectural coatings.

Chemical Type	Silicone emulsion
Product Form	White to off-white liquid emulsion
Appearance	Opaque, milky, homogeneous liquid
pH (1% aqueous dispersion)	6.0–7.5
Specific Gravity (20 °C)	0.98–1.02 g/cm³
Viscosity (Brookfield RV, 20 °C)	150–350 mPa·s
Storage Stability	Stable for ≥12 months at 5–30 °C in sealed container
Primary Applications	Industrial aqueous processes requiring non-silicone-residue defoaming

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