Name: Kemira DF-A-681F Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Kemira DF-A-681F Defoamer

Highly effective silicone-based defoamer for rapid foam knockdown and long-term foam suppression.
Excellent compatibility with aqueous systems, including high-solids and high-salinity formulations.
Low dosage requirement ensures cost efficiency without compromising performance.
Thermally stable up to 120 °C, suitable for elevated-temperature industrial processes.
Non-hazardous formulation with low VOC content, supporting sustainable manufacturing practices.

Typical Applications Of Kemira DF-A-681F Defoamer

Papermaking – wet-end and coating applications to prevent foam-related sheet defects.
Water-based paints and coatings – for foam control during production, grinding, and application.
Textile processing – dyeing, printing, and finishing baths where persistent foam disrupts uniformity.
Industrial cleaning formulations – including CIP (clean-in-place) solutions and alkaline cleaners.
Adhesives and sealants – to eliminate entrapped air and surface foam during mixing and dispensing.

Chemical Type	Silicone emulsion
Product Form	White to off-white liquid emulsion
Appearance	Opaque, slightly viscous liquid
pH (1% aqueous dispersion)	6.0 – 7.5
Density (20 °C)	0.98 – 1.02 g/cm³
Viscosity (Brookfield, LV4, 20 rpm, 25 °C)	150 – 400 mPa·s
Storage Stability	Stable for ≥12 months at 5–30 °C in sealed container
Primary Applications	Wet-end papermaking, water-based coatings, textile auxiliaries, industrial cleaners

Get in Touch with ERICW

Let competitive chemical materials go global.

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Contact With Us:

E-mail: wangxingqiang@ericwchem.com
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Have a Questions? Call Us:

15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China