Name: BASF Efka SI2741 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of BASF Efka SI2741 Defoamer

Highly effective silicone-based defoamer for rapid foam knock-down in demanding aqueous systems.
Excellent compatibility and long-term stability in waterborne coatings, adhesives, and industrial cleaners.
Low dosage efficiency — achieves optimal defoaming performance at low addition levels (0.05–0.3 wt%).
Maintains clarity and gloss in clearcoat formulations without causing haze or surface defects.
Resistant to shear and thermal degradation during high-speed mixing and elevated processing temperatures.

Typical Applications Of BASF Efka SI2741 Defoamer

Waterborne architectural and industrial coatings (e.g., acrylic, PUD, epoxy dispersions).
Adhesives and sealants, including pressure-sensitive adhesives (PSA) and construction sealants.
Industrial cleaning formulations, such as alkaline and neutral detergents for metal pretreatment.
Printing inks, especially flexographic and gravure inks based on water or solvent/water hybrids.
Construction chemicals, including cementitious tile adhesives and self-leveling compounds.

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	Opaque white liquid
Appearance	Homogeneous, slightly viscous liquid
Primary Applications	Defoaming in waterborne coatings, adhesives, cleaners, and construction chemicals
Key Features	Low-foaming, high-efficiency, shear-stable, non-silicone-residue
Benefits	Improved process reliability, enhanced surface quality, reduced rework
pH (1% aqueous solution)	6.0–8.0
Storage Stability	≥12 months at 5–30 °C in original sealed 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