Name: Synthron SF 561 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Synthron SF 561 Defoamer

Highly effective silicone-based defoamer with rapid knock-down and lasting foam suppression.
Excellent compatibility with water-based systems, including acrylics, vinyl acetate, and styrene-butadiene emulsions.
Low dosage requirement—typically effective at 0.05–0.3% w/w in final formulation.
Thermally stable up to 120°C, maintaining performance during high-shear mixing and elevated processing temperatures.
Non-yellowing and non-staining, preserving clarity and color integrity in sensitive coatings and adhesives.

Typical Applications Of Synthron SF 561 Defoamer

Architectural and industrial waterborne coatings (e.g., interior/exterior paints, primers).
Adhesives and sealants, particularly PVA, EVA, and synthetic rubber dispersions.
Textile printing pastes and pigment dispersions for rotary screen and digital inkjet applications.
Construction chemicals, including cementitious tile adhesives and self-leveling underlayments.
Water-based inks and overprint varnishes for flexible packaging and label printing.

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	Opaque white liquid
Appearance	Homogeneous, slightly viscous milky emulsion
pH (1% aqueous solution)	6.5–7.5
Specific Gravity (25°C)	1.01–1.04 g/cm³
Viscosity (Brookfield RV, 25°C, spindle #3, 20 rpm)	500–1,200 cP
Active Content	28–32% w/w
Storage Stability	≥12 months at 5–30°C in sealed container

Get in Touch with ERICW

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Contact With Us:

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