Name: Wacker SD850 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Wacker SD850 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—typically effective at 0.05–0.3 wt% relative to total formulation.
Thermally stable up to 120 °C, maintaining performance during high-temperature polymerization and processing.
Non-yellowing and non-silicone-residue-forming, ensuring clarity and stability in sensitive coatings and adhesives.

Typical Applications Of Wacker SD850 Defoamer

Waterborne architectural and industrial coatings (e.g., interior/exterior paints, primers).
Adhesives and sealants, especially pressure-sensitive and PVA-based formulations.
Textile sizing and finishing agents where foam interferes with uniform application.
Construction chemicals, including cementitious tile adhesives and self-leveling underlayments.
Emulsion polymerization processes for synthetic rubbers and latexes.

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	Opaque white liquid
Appearance	Homogeneous, slightly viscous suspension
pH (1% aqueous dispersion)	6.0–7.5
Density (20 °C)	1.02–1.06 g/cm³
Viscosity (25 °C, Brookfield RV, spindle #3, 20 rpm)	500–1500 mPa·s
Primary Applications	Water-based coatings, adhesives, construction chemicals, textile auxiliaries
Key Features	Fast-acting, persistent defoaming; low odor; easy dispersion without pre-dilution

Get in Touch with ERICW

Let competitive chemical materials go global.



Contact With Us:

E-mail: wangxingqiang@ericwchem.com


Have a Questions? Call Us:

15921782326


Add:

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