Name: Dow DOWSIL 3-8219 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow DOWSIL 3-8219 Defoamer

Highly effective silicone-based defoamer for rapid foam knockdown 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% active in final formulation.
Thermally stable up to 120°C, maintaining performance during high-temperature polymerization and processing.
Non-yellowing and non-staining, preserving clarity and color integrity in sensitive coatings and adhesives.

Typical Applications Of Dow DOWSIL 3-8219 Defoamer

Architectural and industrial waterborne paints and coatings.
Adhesives and sealants, especially pressure-sensitive and latex-based formulations.
Textile and leather finishing auxiliaries.
Construction chemicals, including cementitious mortars and tile adhesives.
Water-based inks and functional fluid systems requiring low-foam processing.

Chemical Type	Silicone oil-in-water emulsion
Product Form	White to off-white opaque liquid
Appearance	Homogeneous, pourable emulsion
Primary Applications	Water-based coatings, adhesives, construction chemicals, textiles
Key Features	Rapid defoaming, persistent antifoam activity, broad compatibility
Benefits	Improved process efficiency, enhanced film quality, reduced defects (e.g., craters, pinholes)
pH (1% aqueous dilution)	6.0–8.0
Storage Stability	≥12 months at 5–30°C in unopened original container

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