Name: VOK VOK-901W Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of VOK VOK-901W Defoamer

Highly effective silicone-based defoamer with rapid knock-down and lasting 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% w/w in final formulation.
Thermally stable up to 120°C, maintaining performance during high-shear mixing and elevated-temperature processing.
Non-yellowing and non-staining, preserving clarity and color integrity in sensitive coatings and adhesives.

Typical Applications Of VOK VOK-901W Defoamer

Architectural and industrial waterborne paints and coatings.
Textile printing pastes and pigment dispersions.
Adhesives and sealants, especially PVA and rubber-based formulations.
Construction chemicals including cementitious grouts and tile adhesives.
Water treatment systems requiring foam control in biological and clarification processes.

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	White to off-white opaque liquid
Appearance	Homogeneous, slightly viscous dispersion
pH (1% aqueous dilution)	6.0–7.5
Density (25°C)	0.98–1.02 g/cm³
Viscosity (25°C, Brookfield LVT, Spindle #3, 6 rpm)	1,200–2,500 mPa·s
Flash Point	Not applicable (aqueous system)
Storage Stability	12 months in unopened original container at 5–30°C

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