Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

VOK VOK-900 Defoamer

VOK VOK-900 Defoamer is a high-performance silicone-based antifoam agent designed for demanding industrial applications including wastewater treatment chemical manufacturing and coating processes. It delivers rapid foam suppression excellent stability under shear and broad compatibility with aqueous systems while maintaining low dosage efficiency and minimal residue.
  • vok vok 900 defoamer_cecb8894
  • vok vok 900 defoamer_cecb8894

Features Of VOK VOK-900 Defoamer

  1. Highly effective silicone-based defoamer with rapid knock-down and long-lasting foam suppression.

  2. Excellent compatibility with water-based systems, including acrylics, polyurethanes, and latex formulations.

  3. Low dosage requirement — typically effective at 0.05–0.3% w/w in finished products.

  4. Thermally stable up to 120°C, maintaining performance during high-shear mixing and elevated processing temperatures.

  5. Non-yellowing and non-staining, ensuring no impact on final product color or clarity.

Typical Applications Of VOK VOK-900 Defoamer

  1. Architectural coatings and interior/exterior wall paints.

  2. Industrial maintenance coatings and protective primers.

  3. Adhesives and sealants, especially waterborne acrylic and SBR systems.

  4. Textile printing pastes and pigment dispersion processes.

  5. Construction chemicals including cementitious grouts and tile adhesives.

Specifications Of VOK VOK-900 Defoamer

Chemical TypeSilicone-polyether copolymer emulsion
Product FormWhite to off-white liquid emulsion
AppearanceOpaque, homogeneous, slightly viscous liquid
pH (1% aqueous solution)6.5 – 7.5
Specific Gravity (25°C)1.01 – 1.04 g/cm³
Viscosity (Brookfield RV, 25°C)150 – 350 mPa·s
Storage StabilityStable for ≥12 months in unopened original container at 5–30°C
Primary ApplicationsWater-based coatings, adhesives, construction chemicals, textile auxiliaries


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