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

Rhodoline DF 681F Defoamer

Rhodoline DF681F is a mineral oil-based defoamer from Solvay (Rhodia, France), formulated for aqueous systems. It is a white liquid that is easy to handle and mix, making it a practical additive for a wide range of industrial applications.

Features Of Rhodoline DF 681F Defoamer

  1. Defoaming Performance:

    1. Rapidly breaks down both large and fine bubbles while providing long-lasting inhibition of re-foaming, ensuring consistent foam control.

    2. Maintains effectiveness across extreme conditions, including wide temperature and pressure ranges, as well as in acidic or alkaline environments, ensuring reliability in diverse settings.

  2. Safety & Composition:

    1. Silicone-free, reducing the risk of surface defects like craters—particularly valuable in coating applications where a smooth finish is critical.

    2. Low toxicity, with approval for food-contact applications (e.g., vegetable washing) following safety evaluations, ensuring safety in sensitive uses.

  3. Compatibility: Suitable for low-viscosity aqueous systems, including coatings, inks, adhesives, and detergents, integrating seamlessly without compromising product performance.

Typical Applications Of Rhodoline DF 681F Defoamer

  1. Coatings & Inks: Controls foam in latex paints (interior/exterior walls), industrial coatings, and ink production, enhancing surface quality and stability by preventing defects like pinholes.

  2. Leather Processing: Eliminates foam in leather finishing processes, improving surface smoothness and boosting coating adhesion for better product quality.

  3. Adhesives: Reduces bubbles in adhesive formulations, ensuring consistent bonding performance and enhancing the reliability of the final product.

Specifications Of Rhodoline DF 681F Defoamer

Appearance
White liquid; opaque white liquid
Chemical Composition
Mineral oil-based formulation with nonionic surfactants
Density
0.88 g/cm³ @ 25°C ; ~0.87 g/cm³
Dynamic Viscosity
< 1,000 mPa·s @ 20°C ; 100–1,000 cps @ 25°C
Boiling Point
100–482°C (212–900°F)
Flash Point
> 180°C (> 356°F)
pH Range
5.0–6.5 @ 20–25°C
Solubility in Water
Immiscible
Vapor Pressure
< 17.50 mmHg @ 20°C
Evaporation Rate
< 1
Odor
Slight


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