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High-solids, anionic silicone emulsion offering excellent compatibility with water-based systems.
Delivers outstanding lubricity, softness, and hydrophobicity on treated substrates.
Stable across a broad pH range (pH 5–9), supporting formulation flexibility in coatings and inks.
Low foaming profile, minimizing processing issues in high-shear industrial applications.
Enables durable surface modification without compromising adhesion of subsequent layers.
Water-based architectural and industrial coatings for enhanced slip and mar resistance.
Flexographic and gravure printing inks to improve substrate wetting and ink transfer.
Paper and board coatings for improved release performance and surface smoothness.
Textile finishing formulations targeting durable soft handle and moisture management.
Adhesive and sealant modifiers to reduce surface energy and enhance substrate compatibility.
| Chemical Type | Dimethyl silicone polymer emulsion |
| Product Form | Opaque white liquid dispersion |
| Appearance | Homogeneous, low-viscosity liquid |
| Active Content | 25–27 wt% silicone solids |
| pH (10% aqueous solution) | 6.5–7.5 |
| Density (25 °C) | Approx. 0.98–1.02 g/cm³ |
| Particle Size (D50) | 0.1–0.3 µm |
| Primary Applications | Coatings, inks, paper, textiles, adhesives |
Q1: What is the primary function of DOWSIL 1-2620 in coating and ink formulations?
A: DOWSIL 1-2620 is a water-based silicone dispersion designed to provide surface modification benefits—such as improved slip, mar resistance, substrate wetting, and reduced surface tension—without significantly affecting gloss or film clarity in aqueous systems.
Q2: Is DOWSIL 1-2620 compatible with acrylic, polyurethane, and vinyl emulsions?
A: Yes, it demonstrates broad compatibility with common waterborne polymer dispersions, including acrylics, polyurethanes, and vinyl acetate copolymers. Compatibility should always be verified under actual formulation conditions, particularly when high shear or extreme pH is involved.
Q3: How should DOWSIL 1-2620 be incorporated into a formulation?
A: It is typically added during the let-down stage, after the main binder and pigments have been dispersed. Gentle mixing at low to moderate shear is recommended to avoid destabilizing the dispersion or entraining excessive air.
Q4: Does DOWSIL 1-2620 contribute to foam generation or stability in aqueous systems?
A: While it is not a defoamer, DOWSIL 1-2620 may slightly reduce foam tendency due to its surface-active nature. However, it is not intended for foam control, and dedicated defoamers may still be required depending on process conditions and formulation composition.
Q5: Can DOWSIL 1-2620 be used in direct food-contact coatings?
A: DOWSIL 1-2620 is not pre-approved for direct food-contact applications. Formulators must conduct full regulatory evaluation—including migration testing and compliance verification—against applicable regional regulations before considering use in such applications.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
