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Highly stable, anionic silicone emulsion designed for easy incorporation into aqueous systems.
Provides excellent lubricity and surface slip without compromising adhesion in coating formulations.
Offers good compatibility with common water-based polymers, surfactants, and thickeners.
Delivers durable hydrophobicity and soft-touch feel on treated substrates.
Low foaming profile suitable for high-shear processing and industrial coating lines.
Textile finishing for enhanced hand feel, wrinkle resistance, and fabric softness.
Leather finishing to improve grain clarity, flexibility, and water repellency.
Water-based architectural coatings for improved leveling and substrate wetting.
Industrial maintenance coatings requiring reduced surface friction and improved abrasion resistance.
Nonwoven treatment for hydrophobic barrier enhancement and tactile refinement.
| Chemical Type | Anionic polydimethylsiloxane (PDMS) emulsion |
| Product Form | Aqueous emulsion |
| Appearance | Opaque white to off-white liquid |
| pH (1% aqueous solution) | 5.0 – 7.0 |
| Active Content (wt%) | 25.0 – 27.0% |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm) | 50 – 200 |
| Freeze-Thaw Stability | Stable after one cycle (–10 °C for 16 h, then 23 °C for 8 h) |
| Recommended Storage Temperature | 5 – 35 °C |
Q1: What is the primary function of DOWSIL BY 22-744 EX in coating and ink formulations?
A: DOWSIL BY 22-744 EX is a non-ionic silicone emulsion designed to provide surface leveling, slip enhancement, and reduced surface tension in water-based coatings, inks, and overprint varnishes. It helps minimize defects such as orange peel, craters, and pinholes while improving substrate wetting and gloss uniformity.
Q2: Is DOWSIL BY 22-744 EX compatible with common water-based acrylic and polyurethane dispersions?
A: Yes, it demonstrates good compatibility with a broad range of waterborne polymer systems, including acrylics, styrene-acrylics, and aliphatic polyurethane dispersions. Compatibility should be verified under actual formulation conditions, especially when high shear or elevated temperatures are involved.
Q3: How should DOWSIL BY 22-744 EX be incorporated into a formulation?
A: It is typically added during the let-down or post-addition stage, after the main binder and pigments have been dispersed. Gentle mixing is recommended to avoid excessive foaming. Pre-dilution with water may improve dispersion in sensitive systems, and addition at ambient temperature is preferred.
Q4: Does DOWSIL BY 22-744 EX affect film clarity or yellowing in clear coatings?
A: When used within recommended dosage levels, it generally maintains optical clarity and does not contribute to yellowing in clear, water-based systems. Its non-ionic nature and low volatility support long-term stability without compromising transparency or lightfastness.
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