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Highly stable anionic silicone emulsion with excellent shelf life and freeze-thaw resistance.
Provides superior softness, smoothness, and hydrophobicity on textile and nonwoven substrates.
Low foaming profile suitable for high-speed industrial coating and padding applications.
Compatible with common textile auxiliaries including wetting agents, binders, and crosslinkers.
Eco-preferred formulation with low APEO content and compliant with major restricted substances lists (e.g., ZDHC MRSL Level 3).
Softening and hydrophobization of woven and knitted cotton, polyester, and blends in apparel finishing.
Surface treatment of nonwovens for hygiene products including baby wipes, feminine care, and medical gowns.
Functional finishing of technical textiles such as filtration media and geotextiles requiring durable water repellency.
Coating additive for improving slip and release performance in paper and film converting operations.
| Chemical Type | Anionic polydimethylsiloxane (PDMS) emulsion |
| Product Form | Aqueous emulsion |
| Appearance | Opaque white to off-white liquid |
| pH (1% aqueous solution, 25°C) | 5.5 – 7.0 |
| Active Content (wt%) | 30.0 ± 1.0% |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm, 25°C) | 50 – 200 |
| Particle Size (D50, nm) | 150 – 300 |
| Freeze-Thaw Stability | Passes 3 cycles (–10°C for 16 h / 25°C for 8 h) |
Q1: What is the primary function of DOWSIL SM 7060 EX in coating and ink formulations?
A: DOWSIL SM 7060 EX is a non-ionic silicone emulsion designed to provide surface modification, improving substrate wetting, leveling, and slip while reducing surface defects such as craters and orange peel. It is commonly used to enhance film uniformity and reduce surface tension without significantly affecting gloss or intercoat adhesion.
Q2: Is DOWSIL SM 7060 EX compatible with water-based systems?
A: Yes — it is formulated as a stable, anionic/non-ionic hybrid silicone emulsion optimized for compatibility with water-based acrylics, polyurethanes, alkyds, and pigment dispersions. It generally exhibits good stability in pH ranges from 6 to 9 and can be incorporated during let-down or post-addition, depending on formulation sensitivity.
Q3: How should DOWSIL SM 7060 EX be incorporated into a formulation to avoid destabilization or phase separation?
A: It is recommended to add DOWSIL SM 7060 EX slowly under moderate agitation, typically after the main binder and pigment dispersion are well homogenized. Avoid high-shear mixing immediately before or after addition, and ensure compatibility testing with other additives (e.g., defoamers, rheology modifiers) to prevent coalescence or viscosity anomalies.
Q4: Can DOWSIL SM 7060 EX be used in direct food-contact coatings?
A: DOWSIL SM 7060 EX is not pre-approved for direct food contact applications. Its use in food-contact coatings requires full regulatory assessment by the formulator, including evaluation against applicable regional requirements (e.g., FDA 21 CFR, EU Framework Regulation), migration testing, and final end-use validation.
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