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High-solids, water-based silicone emulsion offering excellent stability in aqueous systems.
Provides superior lubricity, softness, and hydrophobicity on treated substrates.
Compatible with cationic, anionic, and nonionic formulations—ideal for co-formulation.
Low foaming profile suitable for high-shear processing and continuous industrial applications.
Non-volatile, VOC-compliant formulation meeting stringent environmental and regulatory requirements.
Textile finishing for durable soft hand feel and wrinkle resistance.
Personal care formulations including conditioners, lotions, and shampoos.
Paper coating to enhance surface smoothness, ink receptivity, and moisture barrier.
Industrial metalworking fluids for improved lubricity and corrosion inhibition.
Leather finishing to impart suppleness, water repellency, and abrasion resistance.
| Chemical Type | Dimethyl silicone polymer emulsion |
| Product Form | Opaque white liquid |
| Appearance | Stable, milky-white emulsion |
| Solids Content (wt%) | 50 ± 1% |
| pH (25°C) | 6.0 – 7.5 |
| Viscosity (mPa·s, Brookfield LVT, Spindle #3, 20 rpm) | 200 – 600 |
| Density (g/cm³, 25°C) | 0.98 – 1.02 |
| Freeze-Thaw Stability | Passes 3-cycle test (no separation or viscosity change) |
Q1: What is the primary function of Dow Corning 500W in formulations?
A: Dow Corning 500W is a stable, anionic silicone emulsion designed to provide surface lubricity, softening, and water repellency in aqueous-based systems. It is commonly used to enhance feel, reduce friction, and improve processability in coatings, textile treatments, paper finishes, and personal care products.
Q2: Is Dow Corning 500W compatible with cationic or high-ionic-strength systems?
A: As an anionic emulsion, Dow Corning 500W may experience instability—such as coagulation or phase separation—when directly mixed with strongly cationic ingredients or in highly saline environments. Compatibility should be verified experimentally under actual formulation conditions, and pH adjustment or use of appropriate stabilizers may be required.
Q3: How should Dow Corning 500W be incorporated into aqueous formulations?
A: It is typically added during the final stages of mixing under gentle agitation to avoid excessive shear, which could destabilize the emulsion. Pre-dilution with deionized water is recommended before addition to sensitive systems. Dosage depends on formulation requirements but generally ranges from 0.1% to 2% by weight of the total batch.
Q4: Can Dow Corning 500W be used in food-contact or cosmetic applications?
A: Dow Corning 500W is not specifically approved for direct food contact or leave-on cosmetic applications. Its suitability for regulated end uses must be confirmed by the formulator based on applicable regulatory frameworks, intended exposure, and full formulation safety assessment.
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