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Highly stable silicone elastomer suspension in aqueous medium for easy handling and dispersion.
Offers excellent soft-touch feel and skin compatibility, suitable for personal care formulations.
Provides efficient rheology modification and texture enhancement in emulsion-based systems.
Compatible with a broad range of surfactants, preservatives, and active ingredients without destabilization.
Non-volatile, non-irritating, and free of solvents or VOCs—supporting sustainable formulation goals.
Leave-on skin care products including moisturizers, body lotions, and facial serums.
Rinse-off formulations such as shampoos, body washes, and cleansing gels.
Makeup primers and foundations requiring smooth application and long-wear comfort.
After-sun and soothing gels where cooling sensation and barrier support are desired.
| Chemical Type | Dimethicone-based silicone elastomer suspension |
| Product Form | Aqueous suspension (non-ionic) |
| Appearance | Opaque white to off-white viscous liquid |
| pH (10% in DI water) | 5.0–7.0 |
| Viscosity (Brookfield, #3 spindle, 20 rpm, 25°C) | 8,000–12,000 cP |
| Solids Content | 25–27 wt% |
| Key Features | Soft-focus effect, sensory enhancement, emulsion stabilization |
| Benefits | Improved spreadability, reduced tackiness, enhanced skin hydration perception |
Q1: What is the primary function of DOWSIL 9509 in formulations?
A: DOWSIL 9509 is a ready-to-use silicone elastomer suspension designed to provide soft-touch feel, improved slip, and enhanced surface aesthetics in personal care and cosmetic products. It functions as a rheology modifier and sensory enhancer without requiring high-shear dispersion or pre-treatment.
Q2: Is DOWSIL 9509 compatible with water-based and anhydrous systems?
A: Yes, DOWSIL 9509 exhibits broad compatibility across aqueous emulsions, surfactant-based cleansers, and oil-phase systems. Its stable suspension allows for straightforward incorporation into both cold-processed and heated formulations, though compatibility should be verified under specific formulation conditions.
Q3: How should DOWSIL 9509 be incorporated into a formulation?
A: It is typically added during the final phase of manufacturing—either post-emulsification or after cooling—to preserve its elastomeric structure. Gentle mixing is recommended to avoid excessive shear, which may affect particle integrity and performance.
Q4: Does DOWSIL 9509 require preservatives when used in aqueous products?
A: As a water-containing suspension, DOWSIL 9509 contains a preservative system suitable for typical storage conditions. However, when diluted into finished formulations—especially those with high water activity or low pH—the overall preservation strategy must be reassessed and validated per product stability requirements.
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