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Highly stable linear polydimethylsiloxane (PDMS) fluid with consistent viscosity and molecular weight distribution.
Excellent thermal stability, maintaining performance across a wide temperature range from –50 °C to +200 °C.
Low surface tension and superior spreading characteristics for uniform film formation on diverse substrates.
Hydrophobic and moisture-resistant, providing reliable protection in humid or wet environments.
Compatible with common organic solvents, resins, and elastomers—ideal for formulating silicone-based additives and carriers.
Lubricant base for precision instruments, optical components, and small mechanical assemblies.
Carrier fluid in silicone release coatings for paper, film, and composite mold liners.
Viscosity modifier and processing aid in silicone rubber and gel formulations.
Key ingredient in high-performance personal care emulsions requiring sensory elegance and skin compatibility.
Dielectric fluid in specialty electronic encapsulants and thermal interface materials.
| Chemical Type | Linear polydimethylsiloxane (PDMS) |
| Product Form | Clear, colorless liquid |
| Appearance | Transparent, odorless, non-yellowing |
| Viscosity (25 °C, cSt) | Approx. 1,000 cSt |
| Density (25 °C, g/cm³) | 0.97–0.98 |
| Refractive Index (25 °C) | 1.402–1.405 |
| Flash Point (COC, °C) | ≥300 |
| Volatility (150 °C, 24 h, % mass loss) | <1.0% |
Q1: What is the primary function of DOWSIL BY 16-846 in personal care formulations?
A: DOWSIL BY 16-846 is a high-molecular-weight, non-volatile silicone fluid designed to provide long-lasting skin conditioning, silky slip, and improved spreadability in leave-on and rinse-off products—commonly used in moisturizers, sunscreens, and hair conditioners.
Q2: Is DOWSIL BY 16-846 compatible with common surfactant systems and emulsifiers?
A: Yes, it demonstrates broad compatibility with anionic, nonionic, and amphoteric surfactants, as well as typical oil-in-water and water-in-oil emulsifiers, making it suitable for use in cleansing gels, foaming lotions, and multi-phase systems without destabilizing the formulation.
Q3: How does DOWSIL BY 16-846 differ from lower-viscosity silicone fluids like DOWSIL 200 Fluids?
A: Unlike lower-viscosity linear polydimethylsiloxanes, DOWSIL BY 16-846 offers higher molecular weight and greater film-forming capability, resulting in enhanced sensory persistence and reduced volatility—ideal for applications where residual feel and barrier performance are critical.
Q4: Can DOWSIL BY 16-846 be used in rinse-off hair care products?
A: Yes, it is frequently incorporated into shampoos and conditioners to improve wet combing, reduce static, and impart softness—even at low usage levels—without compromising lather quality or rinseability when properly formulated.
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