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Medium-High Viscosity Adaptation - Balanced viscosity, combining lubricity and fluidity, suitable for various industrial conditions
Excellent Chemical Inertness - Non-reactive, resistant to acid, alkali and oxidation, good compatibility with most substrates
Strong Temperature & Radiation Resistance - Stable at -45℃ to 300℃, resistant to ultraviolet, electromagnetic and other radiations
Low Volatility & Shear Resistance - Extremely low volatility, good shear stability, less loss and long service life
Outstanding Hydrophobicity & Insulation - Low surface tension, excellent hydrophobicity, and reliable electrical insulation
Damping Medium - Damping fluid for precision instruments and equipment, providing stable damping effect and smooth operation
Dielectric Application - Insulating medium for electrical and electronic equipment, stable and reliable insulation at high and low temperatures
Mold Release Additive - Mold release for rubber and plastic products, improving efficiency and ensuring surface finish
Hydrophobic Modification - Hydrophobic treatment for glass, mineral wool and textiles, enhancing waterproof and moisture-proof performance
| Density (25℃) | 0.975 - 0.98 g/cm³ (Typical Value) |
| Flash Point | >320℃ (Typical Value) |
| Setting Point | -45℃ (Typical Value) |
| Surface Tension (25℃) | About 0.022 N/m (Typical Value) |
| Dynamic Viscosity (20℃) | 60,000 mPa·s (Typical Value) |
| Kinematic Viscosity (25℃) | About 60,000 mm²/s (Typical Value) |
| Specific Gravity (25℃, Water/4℃) | 0.975 - 0.980 (Typical Value) |
Q1: What is the primary function of WACKER AK 200000 Silicone Oil in industrial formulations?
A: WACKER AK 200000 Silicone Oil is a high-viscosity polydimethylsiloxane (PDMS) used primarily as a surface modifier and processing aid to improve slip, leveling, and anti-blocking performance in coatings, inks, adhesives, and polymer composites.
Q2: Is AK 200000 compatible with common organic solvents and resin systems?
A: Yes — it demonstrates good compatibility with a wide range of organic solvents (e.g., aliphatic and aromatic hydrocarbons, esters, ketones) and is widely used in acrylic, polyester, epoxy, and polyurethane-based systems. Compatibility should always be verified under actual formulation conditions due to potential viscosity or phase stability effects.
Q3: How does AK 200000 differ from lower-viscosity silicone oils like AK 100 or AK 500?
A: AK 200000 offers significantly higher molecular weight and viscosity, resulting in enhanced film-forming capability, longer-lasting surface effects, and reduced volatility. This makes it especially suitable for applications requiring persistent lubricity or where migration resistance is critical.
Q4: Can AK 200000 be used in food-contact or pharmaceutical-related applications?
A: While AK 200000 is not specifically certified for direct food contact or pharmaceutical use, it may be considered for indirect applications (e.g., release agents for packaging materials) subject to full regulatory evaluation by the end-user. Always consult applicable local regulations and obtain formal documentation from WACKER before such use.
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