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WACKER AK 50 SILICONE FLUID is a low-viscosity linear silicone fluid in Wacker’s AK series, designed for industrial defoaming, mold release, electrical insulation, precision lubrication, and textile finishing. With high Si–O bond energy, it offers excellent temperature resistance, low volatility, strong hydrophobicity, and superior processability over mineral oils.
Low viscosity & easy handling - Excellent fluidity, easy to add and coat, suitable for fine processing
Chemically inert & stable - Non-reactive, resistant to acid, alkali and oxidation, compatible with most substrates
Wide temperature resistance - Stable from -60℃ to 300℃, resistant to radiation and high-temperature oxidation
Low volatility & shear stability - Extremely low volatility, good shear stability, minimal long-term loss
Excellent surface properties - Low surface tension, outstanding hydrophobicity, good lubrication and release
Industrial defoaming - Defoaming for anhydrous/low-water systems, fast bubble control in chemical, pharmaceutical and food processing
Rubber & plastic mold release - Easy release without sticking, ensuring smooth surface finish
Electrical insulation - Stable insulation for electronic components in high/low temperature environments
Precision lubrication - Reduces friction in instruments and bearings, ensuring accurate operation
Textile finishing - Improves fabric smoothness, water resistance and durability
| Density (25℃) | 0.96 g/cm³ |
| Flash Point (closed cup) | >250℃ |
| Kinematic Viscosity (25℃) | approx. 50 mm²/s |
| Dynamic Viscosity (25℃) | 50 mPa·s |
| Surface Tension (25℃) | approx. 0.021 N/m |
| Setting Point | approx. -60℃ |
| Refractive Index (25℃) | 1.403 |
| Molecular Weight | approx. 3600 D |
Q1: What is the primary function of WACKER AK 50 Silicone Oil in industrial formulations?
A: WACKER AK 50 Silicone Oil is primarily used as a surface modifier and processing aid to improve slip, leveling, and substrate wetting—especially in coatings, inks, adhesives, and sealants. Its low surface tension helps reduce defects such as orange peel, craters, and pinholes during film formation.
Q2: Is WACKER AK 50 Silicone Oil compatible with water-based systems?
A: Yes, it is formulated for compatibility with both solvent-based and water-based systems. It can be incorporated into aqueous dispersions and emulsions, though optimal performance may require pre-dilution or use of appropriate emulsifiers depending on the formulation pH and ionic strength.
Q3: How should WACKER AK 50 Silicone Oil be added to a formulation to ensure uniform dispersion?
A: For best results, add WACKER AK 50 Silicone Oil during the later stages of mixing—typically after pigments and fillers have been fully dispersed—to avoid excessive de-wetting. Gentle agitation is recommended; high-shear conditions are generally not required, but thorough incorporation is essential to prevent surface defects.
Q4: Can WACKER AK 50 Silicone Oil be used in food-contact or pharmaceutical applications?
A: WACKER AK 50 Silicone Oil is not specifically designed or certified for direct food-contact or pharmaceutical use. Customers requiring regulatory compliance for such applications should consult WACKER’s technical service team for suitable alternatives that meet relevant food-grade or pharma-grade specifications.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
