SH-204A Polyether Modified Silicone Fluids
SH-204A (CAS 68937-55-3) is a premium polyether-modified silicone oil featuring a high viscosity (1000–3500 mPa·s at 25°C) and a nonionic structure, engineered to improve surface properties across a broad spectrum of industrial formulations. Its siloxane-polyether copolymer design ensures excellent wetting, leveling, and surface defect control in both waterborne and solvent-based systems.
Technical Specifications
| Property | Typical Value |
|---|---|
| Chemical Identity | Dimethylsiloxane, ethylene oxide/propylene oxide block copolymer |
| CAS NO | 68937-55-3 |
| Ionic Type | Nonionic |
| Appearance | Clear to slightly hazy liquid |
| Color | Colorless to pale yellow |
| Viscosity (25°C) | 1000–3500 mPa·s |
| Density (25°C) | 1.02–1.05 g/cm³ |
| Surface Tension (0.1%) | ≤ 22 dyn/cm |
| Cloud Point (1% aqueous) | 35–45°C |
| Active Content | ≥ 99% |
| Solubility | Dispersible in water and common solvents |
Product Features & Benefits
Superior Surface Tension Reduction: Enhances substrate wetting and promotes uniform coating coverage.
Excellent Leveling & Flow: Delivers smooth, defect-free films by minimizing cratering and fisheyes.
High Viscosity: Provides enhanced slip and lubricity, beneficial in plastic processing and coatings.
Wide Compatibility: Suitable for acrylic, polyurethane, epoxy, and other resin systems.
Stable Performance: Maintains effectiveness in neutral to mild pH conditions, ensuring formulation robustness.
Recommended Applications
Coatings & Paints: Leveling and anti-cratering additive for waterborne and solventborne systems.
Printing Inks: Improves film uniformity and reduces surface defects.
Plastic Processing: Functions as an internal lubricant and mold release agent.
Textiles: Provides softness, antistatic effects, and hydrophilic finishes.
Personal Care (under development): Potential emulsifier and conditioning agent.
Safety & Regulatory Information
Non-hazardous, non-flammable under normal handling conditions.
Follow standard industrial hygiene practices.
Safety Data Sheet (SDS) available upon request.
Packaging Options:
We offer flexible packaging for both R&D and bulk industrial use:
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1 kg & 5 kg HDPE bottles (sample/lab-scale)
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25 kg pails & 200 kg drums (industrial production)
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1000 kg IBC totes available on request
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Custom viscosity grades and formulations available under Silico® brand lines
All technical data provided is based on current knowledge and experience. Users must test product suitability for intended applications.
No warranties are expressed or implied. Silico® assumes no liability for incidental or consequential damages.
Jessica G.
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